半刚接钢框架—钢板剪力墙结构体系抗震试验研究

发布时间：2018-03-08 21:29

  本文选题：半刚性节点　切入点：钢框架　出处：《哈尔滨工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：钢框架剪力墙体系是一种新型的抗侧力体系，本文笔者将半刚性节点与该种结构体系相结合，提出了一种新型的结构体系形式，以钢框架作为主体结构，节点采用顶底角钢这种半刚性连接形式，利用钢框架本身与钢板剪力墙的协同工作，为结构提供水平抗力。本次研究采用试验与有限元分析相结合的方法，试验选用地震模拟振动台试验，有限元分析选用缩尺建模的方式，以研究该种结构体系的抗震性能。论文所完成的内容如下： （1）完成了本次试验所用6层半刚接钢框架-钢板剪力墙结构模型的设计与加工，并完成了相关材性试验。 （2）通过地震模拟振动台试验，对试验模型施加不同场地类别、不同地震幅值共计30条地震记录，观察结构模型在振动过程中的位移响应、加速度响应以及钢板剪力墙的平面外变形、拉力带形成与变化过程，研究了场地类别、地震幅值对结构动力特性的影响。 （3）通过对试验模型进行白噪声扫频处理，得到了结构模型在振动过程中自振频率的变化，进一步分析得出振动过程中结构刚度的变化。 （4）利用ANSYS建立试验缩尺模型，选取Ⅱ类场地类别、不同幅值地震波进行地震时程分析，提取模拟结果与试验结果进行对比，找出二者之间的区别，，并分析原因；提取结构模拟时的底部剪力与规范中规定方法计算结果进行对比，验证了模拟结果的合理性。 （5）利用ANSYS建立试验框架缩尺模型，改变钢板剪力墙厚度，进行地震时程分析，研究墙板厚度对结构抗震性能的影响。
[Abstract]:The steel frame shear wall system is a new type of lateral force resistance system. In this paper, a new type of structure system is proposed, in which the semi-rigid joints are combined with the structure system, and the steel frame is used as the main structure. The joint adopts the semi-rigid connection form of top and bottom angle steel, and makes use of the cooperative work of steel frame and steel plate shear wall to provide horizontal resistance for the structure. In this study, the method of combining test with finite element analysis is adopted. Seismic simulation shaking table test and finite element analysis are used to study the seismic performance of this kind of structural system. The contents of this paper are as follows:. 1) the design and processing of the six-story semi-rigid steel frame-steel shear wall structure model used in this experiment were completed, and the related material properties test was completed. (2) through the shaking table test of earthquake simulation, 30 seismic records were applied to the test model with different site types and different earthquake amplitudes. The displacement response of the structural model during vibration was observed. The effects of site type and earthquake amplitude on the dynamic characteristics of the structure are studied. The acceleration response, the out-of-plane deformation of the steel plate shear wall and the forming and changing process of the tension band are studied. 3) the change of the natural frequency of the structural model during vibration is obtained by processing the white noise frequency of the experimental model, and the variation of the structural stiffness during the vibration process is further analyzed. (4) using ANSYS to set up the scale model of the test, selecting the class 鈪

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