文献类型：期刊文献

中文题名：穿斗式纵向木构架抗震性能试验研究

英文题名：Experimental study of the seismic performance of Chuan-Dou-style longitudinal wooden frames

作者：郭婷[1] 杨娜[1] 周海宾[2] 王双永[2]

第一作者：郭婷

机构：[1]北京交通大学,北京100044;[2]中国林业科学研究院木材工业研究所,北京100091

年份：2021

卷号：54

期号：S01

起止页码：34-41

中文期刊名：土木工程学报

外文期刊名：China Civil Engineering Journal

收录：CSTPCD;;EI(收录号：20221011763158);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家重点研发计划(2018YFD0600303);国家自然科学基金(51778045,51878034);高等学校学科创新引智计划(B13002)

语种：中文

中文关键词：穿斗式木结构;纵向木构架;低周往复试验;抗震性能

外文关键词：Chuan-Dou-style wooden frames;longitudinal frame;low-frequency reversed cyclic loading;seismic performance

分类号：TU352.11;TU366.2

摘要：为了研究穿斗式木结构纵向木构架的抗震性能,并与横向木构架的抗震性能进行对比分析,依据黔东南地区穿斗式木结构的构造形式,设计并制作了单层两跨纵向木构架和横向木构架足尺模型,通过低周往复加载试验,研究了木构架模型的失效模式、滞回性能、刚度退化规律和延性等力学性能,基于骨架曲线特征提出了穿斗式木结构的双折线荷载-位移简化模型,从能量角度定量分析了纵向木构架的抗震机理。结果表明:纵向木构架的榫卯搭接节点在榫颈处发生断裂,为结构的薄弱环节;纵横向木构架均具有较好延性,但抗侧刚度较低,在水平荷载作用下易发生倾斜;柱脚抬升在穿斗式木结构抗震中发挥的作用较小,达到一定位移后,穿斗式木结构主要通过滞回耗能抵抗地震作用。
To study the seismic behavior of the longitudinal frames of Chuan-Dou-style wooden structures and compare it with trans verse frames,full-scale models of single-layer and two-span wooden frames were designed and manufactured according to structural construction guidelines in the Guizhou Province.The failure mode,hysteretic performance,stiffness degradation,and ductility of the frames were studied through low-frequency reversed cyclic loading tests.Based on the characteristics of the skeleton curve,a simplified double polyline load-displacement model of a Chuan-Dou-style wooden structure was proposed.The seismic mechanism was quantitaltively analyzed from the perspective of energy.The results show that the mortise and tenon lap joints of the longitudinal timber frame broke at the tenon neck,indicating that this connection is the weakest part of the structure.Both the longitudinal and transverse frames have good ductility but low lateral stiffness,which means that the frames easily tilt under lateral loads.The column base uplift of Chuan-Dou-style wooden structures plays a small role in resisting earthquakes.After reaching a certain displacement,a Chuan-Dou-style wooden structure primarily resists earthquake motions via hysteretic energy.