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选取三个1∶12比例,在底部两层具有不同类型的不规则结构17层钢筋混凝土结构模型,使其经受同样的地震激励,观察它们的地震响应特性。第一个模型有一个对称弯矩抵抗结构(模型1),第二个模型在中间框架布置了一个填充剪力墙(模型2),第三个模型只在底部两层的外部结构中有一个填充剪力墙。通过分析和对比试验结果,得出了以下结论:在UBC97和AIK2000中,对除弯矩型结构和支撑墙结构之外的其他结构所估计的基本周期看来是合理的;结构由于破坏而吸收的能量总量与填充剪力墙的存在和位置几乎没有关系;结构倾覆时能吸收最多的能量,其次是由于剪切变形而吸收的能量。上部刚性系统导致下部结构产生摇摆,因此自重针对总的倾覆弯矩提供了高达23%的抵抗力。
Select three 1:12 ratio, with different types of irregular structure on the bottom two layers of 17-story reinforced concrete structure model, subject it to the same seismic excitation and observe their seismic response characteristics. The first model has a symmetrical moment-resisting structure (model 1), the second model has a filling shear wall (model 2) in the middle frame, and the third model has only one in the outer structure of the bottom two floors Fill the shear wall. By analyzing and comparing test results, it is concluded that in UBC97 and AIK2000, the basic period estimated for structures other than the moment-bending structure and the supporting wall structure seems to be reasonable; the structure is absorbed due to destruction Of the total amount of energy has nothing to do with the existence and location of filled shear walls; the structure absorbs the most energy when capsized, and secondly the energy absorbed as a result of shear deformation. The upper rigid system causes rocking of the substructure so that the deadweight provides up to 23% resistance to the total buckling moment.