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Appl. Sci. 2017, 7(6), 593; doi:10.3390/app7060593

Shake Table Test for the Collapse Investigation of a Typical Multi-Story Reinforced Concrete Frame Structure in the Meizoseismal Area

School of Civil Engineering, Qingdao University of Technology, No.11 Fushun Road, Shibei District, Qingdao 266033, China
These authors contributed equally to this work.
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Authors to whom correspondence should be addressed.
Academic Editor: César M. A. Vasques
Received: 27 March 2017 / Revised: 30 May 2017 / Accepted: 3 June 2017 / Published: 8 June 2017

Abstract

According to statistics from past earthquakes, it is observed that multi-story reinforced concrete (RC) frames represent a large proportion of the structural failures or collapses in seismic events. Hence, research on seismic collapse mechanisms and risks of RC frame structures subjected to extreme earthquakes is of foremost importance. Both experimental and numerical studies have been substantially carried out in this field. In order to represent an actual process of structural damage in an actual seismic event and provide a calibration test for numerical studies, a shake table collapse test of a typical multi-story RC frame structural model, which is scaled from a nearly collapsed building in the 2010 Ms 7.1 Yushu earthquake in China, was performed. Both the test and earthquake field investigation indicate that severe damage mainly occurred at the column ends. As dual structural systems, i.e., systems combining frames and additional members that mainly carry seismic loading, could be a better way to solve the unexpected damage mechanism of RC frames, a practical stiffness iteration design method based on the nonlinear static analysis to obtain the optimal stiffness demanding of the lateral load-resisting members in each story is proposed. This approach aims to control the structural deformation pattern along the height. The outcome of this study provides some intrinsic understanding of the inherent collapse mechanisms of similar RC frames during strong earthquakes. It also offers a practical design method to improve the seismic collapse resistance of RC frames. View Full-Text
Keywords: reinforced concrete (RC) frames; structural collapse; seismic design; failure mode; shake table test reinforced concrete (RC) frames; structural collapse; seismic design; failure mode; shake table test
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MDPI and ACS Style

Xu, W.; Yang, W.; Zhang, C.; Yu, D. Shake Table Test for the Collapse Investigation of a Typical Multi-Story Reinforced Concrete Frame Structure in the Meizoseismal Area. Appl. Sci. 2017, 7, 593.

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