利用钢板剪力墙耗能的自复位结构体系的抗震和复位性能
发布时间：2018-11-13 08:57
【摘要】：利用钢板剪力墙耗能的自复位结构体系结合了钢板剪力墙结构和自复位结构的优点,兼具良好的抗震和复位性能,应用前景广泛。本文采用蝴蝶型钢板剪力墙做为自复位结构体系的耗能器。对于这种新型的结构体系,目前已经进行了单层结构的研究,为了研究多层结构体系的抗震和复位性能,本文在结合国内外理论研究的基础上,提出其简化模型和建模方法,选取了相关试验模型进行了模拟验证。从自复位框架,蝴蝶型钢板剪力墙的相关理论入手,研究了结构体系的耗能与复位机理。在模拟验证和理论分析的基础上建立多层结构体系模型,并进行了静力非线性分析,分析了其抗震和复位性能以及影响结构体系性能的参数。选取地震波分析了结构体系在多遇地震,中震和大震下的抗震和复位性能。结论如下:(1)采用蝴蝶型钢板剪力墙耗能的自复位结构体系的滞回曲线形状与自复位结构理论相一致,形状接近双旗帜型,且有一定量的层间残余侧移角。通过计算结构体系能量耗散系数及层间残余位移角,表明其具有较好的抗震和复位性能,可以运用于高层结构体系的抗震中。(2)蝴蝶型钢板剪力墙及预拉力钢绞线对结构体系的抗震和复位性能都有影响,需要相互匹配。在自复位框架一定的情况下,钢板剪力墙的屈服承载力和抗侧刚度有较优的取值范围。无论是钢绞线的面积还是初始预拉力,当结构体系满足复位要求之后,再过量增加对结构体系综合性能的提升很小。结构体系随层高的增加耗能性能增加而复位性能降低,跨度改变对体系耗能性能和复位性能影响较小。(3)利用钢板剪力墙耗能的自复位结构体系在地震作用下的复位性能较好,最大层间位移角小于各个性能目标,且在中震和大震作用下结构体系滞回环都较为饱满,表明体系抗震性能较好。钢绞线在地震作用下均保持弹性状态,为结构体系提供了复位能力,使结构体系的复位性能较好。(4)分析表明,本文所提出的利用钢板剪力墙耗能的自复位结构体系的抗震和复位性能较好,可以用于工程结构的抗震中。
[Abstract]:The self-reset structure system with steel plate shear wall energy dissipation combines the advantages of the steel plate shear wall structure and the self-reset structure, and has good seismic and restoration performance, so it has a wide application prospect. In this paper, butterfly steel plate shear wall is used as energy dissipation device of self-reset structure system. In order to study the aseismic and reset performance of the multi-story structure system, the simplified model and modeling method are put forward on the basis of theoretical research at home and abroad. The related test model is selected to be simulated and verified. Based on the theory of self-reset frame and butterfly steel plate shear wall, the energy dissipation and reset mechanism of structural system are studied. On the basis of simulation verification and theoretical analysis, the model of multi-story structure system is established, and the static nonlinear analysis is carried out. The aseismic and reset performance of the model and the parameters affecting the performance of the structure system are analyzed. Seismic wave is selected to analyze the seismic and reset performance of the structural system under frequent earthquakes, moderate earthquakes and large earthquakes. The conclusions are as follows: (1) the hysteretic curve shape of the structure system with butterfly steel plate shear wall dissipation energy is consistent with the theory of self-reduction structure, the shape is close to double banners, and there is a certain amount of residual lateral angle between layers. By calculating the energy dissipation coefficient and the residual displacement angle of the structure system, it is shown that it has better seismic and reset performance. It can be applied to the earthquake resistance of high-rise structure system. (2) Butterfly steel plate shear wall and pretension steel strand have influence on the seismic and reset performance of the structure system and need to match each other. The yield bearing capacity and lateral stiffness of steel plate shear wall have an optimum value range under the condition of self-reset frame. No matter the area of the steel strand or the initial pretension, the improvement of the comprehensive performance of the structural system is very small when the structural system meets the reset requirement. With the increase of the layer height, the energy dissipation performance of the structure system increases, but the reset performance decreases. The change of span has little effect on the energy dissipation performance and reset performance of the system. (3) the self-reset structure system with steel plate shear wall dissipation has better restoration performance under earthquake, and the maximum interstory displacement angle is smaller than each performance target. The hysteretic loop of the structure is full under the action of moderate earthquake and strong earthquake, which indicates that the seismic performance of the system is better. The steel strands maintain elastic state under seismic action, which provides the reset ability for the structural system and makes the structural system have better reset performance. (4) the analysis shows that, In this paper, the self-reset structural system with steel plate shear wall dissipation has good aseismic and reposition performance, and can be used in the seismic resistance of engineering structures.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.11;TU398.2
本文编号：2328624
[Abstract]:The self-reset structure system with steel plate shear wall energy dissipation combines the advantages of the steel plate shear wall structure and the self-reset structure, and has good seismic and restoration performance, so it has a wide application prospect. In this paper, butterfly steel plate shear wall is used as energy dissipation device of self-reset structure system. In order to study the aseismic and reset performance of the multi-story structure system, the simplified model and modeling method are put forward on the basis of theoretical research at home and abroad. The related test model is selected to be simulated and verified. Based on the theory of self-reset frame and butterfly steel plate shear wall, the energy dissipation and reset mechanism of structural system are studied. On the basis of simulation verification and theoretical analysis, the model of multi-story structure system is established, and the static nonlinear analysis is carried out. The aseismic and reset performance of the model and the parameters affecting the performance of the structure system are analyzed. Seismic wave is selected to analyze the seismic and reset performance of the structural system under frequent earthquakes, moderate earthquakes and large earthquakes. The conclusions are as follows: (1) the hysteretic curve shape of the structure system with butterfly steel plate shear wall dissipation energy is consistent with the theory of self-reduction structure, the shape is close to double banners, and there is a certain amount of residual lateral angle between layers. By calculating the energy dissipation coefficient and the residual displacement angle of the structure system, it is shown that it has better seismic and reset performance. It can be applied to the earthquake resistance of high-rise structure system. (2) Butterfly steel plate shear wall and pretension steel strand have influence on the seismic and reset performance of the structure system and need to match each other. The yield bearing capacity and lateral stiffness of steel plate shear wall have an optimum value range under the condition of self-reset frame. No matter the area of the steel strand or the initial pretension, the improvement of the comprehensive performance of the structural system is very small when the structural system meets the reset requirement. With the increase of the layer height, the energy dissipation performance of the structure system increases, but the reset performance decreases. The change of span has little effect on the energy dissipation performance and reset performance of the system. (3) the self-reset structure system with steel plate shear wall dissipation has better restoration performance under earthquake, and the maximum interstory displacement angle is smaller than each performance target. The hysteretic loop of the structure is full under the action of moderate earthquake and strong earthquake, which indicates that the seismic performance of the system is better. The steel strands maintain elastic state under seismic action, which provides the reset ability for the structural system and makes the structural system have better reset performance. (4) the analysis shows that, In this paper, the self-reset structural system with steel plate shear wall dissipation has good aseismic and reposition performance, and can be used in the seismic resistance of engineering structures.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.11;TU398.2
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