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Creative Design of Earthquake Resistant Tall Building Structures and Bridge Structures

 Creative Design of Earthquake Resistant Tall Building Structures and Bridge Structures
Author(s):
Presented at 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008, published in , pp. 634-635
DOI: 10.2749/222137908796294289
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The design concept of earthquake-resistant structures is presented. The response of the structure under dynamic loading is interpreted on the base of modal analysis. Some modes are not dangerous ...
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Bibliographic Details

Author(s): (Associate Professor, Vienna University of Technology, Center of Mechanics and Structural Dynamics, Vienna, Austria, Europe)
Medium: conference paper
Language(s): English
Conference: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008
Published in:
Page(s): 634-635 Total no. of pages: 8
Page(s): 634-635
Total no. of pages: 8
Year: 2008
DOI: 10.2749/222137908796294289
Abstract:

The design concept of earthquake-resistant structures is presented. The response of the structure under dynamic loading is interpreted on the base of modal analysis. Some modes are not dangerous for the safety of the structure and it is advantageous, when the big portion of the input energy is related to these modes. Modal shapes are connected to stiffness- and mass-distribution of the structure. The main idea is to optimize the stiffness- and mass-distribution in the structure considering the desired mode shapes. The structural topology optimization is applied. Mathematical tools of the optimization are sensitivity analysis and evolutionary procedures. Useful applications are shown in examples of tall building structures and bridge structures.

Keywords:
bridge optimization earthquake structure modal analysis stiffness dynamics tall building Topology mass density