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.
Revision of Gen 2010
Note
1
When a number of elements are assigned a single Member, the Member number
retains the number of the element nearest to the i node. That element
then becomes the representative element. All design parameters for the
Member must be input corresponding to the most critical 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.