框筒结构剪力滞后效应分析

Analysis of shear-lag effect in framed tube structure

剪力滞后现象是高层框筒结构的一个重要力学现象,本文采用能量变分法分析了薄壁箱形截面梁的剪力滞后效应,对影响剪力滞系数的几何参数进行了对比分析,得到了一些有用的结论,对结构设计与施工有一定的指导作用.

Shear lag phenomenon is an important mechanical phenomenon of high-rise framed tube structure. The shear lag coefficient is deduced by the energy-differential method. The author analysis the influence of geometry parameter of framed tube structure on shear lag under the condition that the other influencing factors keep constant.