STUDY ON HYSTERETIC BEHAVIOR OF MORTISE-TENON JOINTS OF RUBBER REINFORCED WOODEN STRUCTURES
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摘要: 地震作用下,穿斗式木结构中榫卯节点由于自身构造特性,榫头和卯口产生相对转动,相互挤压以至节点松动,导致承载能力减弱。采用橡胶块对透榫节点区域进行加固,通过结构矩阵推导得到其刚度矩阵方程,从理论上近似得到加固效果,并对比分析数值模拟结果和往复荷载试验结果,得到橡胶加固节点的滞回性能。结果表明:该加固方法可以有效地利用橡胶良好的弹塑性性能,阻碍柱枋相对转动和滑移,延长榫卯节点的工作状态;橡胶变形提高了节点耗能能力和滞回性能。Abstract: Under the seismic action, due to the features of the mortise-tenon joint of tenon-through style wooden structures, the relative rotation may be produced between the mortise and tenon, and the mutual extruding between the mortise and tenon will loosen the joint, as a result, the bearing capacity will decrease. The stiffness matrix equation of the tenon-through joint area reinforced by rubber pieces was derived by structure matrix, theoretically, the reinforcement effect was approximately obtained, the results of the quasi-static loading experiment and numerical simulation were compared, the hysteretic behavior of the rubber reinforced joint was obtained. The results showed that the reinforcement method could effectively utilize the good elastic-plastic properties of rubber, limit the relative rotation of columns, prolong the working status of mortise-tenon joint; the deformation of rubber could improve the energy dissipation capacity and hysteretic behavior of the joints.
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[1] 丁磊, 王志骞, 俞茂宏.西安鼓楼木结构的动力特性及地震反应分析[J]. 西安交通大学学报, 2003(9):986-988. [2] 周乾.紫禁城古建筑的传统防震方法[J]. 工业建筑, 2019, 49(6):210-217. [3] 陆伟东, 邓大利.木结构榫卯节点抗震性能及其加固试验研究[J]. 地震工程与工程振动, 2012, 32(3):109-116. [4] 陆伟东, 居兴鹏, 邓大利.村镇典型木结构榫卯及木构架抗震性能试验研究[J]. 工程抗震与加固改造, 2012, 34(3):82-85. [5] VILLAR J R, GUAITA M, VIDAL P, et al. Analysis of the Stress State at the Cogging Joint in Timber Structures[J]. Biosyst Eng, 2007(1):79-90. [6] SEO J M, CHOI I K, LEE J R. Static and Cyclic Behavior of Wooden Frames with Tenon Joints Under Lateral Load[J]. Journal of Structural Engineering, 1999, 125(3):344-349. [7] 汤虎, 李建中, 邵长宇.板式橡胶支座梁桥横向抗震加固研究[J]. 地震工程与工程振动, 2016, 36(4):33-41. [8] 葛鸿鹏.中国古代木结构建筑榫卯加固抗震试验研究[D].西安:西安建筑科技大学, 2005. [9] 薛建阳, 任国旗, 许丹, 等.传统民居穿斗式木结构栓榫节点抗震性能试验研究[J]. 建筑结构学报, 2019, 40(10):158-167. [10] 方东平, 俞茂宏, 宫本裕, 等.木结构古建筑结构特性的计算研究[J]. 工程力学, 2001(1):137-144. [11] 俞茂宏.统一强度理论新体系[M]. 西安:西安交通大学出版社, 2000. [12] 罗勇.古建木结构建筑榫卯及构架力学性能与抗震研究[D].西安:西安建筑科技大学, 2006. [13] 王丽宇, 鹿振友, 申世杰.白桦材12个弹性常数的研究[J]. 北京林业大学学报, 2003, 25(6):64-67. [14] 杨娜, 王阳, 秦术杰.考虑损伤的殿堂式古建木构整体有限元分析[J]. 北京交通大学学报, 2015, 39(1):40-44, 51. [15] 刘萌, 王青青, 王国权.橡胶Mooney-Rivlin模型中材料常数的确定[J]. 橡胶工业, 2011, 58(4):241-245. [16] 胡卫兵, 韩广森, 于海平.古建筑榫卯节点刚度分析[J]. 四川建筑科学研究, 2011, 37(6):44-47. [17] 吴秀峰, 丁乐, 刘海卿, 等.一种枋柱结构变形耗能节点:CN201610940569.5[P].2017-01-18. [18] 吴秀峰, 丁乐.穿斗式木结构增刚节点减震性能数值模拟分析[C]//第十二届中日建筑结构技术交流会论文集.神户, 日本:2017.
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