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Wiki Page: Modeling Approaches, Tips, Technique for Bend Piping Components in AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group Attention: Please see the following AutoPIPE help section: Help Contents Contents Tab Modeling Approaches Modeling Approaches This help has been provided in order to give users ideas for modeling typical piping arrangements. The steps shown in each example should not be taken as the only method available to create models. In addition, the intent of the examples is to present ways to create adequate models of specific piping components for analytically purposes.           Anchors        Bends           Cuts              Flexible Joints           Frames         Hangers           Nozzles        Pipes           Reducers      Rotating Equipment           Supports       Tees           Valves           Vessels Comments, Questions, and Answer: Q1. Modeling an Elbow with Tapered weld joint for Nuclear NB analysis Answer: Model elbow as described above, at each end of the elbow where the elbow is welded to the pipe, Insert Xtra Data joint Type and User SIF there are multiple "Joint Type"  available      As-Welded Butt Weld      Flush Butt Weld      As-Welded Butt Weld NB 4250 Transition      Flush Butt Weld NB 4250 Transition      As-Welded Butt Weld 1:3 Transition      Flush Butt Weld 1:3 Transition      Socket/Fillet Weld Select the type of weld joint the best fits your requirements based on code description. In AutoPIPE, press toolbar icon "Show Joint Type", located on left toolbar near the bottom. Use this feature to clearly see where joint types have been applied, and review the "Joint Type, SIF" tab of the input grid for settings. Q2.  Modeling 3D, 5D or Larger Sweep Elbows  Answer : AutoPIPE's Bend Point dialog screen has a Bend radius field which defaults to Long radius with pull down option for short radius. You can either select short radius or, for a larger sweep elbow, click once on the Bend radius field and type the actual radius (units are in bottom right hand corner of screen). Q3. Inserting Valves, Reducers Or Other Components After Elbow Or After Tee Answer: A bend component is made up of 4 node points: A. Near Point  - automatically generated B. Tagent Interface Point (TIP)  - user generated C. Far Point  - automatically generated D. Mid Point (if enabled)  -   user specified between Near and Far Point. AutoPIPE does not allow users to insert the next node point or component between the Bend's Near and Far points. If done so, the bend cannot be drawn and a warning will be mentioned in the Tools Model Consistency check report. User must first enter a pipe run directly after an elbow TIP point to just beyond the automatically generated Near OR Far points before adding the next piping component   This means that there will be 2 points, a bend point and a run point, very close to one another. The should not be exactly in the same location, or another warning will be displayed about a zero length run. For inserting valves and other components directly after a tee, AutoPIPE requires that the user first input a run of pipe after the tee before inserting the component to model the leg / branch weld of the tee.   Q4. When a flanged elbow is modeled in AutoPIPE, does it affect the stiffness of the elbow in the analysis?  If so, how? Answer:  Yes it does.  You can see the effect of this on the flexibility factor of the elbow in the Elbow Report in the Input model listing.  AutoPIPE's official training class covers this modeling.   Q4. I have a question regarding 1000m radius bend in Autopipe. I would like to add points on the bend. What is the easiest way as I have to insert points at 6m intervals. Answer: There is no command in AutoPIPE to split/insert a bend with multiple points.  However, please see the following options available based on the version of AutoPIPE being used. AutoPIPE V8i 09.05.xx.xx and Lower: Option #1: Create a miter bend with as many cuts as desired. Please see the following AutoPIPE help section for details: Help Contents Contents Tab Modeling Approaches Modeling Approaches Bend Miter Bends Model 2: 3 Cuts - Widely Spaced. Using Excel, calculate all Option #2: Create the bend in AutoCAD and manually transfer each node point (DX, DY, DZ) coordinates to AutoPIPE as new bends are added. AutoPIPE V8i 09.06.xx.xx and higher: Option #1: All options available in AutoPIPE 9.5 and lower Option #2: Create the bend in AutoCAD and import file using the new Import AutoCAD file procedure. Option #3: (Preferred method) Create a ring main using the new Ring Main Wizard, after the ring main has been created, cut/copy/paste/move it to the correct location in the model    Q5 How does AutoPIPE calculate the weight of a typical pipe fittings (i.e. Tee, elbow, reducer, etc..)? Answer: AutoPIPE fittings are made up of equivalent center-line length of straight pipe with assigned pipe properties. Change the pipe properties used to construct a fitting in order to account for different fitting weights. Reducer are the only exception, (from online help): Over the length of the reducer, AutoPIPE assumes an average of the connecting pipes for the outside diameter (Do), wall thickness (t). This affects the reducer weight, pipe contents weight, and section properties. Material properties (E, a, and allowable stresses) from the pipe at the near end of the reducer are extended to the far end of the reducer. Q6. How to model a Pulled Bend and a does the program consider the thinning wall on the outer radius of a pulled bend? Answer: A pulled bend is a bend that is formed by a machine wrapping the pipe around a shoe horn form (i.e. like a tubing bender bending tubing)   Using AutoPIPE Nuclear version, with piping codes ASME NB, NC, or ND selected, users can set Bend Type = Pulled. For other version of AutoPIPE, Standard or Plus (Advanced), using non-nuclear piping codes, to model a  pulled bend, select Bend Type = "elbow", SIF and flexibility factor will automatically be calculated but suggest that bourdon pressure effect be turned on (Tools Model Options Edit  "Include Bourdon rotational effect" check ON). One side effect of bending the work-piece is the wall thickness changes; the wall along the inner radius of the tube becomes thicker and the outer wall (extrafit) becomes thinner. AutoPIPE does not consider the different wall thickness. The wall thickness is a uniform value specified on the pipe properties dialog screen.   Q7. My piping system has a section of bent piping (not mitered). The radius of the bend is approximately 6ft. The angle of the bend is about 120 degrees. How would I model this bend in AutoPIPE? Answer : See the following options: Option #1: see the following AutoPIPE help section:  Help Contents Contents Tab Modeling Approaches Modeling Approaches Bend Miter Bends Model 2: 3 Cuts - Widely Spaced, use the math formulas to layout the piping and insrt the bends points s needed Option #2: Construct the pipe layout to locate the intersect point of both piping runs connected to the bend (image below, BR02). After the straight pipe is layed out use Modify Convert Point to.. Bend command, specify 6' diameter bend radius and AutoPIPE will automatically insert the bend correctly. Option #3: In AutoPIPE 09.06.xx.xx and higher, use the ring main wizard, the ring is made CCW from the point, so create as a new segment and attach it after the ring has been made. OR, as the same segment careful to locate the ring center offset see following: Results:   Q8. Can the software analyze stress in pipelines where the pipe turns that are not standard 45 or 90 degree turns? Answer : Yes, there are typically 2 types of bends in AutoPIPE: a. Normal bend (any sized fillet radius between two intersecting pipe lengths). b. Mitered bends (both closed and Wide) Note : 1. AutoPIPE assumes the bend is constructed without any kinks and has a uniform wall thickness per the PipeID specified.  2. Any bend angle the is modeled out side of the applied Piping code will need to have a user calculated SIF applied to the bend points as needed. 3. The image on the left is acceptable bend but the bend on the right, although can be constructed, is not good modeling practice. Recommend creating a mitered bend.     Q9.  How to model a socket elbow, or other Socket welded fittings (i.e. Tee, valves, Sockolet, etc..)?  Answer :     It is recommended based on the intent on many ASME codes  to use conservatively an SIF value = 2.1. ASME Codes state the following regarding socket welds: B31.1 use 1.3 for socket welds with no undercut, and 2.1 for all others. B31.3 states "2.1 Max or 2.1 T/Cx but not less than 1.3. Cx is the fillet weld leg length" B31.8 states "2.1 Max or 2.1 T/Cx but not less than 1.3. " To apply this SIF to all bends and Tees perform the following: Press Select Bends to highlight all bends in the model, then press Select Tees to highlight all bends in the model, then press Insert Xtra data Joint Type and User SIF  select "Joint End Type" =  "Socket or Fillet Weld " / "Socket or Fillet Weld (no undercut), OR, "Joint End Type" = User, manually enter the Inplane SIF =2.1, Outplane SIF =2.1, Override all other SIFs at this point = unchecked (i.e maximum SIF used if automatic SIF 2.1), Flexibility Factor = 1.0 (no flexibility)   Q10. When defining an elbow, only specifying end points Elbows have fittings How to specify user stress indices to apply to only one end?  Answer :   With a nuclear piping code selected (i.e.  ASME NB, NC, or ND, etc..), select the bend near or far point then select Insert Xtra Data Joint Type and User SIF select the proper joint type or select User to enter all the indices values. press OK button when completed.  Press the SIF icon to show where SIF values are located:     See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: ASME B31.3 Piping Code Enhancements for AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Enhancements Subarea: Original Author: Bentley Technical Support Group   The following ASME B31.3 enhancements have been logged for inclusion into a future version of AutoPIPE:  Note: if an enhancement has not already been added to the program, log an enhancement request with the respective CAE number. The more requests per an enhancement, the quicker the CAE development team will add that feature to the program.   CAE-CR-10311: Online help for Use Alt. Occ. Allow must include a table for ASME B31.3 2010 Description:  The Allowable Occasional Stress depends upon the Tcr values of the material used defined in the library instead of the operating temperature. The Online help for "Use Alt.Occ.Allow" does not have the table for ASME B31.3 2010 and only includes table for B31.3 2006 and before. Development Project:  TBD  CAE-CR-10585: Add B31.3 2012 piping code Development Project:  9.6.0  CAE-CR-10741: B31.3-2010: Add functionality for user to enter axial and torsional SIF Description: ASME B31.3 2010 edition uses axial and torsional SIFs when calculating Sustained stresses. The default values for both the SIFs are 1.0 in absence of more applicable data. This enhancement will allow the user to be able to enter Axial and Torsional SIF values using the User Joint & SIF dialog. These values will be used in sustained stress calculations. Development Project:  9.6.0   See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Piping Code Calculations - AutoPIPE

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Topics under the heading should be based on: Piping code calculations Be sure to review the following AutoPIPE online help information: Help Contents Contents Tab Reference Information Code Compliance Calculations This area describes variables, equations, and methodology used by AutoPIPE to produce output reports per the code associated with the piping system database. AutoPIPE is capable of generating actual and allowable stresses for each of the applicable stress categories (depending on the current, analyzed load cases) for all codes listed below. Please Note: The Standard edition only has access to 4 ASME codes and European code EN13480 as shown in the Getting Started topic "AutoPIPE Standard vs Advanced vs Nuclear". Select the Pipig code hyperlink below for general questions on the respective code calculations. Note: additonal hyper links are added as new information is presented. ASME B31.1 Power Piping ASME B31.3 Process Piping ASME B31.4 Liquid Transportation Systems for Hydro-carbons, Liquid Petroleum Gas, Anhydrous Ammonia, & Alcohols ASME B31.8 Gas Transmission & Distribution Piping Systems ASME B31.4 Chapter IX Offshore Liquid Piping Systems ASME B31.8 Chapter VIII Offshore Gas Transmission ASME BPV-III-1-NB Boiler & Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components Division 1, Subsection NB, Class 1 Components ASME BPV-III-1-NC Boiler & Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components Division 1, Subsection NC, Class 2 Components ASME BPV-III-1-ND Boiler & Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components Division 1, Subsection ND, Class 3 Components JSME S NC1-PPC Rules on Design and Construction for Nuclear Power Plants, Class 2 Piping BS806 Design and Construction of Ferrous Piping Installations For and In Connection with Land Boilers SPC Swedish Piping Code, Code for Piping in Stationary Plants (Stress Analysis - Method 2) TBK5-6 Norwegian Pressure Vessel Committee, General Rules for Piping Systems STOOMWEZEN (D1101) Dutch Piping Rule D1101 of the Rules for Pressure Vessels CAN/CSA-Z662 Canadian Standards Association, Oil and Gas Pipeline Systems DNV Norwegian Piping Code, Rules for Submarine Pipeline Systems MITI501 Technical Standards for Construction of Nuclear Power Plant Components - MITI Notification No. 501 KHK Level 1 KHK E 012 Japanese Piping Code for Seismic Loads, Level 1 KHKLevel 2 KHK E 012 Japanese Piping Code for Seismic Loads, Level 2 EN13480 EN 13480 European Standard for Metallic Industrial Piping RCC-M French Piping Code SNCT French Piping Code SNiP Russian Trunk Pipelines Code BS7159 Design and Construction of Glass Reinforced Plastics (GRP) Piping Systems for Individual Plants or Sites ISO 14692 Petroleum and Natural Gas Industries, Glass-Reinforced Plastics (GRP) Piping General General Piping Code  Why does AutoPIPE ignore axial force in most of the code equations? Answer: Confirm the model is considering axial force, as this option by default is turned OFF. See Tool Model Options Results "Include axial force" option Excerpt from online help: The piping codes ignore the effect of axial force for calculating stresses in the sustained and occasional categories (only bending moments are considered, see Code Compliance Calculations). This option has been provided to allow the inclusion of axial force effects. By default this option is unchecked.... See online help for more information on this option.  

Wiki Page: ASME BPV-III-1-NB, AutoPIPE Nuclear Piping Code FAQ

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Boiler & Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components Division 1, Subsection NB, Class 1 Components  Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: piping code Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers on ASME NB Piping code in AutoPIPE #1. Question:  If AutoPIPE is calculating elbow stress indices and two elbows are closely spaces per ASME NB-3683.2A, does AutoPIPE automatically multiply the by the product of the weld in the stress indices (per code requirements)??  Answer : Yes AutoPIPE updates the stress indices when the elbows are close together as shown in the following example: .         See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Dynamic Support Forces

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: results Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers about dynamic support forces in AutoPIPE Items #1 Question: AutoPIPE: Dynamic Results Interpretation A. My question is how come the code compliance section does not include both the positive and negative dynamic results (ie GRTP# +/- R#)? Is there a way to do that? OR B. Also, I am confused about how to interpret the local and global forces for the combinations which contain the dynamic support load. Why are the local forces for the dynamic load given as +ve? TR Number: None Product: AutoPIPE Version: n/a Area: General Problem ID#: 74535 Keywords: R1 - R50 Response spectrum cases 1 to 50 H1 - H10 Harmonic cases 1 to 10 M1 - M50 Time history cases 1 to 50 F1 - F10 Force spectrum cases 1 to 10 S1 - S10 Seismic Anchor Movement cases 1 to 10  Answer :  All dynamic results in AutoPIPE are positive. Since it is the maximum absolute value of the oscillating response. By reviewing All AutoPIPE dynamic results for the following are reported as positive numbers: ...R1 - R50 Response spectrum cases 1 to 50 ...H1 - H10 Harmonic cases 1 to 10 ...M1 - M50 Time history cases 1 to 50 ...F1 - F10  Force spectrum cases 1 to 10 ...S1 - S10 Seismic Anchor Movement cases 1 to 10 For more details on this subject please see the following AutoPIPE help section: A. Help Contents Contents Tab Reference Information Results Interpretation Select the "Results Interpretation Overview" link, at the bottom of the listing select "Dynamic Support Forces" link, read the entire section for complete details and workaround. B. Help Contents Contents Tab Reference Information Analysis Considerations Modal Analysis Modal Analysis. Workaround: Crate additional User combinations using -1.0 Factor with the Dynamic load case. For example R1 is defined as shown below with respective displacement of vertical pipe anchored at the bottom:                                 Create a new user combination as followed, NOTE: the -1.0 factor with respective displacement of same vertical pipe anchored at the bottom:                              Item #2     See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Reports - AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: reports Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers on AutoPIPE output reports: Item #1. Results Interpretation Be sure to review AutoPIPE's online help: Help Contents Contents Tab Reference Information  Results Interpretation     This appendix explains how to interpret AutoPIPE's output report results. The coordinate systems used for the results presentation are particularly important, and are listed first. The output sign conventions for the different result types are then described.      - Coordinate Systems      - Total vs. Incremental Loading      - Pipe Displacements      - Pipe Forces and Moments: Global Option      - Anchor Forces      - Support Forces: Hangers and V-stops      - Support Deformations: Hangers and V-stops without Gaps      - V-stops with Gaps and Friction      - Hangers and V-Stops with Imposed Displacement      - Two-Point Hangers and V-Stops      - Straight Pipe Forces and Moments: Local Option      - Support Forces for Guides and Line Stops without Gaps      - Support Forces: Guides & Line Stops with Gaps & Friction      - Two-Point Guides and Line Stops      - Curved Pipe Forces and Moments: Local Option      - Support Forces for Skewed Supports      - Support Forces for Tie/Link Restraints      - Beam Member Forces      - Dynamic Support Forces   Item #2. Analysis Subreports See the following hyperlinks for issue on the respective Anslysis Output sub report: Command: Analyze model Results Output Report:      - Displacement      - Support      - Restraint      - Forces & Moments      - Code Compliance      - Stress Summary      - Frequency      - Mode shapes      - Equipment      - Soil      - Bend Angular Distortion      - Stress Indices      - Tee Plastic Strain      - Beam forces      - General stress      - Preliminary Stress      - Accelerations      - Flange Summary      - Model listing      - Analysis summary      - Steam Relief      - Reference Loads      - Fatigue      - Result summary Iten #3 Component Data Listing: See the following hyperlink for issues on the respective Component Data listing (aka Model Input Listing) report:Command: Toos Model Input listing.      - Extended Component (Point in v6.1)      - Coordinates (Component in v6.1)      - Pipe Properties      - Material Properties      - Material Allowables      - Temperature & Pressure      - Beam      - Forces & Displacements      - Thermal Anchor Movements      - Seismic Anchor Movements      - Center of Gravity      - Earthquake Scale Factors      - Design Temp and Press      - Soil Properties      - Load Summary      - Support      - Bend      - Tee      - Valve      - Flange      - User SIF      - Reducer      - Rigid Pipe      - Reference Points      - Gross Discontinuity Stress      - Segments Data     Item #4: Can AutoPIPE print the Output reports to excel or .csv? Answer : We apologize for the inconvenience, however AutoPIPE cannot print its reports directly to MS word or MS Excel. Reports are currnetly written to the following files: *.OUT,  *.HGR, *.RPT. These file can be opened by any text editor (i.e. NotePad, Ms WORD, ect..) . Also, AutoPIPE can export both the Input gids and Results grids to a database file (*.MDB), for manipulation into customized reports. This enhancement has been logged under CAE-CR-345: Add option to generate reports as EXCEL & WORD files.   Items #5:   AutoPIPE Resutls Grids or Output Reports are found to be Zero (0.00) or Blank  Item #6: What is the meaning of + and -  (+/-) Node points in AutoPIPE results? Answer: Please see the following AutoPIPE help section: Help Contents Contents Tab Reference Information Results Interpretation  Pipe Forces and Moments: Global Option  See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: ASME BPV-III-1-ND, AutoPIPE Nuclear Piping Code FAQ

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Boiler & Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components Division 1, Subsection ND, Class 3 Components   Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: piping code Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers on ASME ND Piping code in AutoPIPE #1. Question: For a system for which level C service conditions are specified in the Design Specification, ASME Section III Subsection ND requires "the conditions of eqs. ND-3653.1 (a)(9a) and ND-3653.1(b)(9b) shall be met using Service Level C coincident pressure P and moment (MA + MB), which result in the maximum calculated stress.   AutoPIPE appears to use the "Peak Pressure" when performing this calculation. If the Service Level C coincident pressure P differs from the Peak Pressure (Level A and B), how can the Level C pressure be specified for this calculation? Answer : AutoPIPE conservatively used peak pressure as it isn't able to identify the load case to get the coincident pressure from. Reprocess the results manually to check the affect of this. #2. Question: How to find out what SIF does AutoPIPE use for stress calculations in each point, for example in tees using ASME ND 1992+1993 addenda? Answer : See AutoPIPE output report Stress Indices.      See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Pipe and Piping Components Enhancements for AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Enhancement Subarea: Original Author: Bentley Technical Support Group   The following enhancements have already been requested: CAE-CR-941: Add two point flange  Development Project:   TBD   CAE- CR-11056  Add new valve type library for Press Safety / Relief Valve (PSV or PRV)   Description: Add a new valve library to the application, Pressure Safety Valve (PSV) commonly known as a Presure Releif  valve, which will be selected from the "Type" drop down list on the valve dialog screen.  Development Project:  TBD   CAE-CR-3218  Increase the length of the pipe identifier name from 8 to 16 characters   Description: Increase the length of the pipe identifier name from 8 to 16 characters. Workaround: The CAE development team has added a tag-no.field that is associated with the a pipe identifier (PIPE ID) that can be edited from the Pipe Properties dialog screen or Pipe Properties tab on the input grids. The maximum length of this field is 36 characters. Development Project:  TBD   CAE-CR-941: Add Two Point Flange Workaround: Use one of  the following modeling apporaches: a. Insert flange components by normal means making sure to provide all the neccessary information. The graphics may show a single flange or a two flanges side by side , both methods are correct.    b. Insert a run of pipe equal to the hub length of a flange. Select this hub length run of pipe and insert Rigid Properties Over Range". Include Weight = OFF (unchecked), Include Thermal Expansion = On (checked), Insert Xtra Data   Select the node point where the flanges will be connected to each other, Insert  Xtra Data Addtional Weight enter the weight of the flange. Select the node point where the flange is welded to the pipe, Insert Xtra Data Joint Type and User SIF enter the correct settings Development Project:  TBD  CAE-CR-11098  Add option to apply lining stiffness  Description:  Add option to apply lining stiffness on the pipe properties dialog. Development Project:  TBD               See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: W2018-11, W2018-12, W2018-16: Not authorized for ???? edition

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Licensing Subarea: Original Author: Bentley Technical Support Group Problem: The following appears when starting AutoPIPE --------------------------- Warning ---------------------------  W2018-11: Not authorized for Standard edition.  Contact Bentley for authorization. Converting to DEMO. --------------------------- OK   ---------------------------   --------------------------- Warning ---------------------------  W2018-12: Not authorized for Plus edition.  Contact Bentley for authorization. Converting to DEMO. --------------------------- OK   --------------------------- --------------------------- Warning ---------------------------  W2018-16: Not authorized for Nuclear edition.  Contact Bentley for authorization. Converting to DEMO. --------------------------- OK   --------------------------- Answer: The problem is Licensing. Procedure to check Licensing: 1. Start AutoPIPE, select OK button when Warning message appears, Select Tools Setting License Management Tool . 2. After the application opens, press on the License Checkout Tab, is one or more of the following visible in your listing: AutoPIPE  AutoPIPE Advances AutoPIPE Nuclear AutoPIPE Stress Iso Add-on AutoPIPE Nozzle AutoPIPE Vessel  If the answer is Yes, continue to step #3. If the answer is No, select Tools Options press the Test Connection button, Which dialog is visible when you press the button: A. Do you see the following: --------------------------- SELECTserver --------------------------- SELECTserver and Activation Key verified. --------------------------- OK --------------------------- This proves that your are connected with Bentley Server. This is no longer an AutoPIPE product problem, but a problem with Select Server or Licensing. Therefore one or more of the following must be applied:  i. Your contract does not have the this software listed on it. Bently Product Support TSG personell  can not make changes to your contract. User must contact  Bentley Licensing team to confirm your applications on your contract and to make changes as required. ii. User Check out restrictions, only your Bentley On-site Administrator can verify any restrictions and change them. Contact your Bentley On-site Admin or Bentley Licensing Team for more information. B. Or, do you see the following:    --------------------------- SELECTserver --------------------------- Server does not support this Activation Key. --------------------------- OK   --------------------------- This confirms that: i. Server Name or Site Activation Key is not correct, - Confirm the Server name and Activation key have been entered correctly - Confirm there are no leading or trailing spaces - Contact Bentley Licensing group for assistance ii. Your internet connection is broken. Re-establish your connection and try again. iii. Bentley Select Server is down. In this case, contact Bentley Select Server Team to confirm and ask when it will be available again.   3. Look at the column next to the version of AutoPIPE trying to license, see the following image:   Is the value = 0 ? If the value is = 0, then you cannot use this version of AutoPIPE V8i 09.05.xx.xx and lower as it does not support trust licensing. AutoPIPE V8i 09.06.xx.xx and higher now supports trust licensing and the applicaton should be able to work. You may consider increasing your pooled license, contact your Bentley Account Manager for options and pricing Is the value 0 ? If the Value is greater than 0, t herefore a license is available for the application, start AutoPIPE. NOTE: A. AutoPIPE V8i 09.05.xx.xx and lower requires that Bentley IEG be installed. Before starting AutoPIPE confirm that the IEG application has been installed by reviewing Control pannel "Add / Remove programs" Or "Programs & Features" . If not, install the application as instructed in the Quickstart.PDF copied to the following folder during the AutoPIPE install:                                      C:\Bentley\AutoPIPE V8i SELECTseries\ B. In addtion, AutoPIPE V8i 08.06.xx.xx and lower requires that Bentley Gateway be running, Plant Security installed, and license server pointer files be configured. Example 1: Considering the above License Management Tool screen shot, there is no license available for AutoPIPE, but there are plenty of license available for AutoPIPE Advanced and Nuclear. Remember AutoPIPE recalls the last license used in the previous session, say AutoPIPE Standard. Start the program, AutoPIPE will start, however the  "W2018-11: Not authorized for Standard edition" warning would be displayed as there is no license available for AutoPIPE Standard and that was the last license used by the application before being closed. Options: 1. Wait for an AutoPIPE Standard License to become available or 2. From within AutoPIPE, select Tools Settings Edition change selected radio button from Standard to either Advanced or Nuclear, because both have more than 0 license available.     Example #2: Given the following screen shot from License Management Tool   When AutoPIPE starts you may get anyone of the following errors: W2018-12: Not authorized for Plus edition. W2018-16: Not authorized for Nuclear edition. Regardless the application will be converting to DEMO Mode. Remember, you may only license the version of AutoPIPE available in License Management Tool, in this case that is AutoPIPE Standard. From with in AutoPIPE, select Tools Settings Edition select the radio button for AutoPIPE Standard In order to use AutoPIPE Advance, AutoPIPE Nuclear, AutoPIPE Nozzle, Stress-Iso Add On, KHK2 Add On, you should contact your Bentley On Site Admin for any User Check out restrictions on the Select Server, or contact Bentley licensing to have one or more of these other license add to your contract.   Troubleshooting If the applications has been installed, and all the steps above have been followed, complete the following procedure on the user computer: 1. Close all Bentley applications (AutoPIPE, License Management Tool, etc.. 2. Locate the license.db file on the computer and delete everything in the directory where this file exist (may need IT to located and delete files from this folder 3. Restart AutoPIPE accept any and all dialog screens until the application is fully opened with a License or into Demo Mode. 4. From within AutoPIPE, select Tools Setting License Management Tool and press F9 to send logs now. 5. Locate the licdebug.log  in the same folder from step #2, create a service request and send to us for review. See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Application Crashed - AutoPIPE

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"A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available." Program periodically freezes, toolbars disappear, and application crashes - AutoPIPE V8i 09.05.01.02 Bentley AutoPIPE is (NOT RESPONDING) The application has failed to start becuase of IEGLic.dll was not found "  Bentley AutoPIPE Application has stopped working "

Wiki Page: Bentley AutoPIPE has crashed

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: crashed Subarea: Original Author: Bentley Technical Support Group Problem: The following screen is displayed: Bentley AutoPIPE Application Bentley AutoPIPE Application has stopped working Windows can check online for a solution to the problem When did this occur: As the application was starting up / opening Opening a new model or existing model file Crashed When Viewing  Load Dynamic Analysis Dialog Screen     See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Crashed When starting AutoPIPE program

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Crashed Subarea: Original Author: Bentley Technical Support Group Problem: When starting the application, AutoPIPE crashed displaying the following: "Bentley AutoPIPE Application has stopped working..." How to avoid or fix it? Possible Solution #1: Make the splash screen reappear and select the "Show problem details" drop-down as shown below:   If the problem was releated to MSXMLCPP.DLL (as shown above), upon further investigation  "mfccpxm.dll" may be seen? If so, confirm version of MS Windows, has been updated with MSXML 4.0 Service Pack 2 (SP2). If not, removed old dll from win64 folder and re-installed the latest version of msxml sp4 sp2. Restart the computer and try to start AutoPIPE. See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Export Model to STAAD Using PipeLink (*.pipelink) command in AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: export Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers about exporting a file to STAAD using PipeLINK  Item #1, Question I have a question about the integration between AutoPIPE and STAAD.PRO software,can someone tell me if this is version dependent? Answer: Yes, it is version dependent to a degree. You must have installed AutoPIPE V8i 09.03.xx.xx and higher, in addition, you must have installed STAAD 2007 and higher as these are the version where the PIPELINK command was  first introduced. After that you can have any combinations of AutoPIPE to STAAD version as there is no feature requirements between the application versions.    See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Import and Export - AutoPIPE

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Topics under the heading should be based on: All translator and integration issues, including PipeLink, Caesar, OpenPlant, MDB, NTL etc.   What file formats can AutoPIPE Import/Export?   Import Issues: AutoPIPE CAD To Stress Integration ADLPipe Translator CAESAR (cii) or Areva PDMS (cii) PCF Translator STRAIT Translator AutoCAD DWG / DXF AutoPlant PXF Export from ProStructures to AutoPIPE Import AutoPIPE DAT model Insert Model From STAAD Using PipeLink Can AutoPIPE V8i Import / Export Bentley HAMMER loads? Import PlantSPACE (PSDS) model into AutoPIPE Export Issues: Export AutoPIPE Batch (NTL) Interface bewteen Projectwise and AutoPIPE AutoPLANT (PXF) - Geometry/Results AutoCAD (DXF) Caesar II neutral (*.cii) Isogen (*.pcf) JSpace Model (*.jsm) DGN Model (*.dgn) Export to LiCAD (*.txt) Input Database (*.mdb) Results Database (*.mdb) Nozzle Loads to AutoPIPE Nozzle Model to STAAD Using PipeLink (*.pipelink)  

Wiki Page: DNV Piping Code Calculation Issues in AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Calculations Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers about DNV piping code calculations in AutoPIPE Item #1, Question: The problem is: by calculating the Von Mises stress in a separate way, the result it is different respect to the automatically calculated ASD. Why? Answer:   The ASD check uses the literal equations presented in DNV-OS-F101. For each point, the combined bending moment M (comprising of in-plane and out-plan moments), and combined pipe wall force N (combined axial force at the location) are used for calculation of longitudinal stress. The hoop stress is also calculated as outlined in DNV-OS-F101. The above results are then combined to calculate the effective stress as per the equation provided. The results for the ASD check will be different from those of Von Mises tress calculation, which is calculated differently.     See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Non-linear Load Sequencing

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Analysis Subarea: Original Author: Bentley Technical Support Group Whenever a static analysis load set includes Gaps/Friction/Soil it is calculated using a non-linear analysis. As a non-linear analysis, individual load cases (i.e. Gr, T1, P1, E1, W1, etc..) are applied one at a time in a sequence. This specific sequence does affect the calculated combination results (see AutoPIPE online help for more details). For example, by default,  occasional load cases like Earthquake or Wind are analyzed after Pressure cases, that are applied after  Thermal loads, that are applied after the initial load case Gravity. Wind hitting the operating position of the piping may calculate different support loads than earthquake or wind loads calculated just after GR (wind hitting the ambient position of piping). When perfoming a nonlinear analysis, select Loads Static Analysis Sets and check boxes in the  "Non-Linear" columm or enable Gaps/Friction/Soil inside of an analysis set . To define all non-linear options, modify the analysis set, and check the option "Gaps/Friction/Soil", Click OK and the next screen appears, see online help for details on this dialog screen. For more complicated load sequence,  uncheck the "Use Default Sequence" box to modify the Load sequence and press OK button as shown below:            Attention: Please see the following AutoPIPE help section: Help Contents Search Tab enter " Understanding Load Sequencing " (include the quotes), press List Topics button, double click on the selected topic from the list provided to see more information select the hyper link for "Understanding Load Sequencing". Or open the PDF  file  directly from the AutoPIPE folder, search for "Load_Sequencing.pdf"  or "Non_Linear_Load_Sequencing.pdf". Additional Information: The Non-linear method is a sequence of applied load cases as defined on the initial states dialog (shown above). For example, non-code combination GT1P1E1, is analyzed by:  1.  First applying the Gravity weight load case to the system and calculating the deformation based on modeled restraints. 2.  Then the thermal expansion  load case (T1) is applied to the deformed model, and again a new deformation is calculated. 3.   Next, as shown in the Initial States screen shot above, Pressure load case (P1) is applied to the deformed model, and again a new deformation is calculated. 4.   Finally, as indicated above, occasional load case E1 is applied to the deformed model, and  the final deformation is calculated. In the output report only look at the operating conditions (i.e. GT1P1E1, GT1P1W1, etc..) and not the individual load cases (i.e. Gr, T1, E1.). The individual load case moments may be larger than than a gap support allows but when added in a combination the results are correct. . In 2009, ASME published that there are generally 3 methods used by most computer programs  for stress analysis, 2 of which "General Straightforward Approach" and "Algebraic Subtraction Approach"  (used by Caesar II) were found to produce inaccurate results. Only "Operating Condition Approach" used by programs like AutoPIPE, FE Pipe, Ansys, Abacus, Simplex II. that meets the code philosophy and requirements. Using AutoPIPE's method of loading sequences is much closer to reality and is used by the best known programs such as ANSYS finite element, FE -PIPE, ABAQUS, etc.    See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU! Gaps/Friction/Soil

Forum Post: ASME B31.3&31.8

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Dear all, I have a model with 2 piping codes: ASME B31.3 and ASME B31.8. Can I use ASME B31.3 piping material library for ASME B31.8 piping part? Second question is: why AutoPipe use as default tnom for sustain and occasional loads for ASME B31.8. Is it consistent with code requirements? And where I can found confirmation in standard? Thank you in advance!

Wiki Page: Modeling Approaches, Tips, Technique for Nozzle Piping Components in AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group Attention: Please see the following AutoPIPE help section: Help Contents Contents Tab Modeling Approaches Modeling Approaches This help has been provided in order to give users ideas for modeling typical piping arrangements. The steps shown in each example should not be taken as the only method available to create models. In addition, the intent of the examples is to present ways to create adequate models of specific piping components for analytical purposes.           Anchors        Bends           Cuts              Flexible Joints           Frames         Hangers           Nozzles        Pipes           Reducers      Rotating Equipment           Supports       Tees           Valves           Vessels Questions and Answer: Item #1: Modeling a Nozzle per WRC 297? Answer: The following fields of data are available when WRC 297 is selected as a Flexibility Method on a nozzle dialog screen: Enter in values for L1, L2, and Direction of vessel axis to calculate the nozzle flexibility. Copied from the On-line help: L1 = distance from the center of the nozzle to either vessel end or to the face of the nearest internal stiffening attachment (e.g., ring). L2 = Enter the distance to the other end of the vessel (or nearest internal stiffening attachment in that direction). Meaning, measuring from the center of the nozzle in one direction along the axis of the vessel to a point where the vessel end or vessel internal stiffener ring, enter the value as L1. Repeat the same measurment in the opposite direction along the vessel to a point where the vessel ends or vessel internal stiffener ring, enter the value as L2 ( note , L1 and L2 are interchangeable values with regards to the nozzle flexibility calculation, see online help "Nozzle Flexibility Calculations" for complete details).  Note : When looking at the Nozzle Stiffness values on the dialog screen be sure to read the dialog text " Nozzle stiffness (E6):". The (E6)  means that the value in the fields below are multiplied by E6, with the given units. Example, on the dialog screen Rad = 3.1223 lb /in, but in the output report it is printed as Krad=3122285.75 lb/in. Both values and units are correctly printed. Item #2: Questions: Can you provide more details on the Nozzle dialog fields, Length and Thcikness? Answer : From AutoPIPE online help: Length: Enter the length of the vessel shell wall. Nozzle length is not used in calculated the nozzle flexibility (which is really the vessel shell flexibility). The length defines a flexible joint to which the nozzle flexibilities (as calculated by AutoPIPE) are assigned. Vessel Radius/ Thickness: Enter the outside radius (or half the actual diameter) of the vessel and the thickness of the vessel wall in these two fields. For new user, there remains a lot of confusion around the Nozzle dialog entries for Thickness and Length. Simply put a nozzle element is modeled as a Flexible joint, as shown in the image below. The Nozzle Length field specifies to the program how long the flexible joint to be modeled will be (distance between A03 - A04). The Thickness value is used by the program in calculations to produce the respective nozzel stiffness values that will become input into the modeled flexible joint. Again, Length and Thickness are 2 different fields used for 2 different reasons; one modeling and the other calculations. Under most circumstances Length & Thickness will be the same. However, be carefull when entering these values, always look to see what units are being used. In English units, Length is entered in FT (mm) , where Thickness is entered in INCH (mm) .         See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Model Different Types of PIPING Components - AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group Attention: Please see the following AutoPIPE help section: Help Contents Contents Tab Modeling Approaches Modeling Approaches This help has been provided in order to give users ideas for modeling typical piping arrangements. The steps shown in each example should not be taken as the only method available to create models. In addition, the intent of the examples is to present ways to create adequate models of specific piping components for analytical purposes.           Anchors        Bends           Cuts              Flexible Joints           Frames         Hangers           Nozzles        Pipes           Reducers      Rotating Equipment           Supports       Tees           Valves           Vessels What are some addtional modeling approaches, tips and techniques for different types of piping components? PIpe Tees  and branch fittings (weldolet, sockolet, etc..) Flanges Bends Flexible Joints Reducers Valves Victaulic Couplings   Nozzle GrayLoc Connector    See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!

Wiki Page: Modeling Vessel / Nozzles in AutoPIPE

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Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group   The following section will contain questions and answers pertaining to modeling vessels and/or nozzles in AutoPIPE. ATTENTION: Please see the following AutoPIPE help section: Help Contents Contents Tab Modeling Approaches Modeling Approaches Vessel and Nozzle Item #1:  Could you please advise how to properly model a nozzle at the dished end. We have modeled using nozzle flexibilty option (using "spherical" in flexibility method) Length = head thickness. Then we triedwith the "user" input in the flexibility method using the stiffness values from the "spherical" option but the results are completely different between using "spherical" and "user" selection. Answer: As you already know the nozzle flexibilities calculated for a Spherical head are Radial and Bending stiffness of the nozzle, where  User flexibilities fields are Radial, Circumferential, and Longitudinal stiffness of the nozzle. In the background, AutoPIPE use flexible joint elements to model a nozzle. The stiffness calculations for Nozzles connected to cylindrical vessels are more sensitive to diameter of the pipe. The difference with your modeling is to be sure that the  Radial direction is the same for both User and Spherical stiffness's, and that Spherical Bending values/directions matches the User's Cir & Long values/directions. Consider the following, if you are using the flexibility method = User, what direction is Rad, Cir, Long  given global X, Y, & Z. In AutoPIPE a vessel is modeled as a pipe component. So the program does not know which direction a nozzle element Rad, Cir, Long is until you specify the direction of the vessel. Direction of vessel = Global Y, that means Long. is Global Y and Rad. & Cir are set to Global X or Z. Direction of vessel = Global X or Z, That mean Rad. is set to Global Y, Long. is set to Global X or Z and Cir is set to Global axis left over. Again, by defining  the nozzle element vessel direction, you are setting direction for Long and consequently Rad and Cir.  Item #2: What is the best method of evluating a nozzle load to see if they exceed manufacture stress requirement limits? Answer:   Insert a Reference Point to Evaluate Equipment Loads Use the Insert Xtra data Reference Node feature to define reference points to evaluate loads at vessels or rotating equipment. Works in either Global or local coordinate systems. So anytime the nozzle is at a skewed angle to the vessel and the allowable loads at the nozzle are given relative to the nozzle axis then use the local coordinate axis system. You can define multiple "Reference Points" at any point. HINT : Useful for evaluating in-line pump nozzles and manufacturer stated limits on vessels or equipment. Item #3:  How to model Vacuum Jacket on pipe connected to a Nozzle? Answer: Please see the following AutoPIPE help section: Help Contents Contents Tab Modeling Approaches Modeling Approaches Nozzles, Model 1: Cylindrical Vessel Surface. Using this model as a starting point, follow the instructions to model this example. Note, understand the modeling here, the flexible joint represents the wall thickness of the vessel. Therefore unless the vauccum jacketed pipie continues inside of the vessel, select Node point A03 as the starting point of the vacuum jacket. Select Pipe range from A00 to A03, Select Copy command / icon, Select Base point: A00 Besure the active point is A00 and select Paste command / icon,    Select Segment B, all. Modify  Pipe Properties Over Range PipeID =14"std, pipe OD = 14", press OK button o accept Note: Pipe segments are restrained by Pipe supports, Soil suports, etc... Pipe segments can  be overlapped with out warning. It is the user responsibility to review any interference with-in AutoPIPE or to export a model for clash detection by another program. Example, at this point select segment A, notice how it potruse through the pipe at the elbow locations. Select the large pipe elbows and change from Long radius to short radius. Next, in order to connect the larger jacket pipe to the smaller internal pipe, select node point A00, Insert Beam To Point J = B00, section Id = 0 - ridgid  Repeat step to connect Node point A03 to B03.  Add as any addtional node points for support spiders for the interanal pipe connected to the Jacketed pipe. Example: Select Node point A01, insert Run Dx = 3 ft, press OK button, creates node point A05 Select Node pont B01, insert Run Dx = 3 ft, press OK button, creates node point B04. To support the internal pipe (seg A) from the jacket pipe (seg B), select node point A05, Insert Support type =Vstop, Connected to point = B04   Vstop A05 is no supported by pipe node point B04. As B04 moves so does the support holding A05. See Jacketing piping WIKI page for more details on this topic.   Item #4: Modeling a Nozzle per WRC 297? Answer: The following fields of data are available when WRC 297 is selected as a Flexibility Method on a nozzle dialog screen: Enter in values for L1, L2, and Direction of vessel axis to calculate the nozzle flexibility. Copied from the On-line help: L1 = distance from the center of the nozzle to either vessel end or to the face of the nearest internal stiffening attachment (e.g., ring). L2 = Enter the distance to the other end of the vessel (or nearest internal stiffening attachment in that direction). Meaning, measuring from the center of the nozzle in one direction along the axis of the vessel to a point where the vessel end or vessel internal stiffener ring, enter the value as L1. Repeat the same measurment in the opposite direction along the vessel to a point where the vessel ends or vessel internal stiffener ring, enter the value as L2 (note, L1 and L2 are interchangeable values with regards to the nozzle flexibility calculation, see online help "Nozzle Flexibility Calculations" for complete details). Note: When looking at the Nozzle Stiffness values on the dialog screen be sure to read the dialog text "Nozzle stiffness (E6):". The (E6)  means that the value in the fields below are multiplied by E6, with the given units. Example, on the dialog screen Rad = 3.1223 lb /in, but in the output report it is printed as Krad=3122285.75 lb/in. Both values and units are correctly printed.   Item #5: Questions: Can you provide more details on the Nozzle dialog fields, Length and Thcikness? Answer : From AutoPIPE online help: Length: Enter the length of the vessel shell wall. Nozzle length is not used in calculated the nozzle flexibility (which is really the vessel shell flexibility). The length defines a flexible joint to which the nozzle flexibilities (as calculated by AutoPIPE) are assigned. Vessel Radius/ Thickness: Enter the outside radius (or half the actual diameter) of the vessel and the thickness of the vessel wall in these two fields. For new user, there remains a lot of confusion around the Nozzle dialog entries for Thickness and Length. Simply put a nozzle element is modeled as a Flexible joint, as shown in the image below. The Nozzle Length field specifies to the program how long the flexible joint to be modeled will be (distance between A03 - A04). The Thickness value is used by the program in calculations to produce the respective nozzel stiffness values that will become input into the modeled flexible joint. Again, Length and Thickness are 2 different fields used for 2 different reasons; one modeling and the other calculations. Under most circumstances Length & Thickness will be the same. However, be carefull when entering these values, always look to see what units are being used. In English units, Length is entered in FT (mm) , where Thickness is entered in INCH (mm) .     See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!
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