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Shaking table test on a typical brick-timber structure model in rural areas of Beijing

WANG Mansheng1,YANG Wei1,CHEN Yu 1,JI Xiaodong2,ZHAO Zuozhou2,QIAN Jiaru2(1.Beijing Institute of Real Estate Science and Technology,Beijing 100021,China;2.Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering,Tsinghua University,Beijing 100084 China)  
In order to investigate the seismic resistant capacity of typical brick-timber structures in rural areas of Beijing,a 2/3 scaled typical brick-timber structure model with timber columns,wood roof and brick peripheral walls was designed and tested on a shaking table,which is a single-story brick-timber structure with three bays.According to the national seismic design code GB50011,the seismic precautionary intensity is 8 for most rural areas in Beijing.Different dynamic base excitation levels,such as design small earthquake with PGA=0.072g,design middle earthquake with PGA=0.2g and great earthquake with PGA=0.4g respectively,were input to the model.Dynamic responses and cracking characteristics on the brick walls were recorded.Based on the test results,the seismic resistant capacity of the model was obtained and analyzed.It was found that due to different lateral resisting stiffness of the front wall and the back wall for different door or window openings,the response of the front wall was far greater than that of the back wall in the longitudinal direction.This leads to out plan flexure of the end brick wall,some key technologies for how to strengthen and retrofit the existing rural brick-timber structure in Beijing are pointed out.
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