Applies To
Product(s):	AutoPIPE
Version(s):	ALL;
Area:	Modeling
Date Logged & Current Version	Oct. 2017 11.01.00.23

Problem:

How do I model large radius, back to back, bend piping using AutoPIPE?

Example:

Solution:

See Video below to learn modeling technique that will help you model any back to back bend piping configuration.

Notes: 

1. Select to increase the movie window above

2. Recall from earlier AutoPIPE trainings, node points are added to an existing segment by standing at a node point and insert Delta DX, Dy, DZ to the next point. Thus when  modeling 2 back to back bends. The closest distance between 2 bend TIP (Transition Intersect Point) cannot be any closer than the radius of the first bend plus the radius of the second bend ( or double the radius if both bends are exactly the same size component). See AutoPIPE examples below, and AutoPIPE help> modeling Approaches> Modeling Approaches> Bends> 180° Elbow)

Again, with this technique one can model the following shapes by simply changing the bend radius and location of node points. 

 

Example with step by step written instructions:

• • Begin new model and setup
  • Insert Anchor at Point A00
  • Insert > Run
    • Generate Points: 10
    • DZ: -15 ft
      
  • Active Point is A10
  • Insert > Ring 
    • Ring Orientation: 90 deg (to put the ring in the X/Z Plane)
    • DX: 286.62 (calculated using circ = 2*pi*r, assuming I want to insert a quarter of a circle totaling 450 ft length)
      
  • • Select Number of Angles and enter 120
    • Then Select Custom Angles and delete all of the entries after the 90 degree projection
    • Click Next
      
  • Active Point is A70
  • Insert > Ring 
    • Ring Orientation: 90 deg (to put the ring in the X/Z Plane)
    • DZ: -286.62 (calculated using circ = 2*pi*r, assuming I want to insert a quarter of a circle totaling 450 ft length)
    • Click Next
      
  • • The second screen should be set up correctly from the input before
    • Click Finish
  • Active Point is A130
  • Insert > Run
    • Generate Points: 10
    • Length: 15 ft
      
  • Insert Anchor at Point A140

   You will need to adjust this depending on your required geometry.  At this point you can place supports along the pipe.

 results: 

 

See Also

How Do I .....

Bentley AutoPIPE