Comparative study on calculation methods of elastic lateral stiffness in masonry-infilled frames

被引：0

作者：

Qiao D. ^{[1
]}

Jing D. ^{[1
]}

机构：

[1] School of Civil Engineering, Southeast University, Nanjing

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2020年 / 41卷

关键词：

Calculation model; Elastic lateral stiffness; Equivalent diagonal strut; Frame structure; Masonry-infilled wall;

D O I：

10.14006/j.jzjgxb.2020.S1.021

中图分类号：

学科分类号：

摘要：

For frames with masonry infill walls, when the infill walls are in close contact with the frames, the infill walls will improve the lateral stiffness of the pure frames and may change the plane and vertical lateral stiffness distribution of the structure, which will affect its bearing capacity, energy dissipation capacity and other seismic behavior under the action of an earthquake. In order to study the reasonable calculation method of the lateral stiffness of the frame with infill wall in the elastic stage, the relevant calculation formulas mainly based on the equivalent diagonal strut model were collected, and combined with the experimental investigations on frame with infill wall under the low reversed cyclic loading in recent years, the theoretical calculation results were compared with the measured values. The results showed that in the RC frame with infill wall, the calculated lateral stiffness of the elastic stage obtained by directly considering the bending deformation and shear deformation of the infill wall was 1.94 to 8.05 times the measured value; in the equivalent diagonal strut model, the width of the diagonal strut had a great influence on the calculation results of the lateral stiffness; the value of the width of the diagonal strut should consider the influence of the relative stiffness between the filling wall and the frame, and the calculation formula of the diagonal strut width proposed by MSJC was more reasonable. © 2020, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：188 / 195

页数：7

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