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Effects of timber infill walls on the seismic behavior of traditional Chinese timber frames

Earthquake Engineering and Engineering Vibration 2022年第4期21卷 999-1018页

作者： Xie Qifang Zhang Baozhuang Li Shengying Wu Fanfan Yang Huifeng Key Laboratory of Earthquake Engineering and Engineering Vibration Institute of Engineering MechanicsChina Earthquake AdministrationHarbin 150080China School of Civil Engineering Xi’an University of Architecture and TechnologyXi′an 710055China China Coal Xi′an Design Engineering Co. Ltd.Xi′an 710055China College of Civil Engineering Nanjing Tech UniversityNanjing 211816China

This study investigates the enhanced effect of timber infill walls on the seismic behavior of traditional Chinese timber *** 1/2 scaled traditional Chinese timber infill walls(TIWs),two 1/2 scaled timber frames with timber infill walls(TFTIWs)and one 1/2 scaled timber frame(TF)were fabricated and tested under low-cyclic reversed *** failure modes,strength,stiffness,and energy consumption capacity of the TIWs and the TFTIWs were obtained,and the effects of the TIWs on the seismic performance of the TFTIWs were *** results showed that the TIWs can increase the stiffness and ultimate bearing capacity of the TF,up to 60%and 80%,*** strength degradation coefficient of the TFTIWs was slightly higher than that of the TF when the inter-story drift ratio exceeded 0.02 rad,and the TIWs helped to mitigate the strength degradation of the *** was also found that the TFTIWs had a higher cumulative energy dissipation when compared with the TF(up to a 60%increase),indicating the TIWs had reasonably good energy dissipation *** the TIWs generated a solid contribution to the carrying capacity and energy dissipation of the TF,the lateral drift thresholds were 1/100 and 1/43 of the column height,***,the TIWs and TFTIWs presented a good ductility,and the TIW could effectively reduce the pull-out amount of the tenon from the mortise of the TF;however,the TIWs had little influence on the stiffness degradation level or improvement of the ductility of the TF.

关键词： traditional Chinese timber frame timber infill wall mortise-tenon joint cyclic loading test seismic behavior

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