WANG Shuang-yong,DENG Hao,ZHOU Hai-bin.Comparative Study on Calculation Methods of Lateral Performance Parameters for Chuan-dou Style Wooden Frames[J].Chinese Journal of Wood Science and Technology,2022,36(04):63-69.
WANG Shuang-yong,DENG Hao,ZHOU Hai-bin.Comparative Study on Calculation Methods of Lateral Performance Parameters for Chuan-dou Style Wooden Frames[J].Chinese Journal of Wood Science and Technology,2022,36(04):63-69. DOI: 10.12326/j.2096-9694.2021096.
Comparative Study on Calculation Methods of Lateral Performance Parameters for Chuan-dou Style Wooden Frames
Lateral performance parameters such as the lateral-resisting capacity, the initial lateral-resisting stiffness, and the ductility coefficient are important indicators for evaluating the lateral performance of Chuan-dou style wooden frames. Based on the load-displacement curve of the monotonic loading test of Chuan-dou style wooden frame, the lateral performance parameters were calculated according to different codes and standards respectively. The specific definitions of the yield displacement and the ductility coefficient are not given in GB/T 37745—2019, While only were the initial lateral-resisting stiffness and lateral-resisting capacity of the structure calculated according to the definition in this standard. The results showed that the lateral-resisting capacity calculated by different standards was the same, and the initial lateral-resisting stiffness results were similar, however the ductility coefficients were significantly different. The initial lateral-resisting stiffness calculated according to GB/T 37745—2019 is lower than other methods. The ductility coefficient is greater than 4.0 using the calculation method specified in both JGJ/T 101—2015 and EN 12512:2005. The ductility coefficient is 2.5 when the calculation is following the method in ASTM E 2126-11. According to the force characteristics of Chuan-dou style wooden frame and the bilinear segment characteristics of the load-displacement curve, the methods specified in JGJ/T 101—2015 and EN 12512:2005 are applicable to the calculation of lateral performance parameters of Chuan-dou style wooden frame.
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