Creative Design of Earthquake Resistant Tall Building Structures and Bridge Structures
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Bibliographic Details
| Author(s): |
Peter Rosko
(Associate Professor, Vienna University of Technology, Center of Mechanics and Structural Dynamics, Vienna, Austria, Europe)
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| 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: | IABSE Congress Chicago 2008 | ||||
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| 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. |
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| Keywords: |
bridge optimization earthquake structure modal analysis stiffness dynamics tall building Topology mass density
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