重组竹框架梁柱节点抗震性能试验研究

周巧玲; 赵仕兴; 钟紫勤; 张明; 陈述伟; 杨姝姮

doi:10.3724/j.gyjzG24102205

重组竹框架梁柱节点抗震性能试验研究

doi: 10.3724/j.gyjzG24102205

周巧玲^1,2,
赵仕兴^1,2, ,,
钟紫勤^1,2,
张明³,
陈述伟⁴,
杨姝姮^1,2

1. 四川省建筑设计研究院有限公司, 成都 610095;
2. 四川省建筑设计研究院有限公司复杂结构设计研究中心, 成都 610095;
3. 西南交通大学, 成都 610031;
4. 洪雅竹元科技有限公司, 四川洪雅 620300

基金项目:

四川省建筑设计研究院有限公司院内科研项目(KYYN202221,KYYN202312)

四川省科技计划资助(2023YFS0393)

成都市重点研发项目(2024-YF05-02450-SN)

四川省科技厅项目(2024JDRC0101)

陕西省自然科学基金资助项目(2024JC-YBMS-277)。

详细信息

作者简介:
周巧玲,博士,工程师,主要从事现代竹木结构研究。

通讯作者:
赵仕兴,教授级高级工程师,主要从事抗震防灾、复杂结构以及现代竹木结构的设计与研究,316458931@qq.com。

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出版历程
- 收稿日期: 2024-10-22
- 网络出版日期: 2025-04-02

Experimental Research on the Seismic Performance of Bamboo Scrimber Beam-Column Joints

1. Sichuan Provincial Architectural Design and Research Institute Co., Ltd., Chengdu 610095, China;
2. Complex Structure Design and Research Center, Sichuan Provincial Architectural Design and Research Institute Co., Ltd., Chengdu 610095, China;
3. Southwest Jiaotong University, Chengdu 610031, China;
4. Sichuan Zhuyuan Technology Co., Ltd., Hongya 620300, China

摘要

摘要: 为研究榫卯连接和钢填板螺栓连接两类典型重组竹框架梁柱节点的抗震性能,设计制作了2个节点试件并开展了水平低周往复加载试验,对比分析了两类节点的破坏模式、弯矩-转角曲线、承载能力、强度和刚度退化以及耗能能力等。结果表明:榫卯连接节点的破坏主要由拔榫造成,而钢填板螺栓连接节点的破坏主要由梁端拔出、柱上节点域形成贯通横裂缝及其上螺栓形成弯曲塑性铰造成;两类节点的滞回曲线均呈反"Z"形,但榫卯连接节点的滑移段更短、"捏缩"效应更轻微;钢填板螺栓连接节点承载能力更优越、强度退化更轻微;加载初期,榫卯连接节点刚度高而耗能能力低,但加载中后期,钢填板螺栓连接节点刚度高而耗能能力低。两类节点各具优点,可考虑优势互补,提出整体性能更优的新型重组竹框架梁柱节点。
- 重组竹框架 /
- 榫卯连接节点 /
- 钢填板螺栓连接节点 /
- 抗震性能
Abstract: In order to investigate the seismic performance of two typical types of bamboo scrimber beam-column joints, namely the mortise-tenon joint and the bolted bamboo scrimber (BS)-steel-bamboo scrimber (BS) joint, two joint specimens were designed, fabricated and conducted on the quasi-static loading. The failure mode, moment-rotation curves, bearing capacity, strength and stiffness degradation, and energy dissipation capacity of the two types of joints were compared and analyzed. The results indicated that the failure of the mortise-tenon joint was mainly caused by the extraction of tenon, while the failure of the bolted BS-steel-BS joint was mainly caused by the extraction of beam end, the formation of through transverse cracks in the panel zone on the column, and the formation of bending plastic hinge by bolts. The hysteretic curves of both types of joints showed an inverse "Z" shape, but the slip of the mortise-tenon joint was shorter and the "pinching" effect was milder. The bolted BS-steel-BS joint had superior bearing capacity and less strength degradation. At the beginning of loading, the mortise-tenon joint showed higher stiffness but lower energy dissipation capacity. However, in the middle later stages of loading, the bolted BS-steel-BS joint had higher stiffness but lower energy dissipation capacity. The two types of joints have their own advantages, and a new type of bamboo scrimber beam-column joint with better overall performance can be proposed by comprehensively considering the advantages of both types of joints.
- bamboo scrimber frame /
- mortise-tenon joint /
- bolted bamboo scrimber-steel-bamboo scrimber joint /
- seismic performance

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参考文献(18)

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