[1]薛建阳,夏海伦,李义柱,等.不同松动程度下古建筑透榫节点抗震性能试验研究[J].西安建筑科技大学学报(自然科学版),2017,(04):463-469,477.[doi:10.15986/j.1006-7930.2017.04.001]
 XUE Jianyang,XIA Hailun,LI Yizhu,et al.Experimental study on seismic behavior of penetrated mortise-tenon joints under different degree of looseness in ancient buildings[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,(04):463-469,477.[doi:10.15986/j.1006-7930.2017.04.001]
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不同松动程度下古建筑透榫节点抗震性能试验研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年04期
页码:
463-469,477
栏目:
出版日期:
2017-09-10

文章信息/Info

Title:
Experimental study on seismic behavior of penetrated mortise-tenon joints under different degree of looseness in ancient buildings
文章编号:
1006-7930(2017)04-0463-07
作者:
薛建阳夏海伦李义柱代武强
(西安建筑科技大学 土木工程学院,陕西 西安 710055 )
Author(s):
XUE Jianyang XIA Hailun LI Yizhu DAI Wuqiang
(School of Civil Engineering, Xian Univ. of Arch . & Tech ., Xian 710055, China)
关键词:
古建筑木结构透榫节点松动拟静力试验抗震性能
Keywords:
ancient wooden building penetrated mortise -tenon joint looseness quasi-static test seismic behavior
分类号:
TU366.2
DOI:
10.15986/j.1006-7930.2017.04.001
文献标志码:
A
摘要:
现存古建筑木结构中均存在不同程度的残损,榫卯节点的松动属于其中典型的一种.为研究不同程度的节点松动对透榫节点的抗震性能影响,参照清《工程做法则例》以1∶3.2缩尺比,制作了6个透榫节点模型,其中1个完好节点和5个不同松动程度节点.通过低周往复加载试验,得到了完好节点与不同松动程度节点的破坏形态、弯矩-转角滞回曲线与骨架曲线、强度与刚度退化曲线、变形及耗能能力等力学性能.结果表明:透榫节点榫颈截面处木材纤维拉断,出现裂缝并斜向榫头端部延伸,发生弯曲破坏;各节点滞回曲线形状均由S形过渡到Z形,且随着松动程度增大,捏拢效应越明显;松动节点的转动弯矩、刚度和耗能能力均比完好节点低,且随着松动程度增大不断降低;各个节点的变形能力均较好,但松动节点的极限转角要大于完好节点,并随节点松动程度的增大而增大
Abstract:
Different degrees of damage exist in ancient wooden building, in which the looseness of mortise -tenon joints is typical . In order to study the influence of looseness with different degrees on the seismic performance of penetrated mortise -tenon joints ,six 1:3.2 scale penetrated mortise-tenon joints models that are made complying with Engineering Fabrication Methods of Qing Dynasty were tested under low -cycle reversed loading. One of these joints is complete ,while the other 5 have defects of different degrees of looseness. The behaviors of joints such as the failure characteristics, hysteretic loops and skeleton curve, degradation of rigidity and energy dissipation capacity were studied . The results indicate that the wood fiber at the bottom of the tenon is snapped and the crack extends to the other end . The shape of hysteretic loops of all joints transfers from S shape to Z shape and the gathering effect becomes more obvious with the increase of loose degree . The rotation capacity, stiffness and energy dissipation capacity of the loose joints are lower than the intact one significantly and reduce gradually as the loose degree increases . Each joint exhibits good deformation performance . The ultimate rotation of the loose joints are higher than the intact one and increase gradually as the loose degree increases .

参考文献/References:

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-09-14修改稿日期:2017-07-15
基金项目:国家自然科学基金(51678478);国家“十二五”科技支撑计划(2013BAK01B03-02);陕西省科学技术研究发展计划(2013KW23-01)
第一作者:薛建阳(1970-),男,工学博士,教授,主要从事钢与混凝土组合结构及古建筑结构抗震研究.E-mail:jianyang_xue@163.com
更新日期/Last Update: 2017-09-11