墙体上开洞形成的空腹筒体又称框筒，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，称为剪力滞后现象。
Through the FEM analysis, the shear lag of the stress distribution in the box-shaped beam of mega-frame are discovered. It has important direction significance to design of mega-frame beams.3.
并通过分析，发现了巨型箱形梁中应力分布中存在的“剪力滞后”现象，对巨型梁的设计有重要的指导作用。
参考来源 - 巨型框架箱形节点抗震性能试验及分析The load type, the stiffness of the corner columns and the ratio of length to width have little effect on the shear-lag effect. But the ratio of height to width is at work.
结果表明:剪力滞后引起的侧移在设计中有必要考虑;荷载形式、角柱刚度、框筒的长宽比对剪力滞后效应影响不大;增大框筒的高宽比可以减小相同高度比例处的剪力滞后效应。
参考来源 - 框筒结构剪力滞后效应分析的样条函数方法A method of transfer matrix, which tries to study the Shear lag effect, is put forward.
提出一种研究连续箱梁桥剪力滞后效应的传递矩阵法。
参考来源 - 基于多参数翘曲位移函数的箱梁剪力滞效应的解析法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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.
根据简化的边界条件，得到了面内应变和弯曲应变的级数解，进而求得剪力滞后系数。
Series solutions were derived for the in-plane strain, deflection and bending strain that satisfy the simplified boundary conditions to calculate the shear lag coefficient.
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