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内框架房屋抗震的空间分析
引用本文:钟锡根,杨翠如,刘大海.内框架房屋抗震的空间分析[J].建筑结构学报,1984,5(4):45-57.
作者姓名:钟锡根  杨翠如  刘大海
作者单位:中国建筑西北设计院 ,中国建筑西北设计院 ,中国建筑西北设计院
摘    要:内框架房屋的脉动振型、强拉变形曲线以及震害规律,进一步证实楼盖的有限刚度和高阶空间振型对震害程度和破坏部位的显著影响。以往采用的“单竖杆多质点系”计算简图未能反映这些特点。 本文提出考虑楼盖水平变形的空间结构模型,建立“多竖杆多质点系”的自振方程,应用反应谱理论求解多阶空间振型的地震反应,给出考虑楼盖空间作用及砖墙弹性和非弹性变形阶段的构件地震内力。通过实例分析说明,计算结果与实测自振特性和震害规律都有着较好的一致性。

收稿时间:1984-08-05
修稿时间:1984-08-05

Aseismic Spatial Analysis of Multistory Buildings with Brick Bearing Walls and Internal Partial Frames
Zhong Xigen,Yang Cuiru,Liu Dahai.Aseismic Spatial Analysis of Multistory Buildings with Brick Bearing Walls and Internal Partial Frames[J].Journal of Building Structures,1984,5(4):45-57.
Authors:Zhong Xigen  Yang Cuiru  Liu Dahai
Affiliation:Zhong Xigen,Yang Cuiru,Liu Dahai (China Northwest Building Design Institute )
Abstract:According to the data of the ambient measurements, the deformation curves of buildings under horizontal loads and the rule of earthquake damage, it can been shown that the floor slab possess only limited rigidity in horizontal direction. The degree and the location of structural damages are closely related to the higher vibration modes and the limited rigidity cf the floor slab of the building. It means that the mathematical model of the multi-degree system with single vertical member is not good for seismic analysis.In this paper, the mathematical model of spatial structure taking account of slab deformation is considered. By means of solving the natural vibration equation and the theory of the response spectrum, the combined stresses of members due to the earthquake responses of several higher modes are obtained. It shows that the results thus obtained agree better with the general phenomena of earthquake damage
Keywords:
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