Applies To
	Product(s):	STAAD.Pro
	Version(s):	All
	Environment:	N/A
	Area:	OpenSTAAD
	Subarea:	Analysis Result, Output
	Original Author:	Bentley Technical Support Group, Shreyanka Bhattacharjee

Problem Description:

How to extract only critical steel design ratio for steel member using OpenSTAAD (VBA and python)

Solution:

• GetMemberSteelDesignRatio is used to extract critical steel design ratio for a steel member. This method will return the results from the last parameter block for which the beam has been designed
• GetGroupEntityCountis used to get total number of entities in certain group
• GetGroupEntities is used to  get all entities in that group

Parameter for function GetGroupEntityCount:

[Input] GroupName:  Group string name

[Return Value] GroupEntityCount:  The total number of entities in specified group

Parameter for function GetGroupEntities:

[Input] GroupName:  Group string name

[Output] EntityList:  Entity number ID(s)

Parameter for function GetMemberSteelDesignRatio :

[Input] Member: Beam number ID

[Output] CriticalRatio: The critical steel design ratio

Sample VBA Syntax:

 communities.bentley.com/.../Extract-Critical-Design-Ratio.xlsm

Python script:

communities.bentley.com/.../GetMemberSteelDesignRatio.py

STAAD file:

communities.bentley.com/.../US_2D00_1-Plane-Frame-with-Steel-Design.STD