钢筋混凝土框筒结构负剪力滞研究  

Study on Negative Shear Lag in Reinforced Concrete Frame-Tube Structure

作　　者：陈伯望[1] 王海波[1] 

机构地区：[1]湖南城市学院土木工程学院,湖南益阳413000

出　　处：《建筑科学》2005年第3期8-12,共5页Building Science

摘　　要：框筒结构在水平荷载作用下的变形由剪切变形和弯曲变形两部分组成,弯曲变形必须考虑正、负剪力滞的影响。本文在框筒柱应力分布和剪力滞分布假定的基础上,取消连续化假定,推导出了框筒结构弯曲变形时柱轴力和侧移的简化计算公式,对影响框筒结构负剪力滞的几个主要因素进行了分析。The deformation of frame-tube structure under the lateral load is constituted by both shear and bend deflections. The effect of shear lag must be considered for the bend deflection. On the basis of the assumed distribution of stresses and the shear lag of columns for a frame-tube structure, in which the equivalent continuation method is abandoned, the simple formulas for calculating the axial forces of columns and the lateral deflection are brought out and the effects on the negative shear lag are discussed in the paper.

关 键 词：框筒结构 负剪力滞 钢筋混凝土 弯曲变形 水平荷载作用 简化计算公式 剪切变形 应力分布 连续化 柱轴力 基础 侧移 

分 类 号：TU973.17[建筑科学—结构工程] TU323.301