Example: 2D-Frame dynamic analysis

In case of this 2D-Frame dynamic analysis example, the distributed load applied in X-direction is automatically converted into 2x2 nodal loads in X- and Z-directions like:

 

2D-Frame dynamic analysis example

 

Available Eigen forms for this example:

 

Eigen forms

 

1) A castellated H-shape HE320A/465 at certain position has a cross section area from 1,1042e-02 m² and density 78.50 kN/m³ , which result is a distributed load value of 0.87 kN/m.

 

2) The member mass center is calculated as:

 

Member mass center

 

Distance value is distance between two adjacent member nodes.

 

3) The nodal load for each node is calculated by formula:   

 

qk * distance/2 = 0.87*6/2 = 2.61 (kN)

 

where:

qk - distributed load value [kN/m]