Member Assignment

 

 

 

A single Member can be assigned when the member is consisted of a number of line elements (beam elements or truss elements).

 

 

 

From the Main Menu select Design > General Design Parameter > Member Assignment.

 

From the Menu tab of the Tree Menu select Design > General Design Parameter > Member Assignment.

 

 

 

 

Select the corresponding elements to be assigned as a member, and enter the following

 

Option

 

Add/Replace: A new Member can be defined or an existing Member can be revised.

 

Delete: Assigned members can be deleted. You may either select the Members to be deleted from the model window or the Element List window.

 

 

Member

 

Allow Single Element Member: Check on to permit a single element to be assigned as a member.  

 

Assign Type

 

Manual: The User defines Members directly.

 

Automatic: The program defines Members automatically.

 

Selection Type

 

All: All is selected if all the elements are to be assigned Members. This becomes activated if Automatic is selected in Assign Type.

 

By Selection: A Member is assigned to selected elements.

 

 : Selected elements are assigned a Member.

 

 : Input Dialog Bar is closed.

 

Note 1
When a number of elements are assigned a single Member, the Member number retains the smallest element number. That element then becomes the representative element. All design parameters for the Member must be input for the representative element.

 

Note 2
If the elements to be assigned a Member retain different material and section properties, or the directions of the node connections are different, a Member can not be assigned.

 

Note 3
The design parameters, Effective Length Factor (K), Equivalent Moment correction Factor (Cm), Moment Magnifier (B1/¥äb,B2/¥äs) and Limiting Slenderness Ratio are taken from the representative element, and Unbraced Length (L,Lb) is taken from each element.