01. Is there any way to confirm and modify the Bend and Tee flexibility factors calculated by AutoPI


Applies To
Product(s):AutoPIPE
Version(s):ALL;
Environment: N/A
Area: Report
Original Author:Bentley Technical Support Group
Date Logged
& Current Version
April. 2017
11.00.00.22

Problem:

is there any way to confirm and modify the Bend flexibility factors calculated by AutoPIPE?

Solution:

Yes and No.

Open the model in AutoPIPE, select Tools> Model Input listing> check all sub reports ON and press OK button to create a complete Model Input Listing report. After the report is displayed, scroll down to the Bend sub report and noticed the flexibility values calculated by the program are displayed in a column called Flexibility (k) for each bend point in the model:

  

How to change Flexibility value? (2 options):

1. Open the model input grids, select the Bend tab to change the bend flexibility values as needed:

2. Open Bend dialog and change the bend flexibility values as needed:

 

Bentley apologizes for the inconvenience, but at this time (AutoPIPE CONNECT 11.xx and lower) does not have the ability to view or modify the flexibility factor for a Tee type connection. According to some piping codes, B31.1 and B31.3, APPENDIX D, for most tee configurations the flexibility factor = 1.0 (please review the code). 

Workaround, apply  a user defined SIF at the TEE that takes into consideration a user defined flexibility factor for a Tee.

See Also

"Bend" - Model Input listing sub-report

Bentley AutoPIPE