*SetBeam() - arbitrary cross section symmetric pair

Sets the properties of a symmetric beam pair with arbitrary cross section.

Syntax

*SetBeam(beam_name,     LEFT|RIGHT, ARBITRARY, 
                                  len|AUTO_LENGTH,
                                  E,          G,         area, 
                                  ixx,        iyy,       izz, 
                                  asy,        asz, 
                                  CRATIO,     ratio)

Arguments

beam_name
The variable name of an existing beam pair.
Data type: varname
LEFT RIGHT
If LEFT is specified, the properties are assigned to the left beam, and the right beam properties are made symmetric to the left beam.
If RIGHT is specified, the properties are assigned to the right beam, and the left beam properties are made symmetric to the right beam.
ARBITRARY
This argument indicates cross section of the beam is arbitrary.
len
len specifies the undeformed length of the beam.
Data type: real
AUTO_LENGTH
AUTO_LENGTH indicates that the undeformed length of the beam is calculated automatically using the end points of the beam.
E
The Young's modulus of elasticity.
Data type: real
G
The shear modulus of elasticity.
Data type: real
area
Area of the beam's cross section.
Data type: real
ixx
Polar moment of inertia of the beam cross section.
Data type: real
iyy
Second moment of inertia of the beam cross section bout the Y axis.
Data type: real
izz
Second moment of inertia of the beam cross section about the Z axis.
Data type: real
asy
The correction factor for the shear deflection along the Y axis of the beam.
Data type: real
asz
The correction factor for the shear deflection along the Z axis of the beam.
Data type: real
CRATIO
This argument indicates that the structural damping matrix is a ratio of the stiffness matrix.
ratio
Ratio for calculating the damping matrix.
Data type: real

Example

*SetBeam(bm1, LEFT, ARBITRARY, 
 1000, 200000, 75000
 100, 1000, 100000, 200000, 
 
 0, 
 0, 
 CRATIO, 
3.0)

Context

*BeginMdl()

*DefineAnalysis()

*DefineSystem()