Eigen analysis of a two-story shear frame
Example Provided by: Vesna Terzic, UC Berkeley
This example demonstrates how to perform eigenvalue analysis and plot mode shapes. Two-storey shear frame (Example 9.1a from "Dynamic of Structures" book by Professor Anil K. Chopra) is used for this purpose. Geometry and material characteristics of the frame structure are shown in Figure 1. Node and element numbering is given in Figure 2.
To execute this ananlysis in OpenSees download this file: EigenAnal_twoStoreyShearFrame.tcl
To run the analysis, the user can type "source EigenAnal_twoStoreyShearFrame2.tcl" into the interpreter of the OpenSees.exe application .