Pin‐supported walls for enhancing the seismic performance of building structures |
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| Authors: | Zhe Qu Akira Wada Shojiro Motoyui Hiroyasu Sakata Shoichi Kishiki |
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| Institution: | 1. Tokyo Institute of Technology, Structural Engineering Research Center, , Yokohama, Japan;2. Tokyo Institute of Technology, Department of Built Environment, , Yokohama, Japan |
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| Abstract: | An application of a pin‐supported wall‐frame system in retrofitting an eleven‐story steel reinforced concrete frame is introduced. The retrofit aims at enhancing integrity and avoiding weak story failure in an existing moment‐resisting frame. Seismic performance of the building before and after the retrofit is assessed through nonlinear dynamic analysis. The results show that the pin‐supported walls are effective in controlling the deformation pattern of the ductile frame and hence in avoiding weak story failure. With the well‐controlled deformation pattern, carefully arranged energy dissipating devices are able to concentrate energy dissipations so that damage to the rest of the structure can be significantly reduced. Copyright © 2012 John Wiley & Sons, Ltd. |
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| Keywords: | moment‐resisting frame pin‐supported wall integrity steel damper dual system |
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