考虑竖向荷载的钢板剪力墙与防屈曲钢板剪力墙滞回性能研究
发布时间：2019-07-01 13:39
【摘要】：钢板剪力墙与防屈曲钢板剪力墙作为新型的抗侧力构件具有承载力高、延性好、耗能能力强等优点,因此在实际工程中具有良好的应用前景。钢板剪力墙可以充分利用其屈曲后强度,形成“拉力带”使钢板剪力墙继续承载,能够保持良好的延性和较高的承载力。防屈曲钢板剪力墙通过钢板两侧设置混凝土板,能有效防止钢板的平面外失稳,使钢板近似平面内受力工作,其耗能能力进一步提高。但在钢板剪力墙和防屈曲钢板剪力墙的施工和使用阶段,由于不可避免的承受一部分竖向荷载作用,竖向荷载会影响剪力墙的抗剪承载力和耗能能力,但目前相关研究很少且缺乏相应的设计方法,因此本文主要针对考虑竖向荷载作用的钢板剪力墙和防屈曲钢板剪力墙的滞回性能进行研究。论文中具体完成以下内容:(1)采用ABAQUS有限元软件建立精细化有限元模型,特别在防屈曲钢板剪力墙的模型中采用实体元模拟了钢筋混凝土板,能更精确模拟防屈曲钢板剪力墙在滞回荷载作用下的受力性能,并用已有试验结果验证了钢板剪力墙和防屈曲钢板剪力墙有限元模型的正确性。(2)对考虑竖向荷载影响的钢板剪力墙滞回性能进行系统的有限元分析。通过对典型模型的分析揭示出竖向荷载影响下钢板剪力墙在往复荷载作用下的受力机理。在此基础上,进一步分析了框架柱抗弯刚度、钢板高厚比、跨高比等参数对钢板剪力墙滞回性能的影响;研究结果表明:竖向荷载降低了钢板剪力墙的承载力、刚度及耗能能力;基于大量参数分析结果,提出了考虑竖向荷载影响的钢板剪力墙抗剪承载力计算方法。(3)对考虑竖向荷载影响的防屈曲钢板剪力墙滞回性能进行了有限元分析。研究了典型防屈曲钢板剪力墙考虑竖向荷载作用时的受力机理。在此基础上,分别研究了钢板高厚比、跨高比对防屈曲钢板剪力墙滞回性能的影响。研究表明:竖向荷载会降低防屈曲钢板剪力墙的抗剪承载力和耗能能力。基于大量参数分析结果,提出了考虑竖向荷载作用的防屈曲钢板剪力墙抗剪承载力计算方法。
[Abstract]:Steel plate shear wall and anti-buckling steel plate shear wall, as new type of lateral force resistant members, have the advantages of high bearing capacity, good ductility and strong energy dissipation capacity, so they have a good application prospect in practical engineering. The steel plate shear wall can make full use of its post-buckling strength, form a "tension belt" to make the steel plate shear wall continue to bear, and can maintain good ductility and high bearing capacity. The anti-buckling steel plate shear wall can effectively prevent the out-of-plane instability of the steel plate by setting concrete slabs on both sides of the steel plate, make the steel plate work approximately in-plane force, and further improve its energy consumption capacity. However, in the construction and use stage of steel plate shear wall and anti-buckling steel plate shear wall, because of the inevitable bearing part of vertical load, vertical load will affect the shear capacity and energy dissipation capacity of shear wall, but at present, there is little related research and lack of corresponding design methods. Therefore, this paper mainly studies the hysteretic behavior of steel plate shear wall and anti-buckling steel plate shear wall considering vertical load. The main contents of this paper are as follows: (1) the fine finite element model is established by using ABAQUS finite element software, especially in the model of anti-buckling steel plate shear wall, the reinforced concrete slab is simulated by solid element, which can more accurately simulate the mechanical behavior of anti-buckling steel plate shear wall under hysteretic load. The correctness of the finite element model of steel plate shear wall and anti-buckling steel plate shear wall is verified by the existing test results. (2) the hysteretic behavior of steel plate shear wall considering vertical load is analyzed systematically by finite element method. Through the analysis of the typical model, the stress mechanism of steel plate shear wall under the influence of vertical load is revealed. On this basis, the effects of bending stiffness, steel plate height to thickness ratio and span height ratio on the hysteretic behavior of steel plate shear wall are further analyzed, the results show that the vertical load reduces the bearing capacity, stiffness and energy consumption capacity of steel plate shear wall. Based on a large number of parameter analysis results, a calculation method of shear capacity of steel plate shear wall considering vertical load is proposed. (3) the hysteretic behavior of steel plate shear wall considering vertical load is analyzed by finite element method. The stress mechanism of typical anti-buckling steel plate shear wall considering vertical load is studied. On this basis, the effects of steel plate height to thickness ratio and span to height ratio on hysteretic behavior of anti-buckling steel plate shear wall are studied respectively. The results show that the vertical load can reduce the shear capacity and energy dissipation capacity of the steel plate shear wall. Based on the results of a large number of parameter analysis, a calculation method of shear capacity of steel plate shear wall considering vertical load is proposed.
【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】：2015
【分类号】：TU392.4
本文编号：2508527
[Abstract]:Steel plate shear wall and anti-buckling steel plate shear wall, as new type of lateral force resistant members, have the advantages of high bearing capacity, good ductility and strong energy dissipation capacity, so they have a good application prospect in practical engineering. The steel plate shear wall can make full use of its post-buckling strength, form a "tension belt" to make the steel plate shear wall continue to bear, and can maintain good ductility and high bearing capacity. The anti-buckling steel plate shear wall can effectively prevent the out-of-plane instability of the steel plate by setting concrete slabs on both sides of the steel plate, make the steel plate work approximately in-plane force, and further improve its energy consumption capacity. However, in the construction and use stage of steel plate shear wall and anti-buckling steel plate shear wall, because of the inevitable bearing part of vertical load, vertical load will affect the shear capacity and energy dissipation capacity of shear wall, but at present, there is little related research and lack of corresponding design methods. Therefore, this paper mainly studies the hysteretic behavior of steel plate shear wall and anti-buckling steel plate shear wall considering vertical load. The main contents of this paper are as follows: (1) the fine finite element model is established by using ABAQUS finite element software, especially in the model of anti-buckling steel plate shear wall, the reinforced concrete slab is simulated by solid element, which can more accurately simulate the mechanical behavior of anti-buckling steel plate shear wall under hysteretic load. The correctness of the finite element model of steel plate shear wall and anti-buckling steel plate shear wall is verified by the existing test results. (2) the hysteretic behavior of steel plate shear wall considering vertical load is analyzed systematically by finite element method. Through the analysis of the typical model, the stress mechanism of steel plate shear wall under the influence of vertical load is revealed. On this basis, the effects of bending stiffness, steel plate height to thickness ratio and span height ratio on the hysteretic behavior of steel plate shear wall are further analyzed, the results show that the vertical load reduces the bearing capacity, stiffness and energy consumption capacity of steel plate shear wall. Based on a large number of parameter analysis results, a calculation method of shear capacity of steel plate shear wall considering vertical load is proposed. (3) the hysteretic behavior of steel plate shear wall considering vertical load is analyzed by finite element method. The stress mechanism of typical anti-buckling steel plate shear wall considering vertical load is studied. On this basis, the effects of steel plate height to thickness ratio and span to height ratio on hysteretic behavior of anti-buckling steel plate shear wall are studied respectively. The results show that the vertical load can reduce the shear capacity and energy dissipation capacity of the steel plate shear wall. Based on the results of a large number of parameter analysis, a calculation method of shear capacity of steel plate shear wall considering vertical load is proposed.
【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】：2015
【分类号】：TU392.4
【引证文献】
相关会议论文 前1条
1 孙飞飞;刘桂然;王文涛;;钢框架钢板剪力墙结构的非线性静力分析[A];第七届全国现代结构工程学术研讨会论文集[C];2007年
，本文编号：2508527
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