Effective Length le for Compression Members - ANSI/AWC NDS

Use this dialog to define the buckling effective length of compression members.

Access

• If the member is a cantilever, select the Cantilever option in the Member Definitions - Parameters dialog.
• Click Effective length ley or Effective length lez.

Dialog elements

Define your own buckling length coefficient by selecting the appropriate value for one of the available buckling modes.

Note: The elements available in this dialog are different depending if the member is a cantilever or not.

Buckling modes for non-cantilever members

	Both ends fixed.
	Bottom end fixed - Top end pinned.
	Bottom end fixed - Top end free translation.
	Both ends pinned.
	Bottom end pinned - Top end free translation.
	User defined length.
	Lateral bracings.

Buckling modes for Cantilevers

	Cantilever - Bottom end fixed - Top end free.
	User defined length.
	Lateral bracings.

Note: To set up lateral bracings, select le = (le1, le2, ...), and then click Lateral Bracings to open the Internal bracings dialog.