砖填充墙榫卯节点木框架抗震性能试验研究
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摘要
对传统木结构典型的榫卯节点木框架和砖填充墙榫卯节点木框架的低周反复抗震性能进行了对比试验。在试验基础上对比分析了两个试件的破坏模式、滞回曲线、骨架曲线、刚度退化曲线、耗能能力和应变变化。研究表明,砖填充墙榫卯节点木框架正向推时的抗侧承载力、刚度和耗能能力显著提高,反向拉时与对比木框架基本相当;对砖填充墙榫卯节点木框架进行抗震鉴定和加固时,应考虑砖填充墙的影响。
Comparison tests on low cyclic reversed seismic performance of the typical mortise-tenon joint wood frame and the mortise-tenon joint wood frame with brick masonry infilled wall of traditional wood structures were carried out. The failure mode,hysteresis loop,skeleton curve,stiffness degeneration curve,energy dissipation capacity and strain change of the two specimens were analyzed based on the tests. The test results show that the mortise-tenon joint wood frame with brick masonry infilled wall has higher lateral load carrying capacity,stiffness and energy dissipation capacity are better than those of the comparison wood frame when the push force is loaded,but the capacity is similar when the pull force is loaded. The seismic evaluation and strengthening of the mortise-tenon joint wood frame with brick masonry infilled wall should take the effect of brick masonry infilled wall into consideration.
Comparison tests on low cyclic reversed seismic performance of the typical mortise-tenon joint wood frame and the mortise-tenon joint wood frame with brick masonry infilled wall of traditional wood structures were carried out. The failure mode,hysteresis loop,skeleton curve,stiffness degeneration curve,energy dissipation capacity and strain change of the two specimens were analyzed based on the tests. The test results show that the mortise-tenon joint wood frame with brick masonry infilled wall has higher lateral load carrying capacity,stiffness and energy dissipation capacity are better than those of the comparison wood frame when the push force is loaded,but the capacity is similar when the pull force is loaded. The seismic evaluation and strengthening of the mortise-tenon joint wood frame with brick masonry infilled wall should take the effect of brick masonry infilled wall into consideration.
引文
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[2]刘义平,鞠风雨,华丽萍.地震区砖填充墙框架设计[J].结构工程师,1991,7(2):20-23.
[3]周乾,闫维明,关宏志,等.古建嵌固墙体对木架构抗震性能的影响分析——以太和殿为例[J].四川大学学报:工程科学版,2014,46(1):81-86.
[4]周乾,闫维明,纪金豹.含嵌固墙体古建筑木结构震害数值模拟研究[J].建筑结构,2010,40(1):100-103.
[5]李小伟.古建筑双跨木结构抗震性能研究[D].西安:长安大学,2009.
[6]GB/T 1935—2009木材顺纹抗压强度试验方法[S].北京:中国标准出版社,2009.
[7]GB/T 1936.2—2009木材抗弯弹性模量测定方法[S].北京:中国标准出版社,2009.
[8]GB/T 1933—2009木材密度测定方法[S].北京:中国标准出版社,2009.
[9]GB/T 1931—2009木材含水率测定方法[S].北京:中国标准出版社,2009.
[10]卢文胜,李斌,曹文清,等.结构低周反复加载试验方法浅谈[J].结构工程师,2011,27(S1):15-20.
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