| 顶底角型件高强螺栓连接铝合金梁柱节点有限元分析 |
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| 引用本文： | 陈培旭、张铮、冯若若.顶底角型件高强螺栓连接铝合金梁柱节点有限元分析[J].福建工程学院学报,2021,0(3):268-274. |
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| 作者姓名： | 陈培旭、张铮、冯若若 |
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| 作者单位： | 福建工程学院土木工程学院 |
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| 摘 要： | 以顶底角型件高强螺栓连接铝合金梁柱节点为研究对象，利用有限元软件建立数值模型，并根据试验实测数据验证了有限元的准确性。探讨了轴压比、节点域厚度和顶底角型件厚度对节点力学性能的影响。对算例计算所得弯矩-转角曲线进行分析，拟合回归了三参数模型中形状系数的近似解析公式。结果表明，节点在合适的轴压比、节点域厚度和顶底角型件厚度下能表现出良好的抗震性能。提出的形状系数近似计算公式较为准确可靠，可为实际工程的连接设计方法提供理论依据。
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| 关 键 词： | 铝合金 梁柱节点 有限元分析 弯矩-转角曲线 形状系数 |
Finite element analysis of aluminum alloy beam-column nodes connected by top-bottom corner-piece high-strength bolts |
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| CHEN Peixu,ZHANG Zheng,FENG Ruoruo.Finite element analysis of aluminum alloy beam-column nodes connected by top-bottom corner-piece high-strength bolts[J].Journal of Fujian University of Technology,2021,0(3):268-274. |
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| Authors: | CHEN Peixu ZHANG Zheng FENG Ruoruo |
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| Institution: | School of Civil Engineering, Fujian University of Technology |
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| Abstract: | With the top-bottom corner-piece high-strength bolts to connect the aluminum alloy beam-column nodes as the research object, a numerical model was established with the finite element software, and the accuracy of the finite element was verified according to the experimental data. The effects of axial compression ratio, thickness of joint domain and thickness of the top and bottom corner-piece on the mechanical properties of the joints were discussed. The bending moment-rotation curve calculated by the calculation example was further analyzed, and the approximate analytical formula of the shape coefficient in the three-parameter model was fitted and regressed. Results show that the joints can exhibit good seismic performance under appropriate axial compression ratio, joint domain thickness and top-bottom corner section thickness. The proposed approximate calculation formula for the shape coefficient is more accurate and reliable, and provides a theoretical basis for the actual engineering connection design method. |
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| Keywords: | aluminum alloy beam-column nodes finite element analysis bending moment-rotation curve shape coefficient |
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