双梁叠合模块化钢结构子框架抗侧力学性能研究

徐博; 宋继伟; 夏军武; 常鸿飞

doi:10.3724/j.gyjzG22122806

双梁叠合模块化钢结构子框架抗侧力学性能研究

doi: 10.3724/j.gyjzG22122806

徐博^1,2,
宋继伟¹,
夏军武^2,3,
常鸿飞^2,3

1. 常州大学城市建设学院, 江苏常州 213164;
2. 中国矿业大学江苏省土木工程环境灾变与结构可靠性重点实验室, 江苏徐州 221116;
3. 江苏建筑节能与建造技术协同创新中心, 江苏徐州 221116

基金项目:

国家自然科学基金项目（52208145，52074270，51978657）；江苏建筑节能与建造技术协同创新中心重大研究基金计划资助项目（SJXTZD2106，SJXTGJ2101）。

详细信息

作者简介:
徐博，博士，讲师，主要从事模块化装配钢结构、新型模块化节点抗震、智能建造技术方面的研究。电子信箱:xubohth@cczu.edu.cn

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出版历程
- 收稿日期: 2022-12-28
- 网络出版日期: 2025-11-05

Research on the Lateral Resistance of Modular Steel Sub-Frames with Composite Double Beams

1. School of Urban Construction, Changzhou University, Changzhou 213164, China;
2. Jiangsu Key Laboratory Environment Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou 221116, China;
3. Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology, Xuzhou 221116, China

摘要

摘要: 为研究双梁结构叠合作用对模块化钢结构建筑抗侧性能的影响，开展4榀双梁叠合模块化钢结构子框架水平加载足尺试验、数值模拟和理论分析，探究试件的抗侧承载特性，分析层间剪切荷载传递规律，揭示抗侧承载机理并建立初始抗侧刚度力学模型。研究结果表明：双梁结构通过高强螺栓叠合连接，模块化钢结构子框架抗侧承载力、初始抗侧刚度分别提高15%和19%左右。机理分析表明：螺栓连接叠合双梁优化了模块化建筑的水平荷载传递路径，增强了上下模块力学耦合作用，同时双梁叠合受弯作用提高了双梁结构等效刚度，进而有效加强了模块化子框架抗侧力学性能。基于双梁结构等效抗弯刚度理论公式，提出模块化子框架初始抗侧刚度力学模型，模型计算值与试验和有限元分析结果吻合良好。
- 模块化钢结构建筑 /
- 双梁结构 /
- 预紧内插节点 /
- 抗侧性能 /
- 叠合受弯作用
Abstract: To evaluate the influence of double-beam composite action on the lateral resistance of modular steel buildings， full-scale tests， numerical simulations， and theoretical analyses were conducted on four modular steel sub-frame specimens with composite double beams. The lateral resistance was analyzed， the load transfer mechanism was verified， and finally the lateral force-resisting mechanism was revealed with the development of an initial lateral stiffness model. The results showed that after the installation of high-strength bolts，the lateral bearing capacity and initial lateral stiffness increased by approximately 15% and 19%， respectively. The mechanistic analysis indicated that the composite bolted double-beam system optimized the lateral load transfer path in modular buildings， enhancing the mechanical coupling between upper and lower modules. Additionally， the composite bending action of the double beams improved the equivalent stiffness of double-beam structures， thereby effectively enhancing the overall lateral resistance. Based on the theoretical formula for equivalent bending stiffness of double-beam structures， a mechanical model for the initial lateral stiffness of modular steel sub-frames was proposed. The calculated results from the model agreed well with both experimental and numerical results.
- modular steel building /
- double-beam structure /
- preload plug-in joint /
- lateral resistance /
- composite bending action

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参考文献(25)

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