Applies To
	Product(s):	AutoPIPE
	Version(s):	2004, XM, V8i, CONNECT;
	Environment:	N/A
	Area:	Modeling
	Subarea:
	Original Author:	Bentley Technical Support Group
	Date Logged & Current Version	Apr. 2016 10.01.00.05

Problem:

How to model a Hanger flange in AutoPIPE?

Solution:

Hanger flanges are considered to be bolted to a structure.

Modeling approach:

A. On the segment where the flange is to be modeled, insert a node point (ex. B04)  to represent the welded connection between the pipe and flange

B. Insert a Pipe run half the total length of the Hanger flange (ex. B05).

C. Insert another Pipe run with the same length as in Step B above (ex. B06).

D. Select the middle point of the flange (ex. B05) as the active point and insert a flange component. On the flange dialog, change Joint End Type = "User Defined", set "Joint SIF" = 1.0 (note: can use any joint end type connection so long as the SIF calculated is 1.0 at the flange point)

E. Select both pipe runs (ex. B04-B05 & B05-B06), press Insert > Rigid options over Range (Include Weight = off, Include Thermal Expansion = off...pipe will be shown purple), and press OK button

F. Select both flange end points (ex. B04 & B06), Press Insert > Xtra Data> Joint Type user SIF. Select the correct type of end connection or enter a user SIF.

G. Connection to support: choose one of the following, model connection as simple supports or model with beam elements

    Note:

i. Model connection as simple support: Insert AutoPIPE supports as need at the flange center point (ex. B05).

ii. Model connection with beams: Insert rigid beam elements from the flange center (ex. B05) to the actual bolted support connection (ex Sq beam). Add additional beams with the correct beam properties from the bolted support connection to the support structure that is correctly supported (ex. Angle beams).

See Also

Flange Piping Components - Modeling Approaches, Tips, Techniques

Bentley AutoPIPE

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

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