一种带消能节点的木框架结构振动台试验  

Shaking table test research on wooden-frame structure with energy dissipation joints

作　　者：赵淑颖[1] 周爱萍[1] 黄东升[1] 唐思远[2] 

机构地区：[1]南京林业大学土木工程学院,南京210037 [2]桂林电子科技大学,广西桂林541004

出　　处：《林业工程学报》2016年第2期124-129,共6页Journal of Forestry Engineering

基　　金：林业科学技术成果国家级推广项目([2015]21号);南京科技创新项目(2013创基090)

摘　　要：以在青海省玉树地震灾区建造的一座带消能节点的二层木框架结构示范民宅为工程背景,进行了1∶3缩尺比例模型的模拟地震振动台试验。通过试验,对模型结构的破坏形态、动力特性随地震输入的变化过程进行了研究,并根据相似关系推算出原型结构的动力特性及地震反应。试验结果表明：带消能节点的木框架结构具有良好的抗震性,能即在大震作用下,结构的破坏主要集中在消能节点的钢板上,而主要结构构件仍处于弹性工作状态,结构具有良好的延性和变形性能。该结构体系设计合理、施工简单,可以满足7~8度设防地区的抗震要求,是一种可用于乡镇民宅或灾后快速重建中推广的结构体系。On the basis of a demonstration two-floor wood-frame construction with energy dissipation joints made by steel in the earthquake-stricken region of Yushu,Qinghai Province,the shaking table test of 1 ∶3 scale model of wood-frame structure was performed. Test data were obtained in order to investigate the failure mode and dynamic characteristics of the scaled model in the condition of inputting the seismic waves. The actual dynamic performance of the construction could be figured out from the scaled model according to the similarity relation as well as the seismic performance of which could be evaluated according to the national norms. Test results indicate that the wood-frame with energy dissipation joints has good seismic performance. The main damage of structure is mainly on the energy dissipation joints,and the main structural components are still in the elastic working state. Also,the structure has good ductility and deformation properties after the strong earthquake excitation. The structure is reasonable and simple,which can meet the anti-seismic requirements for 7-8degree seismic fortification intensity region. The wood-frame construction with energy dissipation joints is worthy to be popularized in rural or post-disaster reconstruction areas.

关 键 词：木框架结构 消能节点 振动台试验 动力特性 地震反应 

分 类 号：S225.93[农业科学—农业机械化工程]