TR.23.1 Member Truss Specification
This command may be used to model a specified set of members as TRUSS members.
This specification may be used to specify TRUSS type members in a PLANE, SPACE or FLOOR structure. The TRUSS members are capable of carrying only axial forces. Typically, bracing members in a PLANE or SPACE frame will be of this nature.
member-list (TENSION f1)
|TENSION f1||optional initial tension in the truss member, in current units|
This command is superfluous when a TRUSS type structure has already been specified using the command STAAD TRUSS.
- The TRUSS member has only one degree of freedom-the axial deformation. Note also that Member Releases are not allowed. Selfweight and transverse loads may induce shear/moment distributions in the member.
- Member loads are lumped at each end, whereas a frame member with moment releases only retains the axial component of the applied member load.