穿斗式木结构榫卯节点加固的抗震性能研究  

Study on Seismic Performance of Mortise-tenon Reinforcement Joints in Chuandou Style Timber Structure

作　　者：王双永[1] 郭婷[2] 邓昊[1] 周海宾[1] WANG Shuang-yong;GUO Ting;DENG Hao;ZHOU Hai-bin(Research Institute ofWood Industry,Chinese Academy of Forestry,Beijing 100091,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091 [2]北京交通大学土木建筑工程学院,北京100044

出　　处：《木材科学与技术》2021年第1期36-41,共6页Chinese Journal of Wood Science and Technology

基　　金：“十三五”国家重点研发计划“结构用木质材料制造及其在传统民居中的应用示范”(2018YFD0600303);山西省重点研发计划(社会发展)项目“晋系早期木构古建筑保护与修复关键技术研究”(201803D31048)。

摘　　要：选取西南民居常见穿斗式木结构典型的直榫型边节点,采用穿木销和穿钢销加固方案,通过单调和低周往复加载足尺试验,对比加固方法对直榫边节点抗震性能的影响。结果表明:相比未加固节点,两种加固节点的破坏程度均有所降低,且有效抑制拔榫现象;穿木销和穿钢销加固节点的初始刚度分别提高了50%和75%,屈服弯矩分别提高了45%和73%,极限弯矩分别提高了27%和69%,耗能能力分别提高了200%和69%。两种方法均有效提高了穿斗式木结构直榫边节点的抗震性能。In this study,the straight tenon-type edge joint was selected,which was the common typical joint in chuan-dou style timber structure of southwestern residential buildings in China.The reinforcement schemes were adopted,which including wood-pin and steel-pin.And the influence of two reinforcement methods on the seismic resistance of straight joints was compared,through the monotonic loading and lowcycle reversed loading full-scale tests.The results showed that the damage degree of the two reinforced joints were reduced,and could effectively inhibit the tenon pulling occurrences,compared with the unreinforced joints.Using wood-pin and steel-pin reinforcement,the initial stiffness of the joints was increased by 50%and 75%,the yield bending moment was increased by 45%and 73%,the moment-resisting capacity was increased by 27%and 69%,and the dissipated energy was increased by 200%and 69%,respectively.In conclusion,both methods effectively improved the seismic performance of mortise-tenon joints in chuandou style timber structure.

关 键 词：穿斗式木结构 直榫节点 加固 抗震性能 

分 类 号：S784[农业科学—林学] TU366.2[建筑科学—结构工程]