• Shear lag is reduced for prestress in serviceability limit state .

    正常使用状态下,预应力平抑箱梁剪力效应。

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  • Energy variation principle is a good method to solve the shear lag effect.

    能量变分求解剪力滞问题一个有效方法

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  • In the design of these Bridges, the designer must consider the effect of shear lag.

    这些桥梁设计中,设计人员必须考虑剪力滞效应影响

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  • The contribution of tension flange to the flexural strength of the beam; shear lag concept.

    受拉翼缘弯承载力的贡献;剪力滞。

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  • The spline Ritz method was proposed and used to analyse the shear lag effect of box girders.

    结合条函数提出薄壁形梁剪力效应计算样条里兹法。

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  • One simplified mechanics model based on elastic cylinder theory and shear lag model is proposed.

    弹性圆筒理论模型基础提出了考虑界面相与界面层效应的力学简化模型。

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  • Theoretical method of analyzing the effect of shear lag in bridge structures has some deficiency.

    分析桥梁结构剪力效应理论方法许多不足之处

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  • The analysis of shear lag has an important significance on safety and economy to the design of modern Bridges.

    剪力效应分析对于现代桥梁设计安全性经济性较大意义。

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  • The influences of three longitudinal displacement differential functions upon the shear lag are also discussed.

    探讨了不同纵向位移函数剪力滞影响

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  • When box beam is bent, the assumption that the section is plane is not satisfied and the shear lag is produced.

    形梁弯曲,平截面假定不能满足要求产生剪力效应。

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  • 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结构位移解析解

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  • The traditional shear lag theory of stress transfer in short fiber reinforced metal matrix composites was modified and improved.

    纤维增强金属复合材料应力传递传统理论进行修正改进。

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  • The homogeneous solution of the differential equation for the shear lag was taken as the displacement pattern of finite segment.

    控制微分方程齐次作为有限元位移模式

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  • The elastic plastic deformation and stresses of the micro composite are studied according to the shear lag theory and strain-hardening law.

    理论应变硬化规律研究复合材料塑性变形应力状态

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  • In the analysis and design of steel-concrete composite beams, the concept of effective flange width is introduced to consider the impact of shear lag.

    钢与混凝土组合梁设计分析通过引入有效宽度概念考虑混凝土翼板中剪力滞后影响

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  • The negative shear lag effect of the cantilever and continuous girders is studied and the parameters which influence the shear lag effect is analysed.

    悬臂剪力现象进行理论分析推导,结合实际算例来对悬臂负剪力滞现象进行参数分析。

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  • By employing the shear lag theory, the basic equations of interfacial mechanics for the elastic zone and the plastic zone are established respectively.

    利用界面应力理论,分别建立弹性塑性区的界面力学基本方程

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  • 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约束扭转畸变效应剪力比较突出。

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  • The dissertation applied the Shear Lag theories in Fiber Reinforced Composite material mechanics to the analysis of stress distribution of the anchored rock mass.

    本文纤维增强复合材料剪切理论运用于锚杆加固岩体应力分布规律研究

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  • 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.

    集中力作用处剪力效应其它截面相比明显增大,我国现行规(JTJ023-85)中关于有效宽度取全桥等宽的说法需要进一步研究

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  • The flexural deformation and forces can be calculated by the equivalent continuous system method, in which the main influencing parameters of shear lag are discus sed.

    等效连续弯曲变形内力进行分析,分析影响框筒结构剪力滞的主要因素

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  • 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.

    根据简化边界条件,得到面内应变弯曲应变的级数,进而求得剪力滞后系数

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  • Finite beam segment method is an effective way to solve the shear lag problem of statically indeterminate structure, such as continuous girder with constant cross section etc.

    有限求解结构(连续)剪力行之有效方法

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  • 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.

    基于换算截面运用变分原理对开裂混凝土连续箱梁剪力效应进行了分析,与规范方法和试验结果进行了对比

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  • Each structural parameter of shear lag coefficient is systematically analyzed and compared, the practical calculation tables of shear lag coefficient are drawn and refer to design.

    通过对影响剪力系数结构参数进行分析比较编制出计算剪力滞系数实用计算可供设计参。

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  • 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.

    考虑形截面剪力滞后效应影响利用推导箱形截面梁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。

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  • 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非线性分布剪力滞效应随荷载增加变化,并不是常量

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  • 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.

    提出结合效应分析有限单元模型避免了常规计算方法中的某些不足

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  • Stiffness matrix and equivalent nodal force formula, which take into account of the influence of shear lag, are derived subsequently on the basis of the definition of stiffness coefficient.

    解析作为形函数,利用刚度系数定义推导了考虑影响的箱形梁单元刚度矩阵等效结点公式。

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  • Stiffness matrix and equivalent nodal force formula, which take into account of the influence of shear lag, are derived subsequently on the basis of the definition of stiffness coefficient.

    解析作为形函数,利用刚度系数定义推导了考虑影响的箱形梁单元刚度矩阵等效结点公式。

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