剪力滞后在结构工程中是一个普遍存在的力学现象，小至一个构件，大至一栋超高层建筑，都会有剪力滞后现象。剪力滞后有时也叫剪切滞后，具体表现是，在某一局部范围内，剪力所能起的作用有限，所以正应力分布不均匀，把这种正应力分布不均匀的现象叫剪切滞后。例如在墙体上开洞以后，由于横梁变形使剪力传递存在滞后现象，使柱中正应力分布呈抛物线状，称为剪力滞后效应。
考虑剪力滞后效应影响推导出了框筒结构位移解析解。
Considering the influence of shear lag effect, displacements of framed tube structures are derived in this paper.
在此基础上，用程序进一步分析了框筒结构剪力滞后效应及其影响因素。
Based on the former work, detail analyses of shear-lag effect in frame-tube structure as well as several factors that may influence the effect are made.
在模型中，通过引入一种新的截面位移模式和节点自由度，考虑了剪力滞后效应的影响。
A new cross section displacement function and degree of freedom of nodes are introduced and improved which consider the effect of shear-lag.
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