advanced time history

IES VisualAnalysis VisualAnalysis Tutorial: Time History Analysis 10/26/10 1 Time History Analysis Project Description: This example will use the following frame to demonstrate a ground displacement time history analysis. Frame Geometry Version Note: This tutorial was created using a prior version of VisualAnalysis. Minor changes to the software may ha ve occurred including new features and graphics updates. The appearance of dialog boxes and the Project Manager may be altered slightly. Consult available Web training Videos (http://www.iesweb.com/training/index.htm ) or the User’s Guide (http://www.iesweb.com/products/visualanalysis/help/ ) if steps do not appear correct. Modeling the Structure Create the model shown in the above diagram. The beams and the columns are all W24x94 and the column bases are fixed. After you have modeled the basic geometry , select all the members and split them into 5 equal segments. We also need to add some extra mass to t his frame before we set up the time h istory case. Where the interior columns cross the beams, we need to add translational mass of 3500 K t o each of the four nodes. You can add mass to a node in the Modify Tab when nodes are selected. Similarly, specify a translational mass of 1750 K to the 4 nodes where the exterior columns cross the beams. Do this on both exterior columns for a total of 8 nodes. FEATURES: Split Members Nodal Mass Time History Load Case Result Validation

advanced time history

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