基于ABAQUS的钢—混凝土组合梁钢框架抗震性能研究
发布时间：2018-12-31 20:05
【摘要】：近年来，组合结构在我国发展迅速，钢-混凝土组合梁钢框架是一种常用且重要的组合结构形式，钢-混凝土组合梁是在钢梁上翼缘表面焊接抗剪连接件后，浇筑混凝土板从而使钢筋混凝土翼缘板与钢梁协同工作的梁，钢-混凝土组合梁与钢柱组成的框架结构即为钢-混凝土组合梁钢框架（以下简称组合梁钢框架）。我国是一个地震频发的国家，5.12汶川地震造成大量的房屋倒塌、破坏以及巨大的人员伤亡，使我们更深刻地认识到结构抗震性能研究的重要性及迫切性。目前对钢-混凝土组合梁钢框架及构件的抗震性能研究并不充分，组合梁钢框架节点又是整个框架结构受力的关键部位，需要单独重点研究。本课题是在国家自然科学基金(50978074)的资助下完成，本文利用有限元分析软件ABAQUS对组合梁钢框架及钢-混凝土组合梁钢框架节点（以下简称组合节点）进行抗震性能研究，主要完成了以下工作： 1）利用ABAQUS对组合节点（一个边柱节点和一个中柱节点）在梁端循环荷载作用下进行有限元分析，与已有拟静力试验结果进行对比和验证，得到用于抗震性能分析的组合节点有限元模型； 2）基于已验证的组合节点模型，对其在循环荷载作用下的受力性能进行详细研究，并建立纯钢节点模型，对组合节点及纯钢节点在循环荷载下的受力性能及滞回耗能能力进行对比分析，得出组合节点抗弯承载力及抗震耗能能力相比纯钢节点均有显著提高； 3）对组合节点进行参数分析，探讨了包括混凝土板配筋率、混凝土板厚度及钢梁高度等参数对组合节点在循环荷载作用下承载力及滞回性能的影响，根据分析结果提出了组合节点的抗震设计建议； 4）对一单榀组合梁钢框架及纯钢框架进行动力弹塑性时程分析，根据抗震规范要求选取三条地震动时程曲线，，研究组合框架在地震作用下的应力分布、层间位移（角）及层间剪力分布，根据塑性变形及损伤集中的部位，判断结构的薄弱区域，对组合梁钢框架的抗震性能进行评价，分析结果可用于指导组合梁钢框架结构的抗震设计。
[Abstract]:In recent years, composite structures have developed rapidly in China. Steel frame of steel-concrete composite beams is a common and important composite structure form. Steel-concrete composite beams are welded shear joints on the surface of the upper flange of steel beams. The frame structure composed of steel-concrete composite beam and steel column is the steel-concrete composite beam steel frame (hereinafter referred to as composite beam steel frame). China is a country with frequent earthquakes. The 5.12 Wenchuan earthquake caused a large number of buildings collapse, destruction and huge casualties, so we have a deeper understanding of the importance and urgency of structural seismic performance research. At present, the seismic behavior of steel frame and members of steel-concrete composite beam is not enough, and the steel frame joint of composite beam is the key part of the whole frame structure, which needs to be studied separately. This project was completed with the support of the National Natural Science Foundation (50978074). In this paper, the seismic behavior of steel frame joints of composite beams and steel-concrete composite beams (hereinafter referred to as composite joints) is studied by using finite element analysis software ABAQUS. The main works are as follows: 1) the finite element analysis of composite joints (one side column joint and one middle column joint) under cyclic load at the end of beam is carried out by using ABAQUS, and the results are compared and verified with the existing quasi-static test results. The combined node finite element model for seismic performance analysis is obtained. 2) based on the verified composite joint model, the mechanical behavior of the composite joint under cyclic load is studied in detail, and the pure steel joint model is established. The mechanical behavior and hysteretic energy dissipation capacity of composite joints and steel joints under cyclic load are compared and analyzed. The results show that the flexural bearing capacity and seismic energy dissipation capacity of composite joints are significantly higher than those of pure steel joints. 3) the parameters of composite joints are analyzed, and the influence of the parameters such as reinforcement ratio of concrete slab, thickness of concrete slab and height of steel beam on the bearing capacity and hysteretic performance of composite joints under cyclic load is discussed. According to the analysis results, the seismic design suggestions of composite joints are put forward. 4) dynamic elastic-plastic time-history analysis of a single composite beam steel frame and pure steel frame is carried out. According to the requirements of seismic code, three seismic time-history curves are selected to study the stress distribution of composite frame under earthquake action. According to the location of plastic deformation and damage concentration, the weak area of the structure is judged, and the seismic behavior of composite beam steel frame is evaluated. The results can be used to guide the seismic design of composite beam steel frame structure.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU398.9
本文编号：2397052
[Abstract]:In recent years, composite structures have developed rapidly in China. Steel frame of steel-concrete composite beams is a common and important composite structure form. Steel-concrete composite beams are welded shear joints on the surface of the upper flange of steel beams. The frame structure composed of steel-concrete composite beam and steel column is the steel-concrete composite beam steel frame (hereinafter referred to as composite beam steel frame). China is a country with frequent earthquakes. The 5.12 Wenchuan earthquake caused a large number of buildings collapse, destruction and huge casualties, so we have a deeper understanding of the importance and urgency of structural seismic performance research. At present, the seismic behavior of steel frame and members of steel-concrete composite beam is not enough, and the steel frame joint of composite beam is the key part of the whole frame structure, which needs to be studied separately. This project was completed with the support of the National Natural Science Foundation (50978074). In this paper, the seismic behavior of steel frame joints of composite beams and steel-concrete composite beams (hereinafter referred to as composite joints) is studied by using finite element analysis software ABAQUS. The main works are as follows: 1) the finite element analysis of composite joints (one side column joint and one middle column joint) under cyclic load at the end of beam is carried out by using ABAQUS, and the results are compared and verified with the existing quasi-static test results. The combined node finite element model for seismic performance analysis is obtained. 2) based on the verified composite joint model, the mechanical behavior of the composite joint under cyclic load is studied in detail, and the pure steel joint model is established. The mechanical behavior and hysteretic energy dissipation capacity of composite joints and steel joints under cyclic load are compared and analyzed. The results show that the flexural bearing capacity and seismic energy dissipation capacity of composite joints are significantly higher than those of pure steel joints. 3) the parameters of composite joints are analyzed, and the influence of the parameters such as reinforcement ratio of concrete slab, thickness of concrete slab and height of steel beam on the bearing capacity and hysteretic performance of composite joints under cyclic load is discussed. According to the analysis results, the seismic design suggestions of composite joints are put forward. 4) dynamic elastic-plastic time-history analysis of a single composite beam steel frame and pure steel frame is carried out. According to the requirements of seismic code, three seismic time-history curves are selected to study the stress distribution of composite frame under earthquake action. According to the location of plastic deformation and damage concentration, the weak area of the structure is judged, and the seismic behavior of composite beam steel frame is evaluated. The results can be used to guide the seismic design of composite beam steel frame structure.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU398.9
【参考文献】
相关期刊论文 前10条
1 王文波;邵永松;暴伟;;框架梁柱平端板连接组合节点性能研究[J];低温建筑技术;2005年06期
2 张剑;;弹塑性动力时程分析若干问题的分析与探讨[J];工程抗震与加固改造;2011年05期
3 刘劲松;刘红军;;ABAQUS钢筋混凝土有限元分析[J];装备制造技术;2009年06期
4 张劲;王庆扬;胡守营;王传甲;;ABAQUS混凝土损伤塑性模型参数验证[J];建筑结构;2008年08期
5 李正;朱炳寅;李宁;;基于ABAQUS的钢筋混凝土框架结构地震损伤分析[J];建筑结构;2011年S1期
6 石永久;王萌;王元清;施刚;;钢框架梁柱组合节点滞回性能有限元分析[J];土木建筑与环境工程;2010年03期
7 宋雅桐,朱继澄;满足规范设计谱的人造地震波及若干结构反应[J];建筑结构学报;1983年03期
8 薛伟辰,李杰,李昆,王骅;预应力组合梁框架抗震性能研究[J];建筑结构学报;2003年02期
9 石文龙;李国强;肖勇;叶志明;;半刚性连接梁柱组合节点低周反复荷载试验研究[J];建筑结构学报;2008年05期
10 聂建国;陶慕轩;黄远;田淑明;陈戈;;钢-混凝土组合结构体系研究新进展[J];建筑结构学报;2010年06期
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