Thesis
Numerical investigation of seismic isolation for tall CLT buildings
Washington State University
Master of Science (MS), Washington State University
2014
Handle:
https://hdl.handle.net/2376/100158
Abstract
The increasing concern for structure resiliency in seismic regions has brought up the need for new innovative isolation systems to reduce the accelerations in upper stories and protect the structure from significant damage. The objective of this thesis is to study different configurations of seismic isolation; their effects compare to a non-isolated model are evaluated. The isolators are springs and dampers that connect the stories together. Isolate the first story from the rest of the building has the most impact in reducing the force demands on the structure. Isolate more stories mostly increase the natural period of the building and lower the force demands in the isolators. The stiffness and damping coefficient of the isolators are also estimated. Skyscrapers are usually complex to model and require significant computational effort. To be able to compare several configurations, it is necessary to have a model that can be run in a short time but with a reasonable accuracy. A modeling technique that uses ABAQUS V6 (2011)'s substructuring tool to compare different isolation systems with a reasonable computational effort is presented. A time-history analysis of a linear 10-story model during a 20 second event can be computed in less than 8 hours
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Details
- Title
- Numerical investigation of seismic isolation for tall CLT buildings
- Creators
- Vincent Bordry
- Contributors
- James D. Dolan (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900524875501842
- Language
- English
- Resource Type
- Thesis