PLAXIS 3D Tutorial 09: Free vibration and earthquake analysis of a building


Application PLAXIS 3D
Version Latest version

This example demonstrates the natural frequency of a long five-story building when subjected to free vibration and earthquake loading.

The building consists of 5 floors and a basement. It is 10 m wide and 17 m high including the basement. The total height from the ground level is 5 x 3 m = 15 m and the basement is 2 m deep. A value of 5 kN/m2 is taken as the weight of the floors and the walls. The building is constructed on a clay layer of 15 m depth underlayed by a deep sand layer. In the model, 25 m of the sand layer will be considered.

This exercise requires a PLAXIS 3D Ultimate license for transient groundwater flow calculations.

The provided *.p3dlog file contains all the commands to generate the model. With a Bentley Geotechnical SELECT Entitlement [GSE] license, you can use the link to save as the file (remove the extension .txt) and with the  Commands runner open to execute all commands in one go, see also this instruction.

 

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