The shear-lag effect on the prestressed RPC simply-supported box girder is studied by FEA method and energy variation method.
用有限元法和能量变分法对预应力活性粉末混凝土简支箱梁的剪力滞效应进行研究。
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。
In this dissertation, the shear lag effect for large span box-section beam structure and the structural nonlinear anti-seismic capability have been theoretically and experimentally investigated.
本论文主要针对大跨度箱形截面梁结构剪力滞效应和结构非线性抗震性能进行了较深入的理论分析和一定的试验对比研究。
Considering the influence of shear lag effect, displacements of framed tube structures are derived in this paper.
考虑剪力滞后效应影响推导出了框筒结构位移解析解。
Theoretical method of analyzing the effect of shear lag in bridge structures has some deficiency.
分析桥梁结构剪力滞效应的理论方法有许多不足之处。
Based on transformed section method, shear lag effect of continuous box girder was analyzed adopting variational principle, and compared with design code and experimental result.
基于换算截面法，运用变分原理对开裂混凝土连续箱梁的剪力滞效应进行了分析，并与规范方法和试验结果进行了对比。
A kind of finite segment element model for analysis of shear lag effect in plate and truss composite girder is proposed. The model avoids certain deficiencies in conventional calculations.
提出一种板桁结合梁剪滞效应分析的有限段单元模型，避免了常规计算方法中的某些不足。
The method adopted in this paper is definite in mechanical concept, and it is the extension of elastic analysis, it can be widely used in shear lag effect analysis of cracked continuous box girder.
本文方法力学概念明确，是其弹性分析适用范围的拓展，可广泛应用于连续箱梁开裂后的剪力滞效应分析。
The vibration frequency of box gird is usually calculated by the elementary beam theory, but it will lead to a large error because of the existence of shear lag effect and shear deformation.
由于剪力滞效应及剪切变形的存在，箱梁的弯曲振动频率按照初等梁理论计算往往存在较大的误差。
The shear lag effect of the section under concentrated load is more remarkable than that of other sections. National Standard (JTJ023-85) is worth discussing further.
集中力作用处剪力滞效应与其它截面相比明显增大，我国现行桥规（JTJ023-85）中关于有效宽度取全桥等宽的说法需要进一步研究。
On the basis of the variational method, a finite difference solution is presented for shear lag effect in Qiantang River Bridge with box section of varying depth.
本文结合钱塘江二桥应用变分法推导了变截面箱形梁剪滞效应的微分方程并利用有限差分法求得解答。
The spline Ritz method was proposed and used to analyse the shear lag effect of box girders.
结合样条函数和里兹法提出薄壁箱形梁剪力滞效应计算的样条里兹法。
A new cross section displacement function and degree of freedom of nodes are introduced and improved which consider the effect of shear-lag.
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。
The study demonstrates that the section strain along the width is nonlinearly distributed and that the effect of the shear lag is not constant and changes with the increment of the load.
试验表明，截面应变沿宽度方向呈非线性分布，剪力滞效应随荷载的增加而变化，并不是常量。
In this paper, the shear lag effect in box girder Bridges is analysed by means of variational calculus and finite strip method.
本文应用变分法和有限条法分析箱形梁桥的剪滞效应。
The negative shear lag effect of the cantilever and continuous girders is studied and the parameters which influence the shear lag effect is analysed.
就悬臂梁的负剪力滞现象进行理论分析和推导，并结合实际算例来对悬臂梁负剪力滞现象进行参数分析。
The shear lag effect in frame-tube structures can be neglected when the ratio of beams span to height increases to some degree, and its behaviors comes close to the behaviors of frame structures.
当框筒结构裙梁跨高比增大到一定程度以后，剪力滞效应就可以忽略，结构的受力性能与框架相近。
The results calculated by means of regular formula for calculating the shear lag effect in box girder show that the usual analytical solutions f…
对试验结果的分析表明，随着载荷水平的增加，截面的剪力滞效应逐渐明显。
Calculated from the measured data of continuous beams with shear lag effect of the actual situation, for the future bridge design and construction control of the scene to provide valuable information.
从现场实测数据计算分析连续梁的剪力滞效应的实际情况，为以后的桥梁设计和现场施工控制提供有价值的资料。
According to the spare thin-walled structure theory, the displacement trial functions are given by taking the "shear lag effect" into account.
根据空间薄壁结构理论并考虑简体结构的剪力滞后效应建立了简体结构的位移试函数表达式。
The adoption of the thin-walled box girder to the Y-shape bridge makes the restrained torsion effect, distortion effect and shear lag effect prominent.
人字形桥梁由于采用了薄壁箱梁结构，其约束扭转、畸变效应及剪力滞比较突出。
The displacement variational principle was used to develop the spline finite member element method for buckling analysis of thin walled members with shear lag effect.
根据势能驻值原理 ，提出在横向荷载作用下薄壁杆件稳定分析的样条有限杆元法。
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.
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。
Thinking over the influence of box beams shear lag effect, making use of the governing different equations and related natural boundary conditions of bending vibration to box girder.
考虑箱形截面梁剪力滞后效应的影响，利用推导出的箱形截面梁的弯曲振动方程及其自然边界条件，并据此进一步推导出了多跨箱形截面梁的固有频率方程。
On the basis of the governing differential equations by the variational principles, the finite beam element for analyzing the shear lag effect of box girders is proposed.
在变分法薄壁箱梁剪力滞基本微分方程的基础上，提出一个可考虑集中弯矩影响的分析箱梁剪力滞效应的有限梁单元。
Analysis of shear lag effect in thin-walled box girders with one-dinensional dicrete finite element;
应用作者建立的有限段模型，对简支箱梁进行剪滞效应分析，发现变高度简支梁存在负剪力滞。
Based on the displacement variational principle, a new element is developed for buckling analysis of thin-walled members with shear lag effect in the present paper.
根据位移变分原理，本文提出一种纯压或纯弯薄壁杆件稳定分析的新单元。
Based on the displacement variational principle, a new element is developed for buckling analysis of thin-walled members with shear lag effect in the present paper.
根据位移变分原理，本文提出一种纯压或纯弯薄壁杆件稳定分析的新单元。
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