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Shear lag analysis of beam-columns
Engineering Structures, 2003This paper presents a new systematic approach to the shear lag analysis of structures that are subjected to simultaneous bending and axial forces. The shear lag effects in beam action and column action are considered separately in analogy to the stress calculation of beam-columns, using box girder as an illustrating example.
Qiu Sheng Li
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Experimental studies on shear lag of box girders
Engineering Structures, 2002Abstract Two experimental studies on shear lag effect are conducted, one for box girders with varying depth in cross section and the other for box girders under simultaneous axial and lateral loads. Three Perspex glass models built specifically for the research work were used to perform the experiments with the purpose of investigating the shear lag ...
Qiu Sheng Li
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A finite segment model for shear lag analysis
Engineering Structures, 2004Abstract A finite segment model is developed to calculate the shear lag effects for box girders with varying depth. Multiple longitudinal displacement functions are used to derive the stiffness matrix and the nodal force vector of the segment element. The shear deformation of the web is taken into consideration.
Qiu Sheng Li
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Journal of the Structural Division, 1982
This technical note reports an interesting phenomenon associated with shear lag in the flanges of box girders that is quite contrary to well established ideas concerning this subject. A brief description of a beam model and solution technique are given. It is shown that if a cantilever tube is loaded laterally under non-uniform shear, a reversal of the
Douglas A. Foutch, P. C. Chang
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This technical note reports an interesting phenomenon associated with shear lag in the flanges of box girders that is quite contrary to well established ideas concerning this subject. A brief description of a beam model and solution technique are given. It is shown that if a cantilever tube is loaded laterally under non-uniform shear, a reversal of the
Douglas A. Foutch, P. C. Chang
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The treatment of shear lag in design
Thin-Walled Structures, 1990Abstract This paper presents a comprehensive guide to designers for dealing with the shear lag problem in structural design. First, the effect of shear lag on the elastic behaviour of box girders is addressed and simple design rules for estimating its influence are described.
B.A. Burgan, P.J. Dowling
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Journal of the Structural Division, 1981
An initial approximate method is presented to evaluate the shear lag phenomenon in reinforced concrete single-box girder bridges. Assuming an ideal cross-section and considering a symmetrical deformation of the top and bottom slabs, but preserving continuity conditions at the web-slab intersection points, a fourth order non-homogeneous differential ...
Bogdan O. Kuzmanović, H. James Graham
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An initial approximate method is presented to evaluate the shear lag phenomenon in reinforced concrete single-box girder bridges. Assuming an ideal cross-section and considering a symmetrical deformation of the top and bottom slabs, but preserving continuity conditions at the web-slab intersection points, a fourth order non-homogeneous differential ...
Bogdan O. Kuzmanović, H. James Graham
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Journal of Structural Engineering, 1996
Shear lag occurs not only in bridge decks and framed tubes, but also in shear/core walls. However, there have been relatively few studies on shear lag in wall structures. Moreover, most existing theories neglect shear lag in the webs and, although they are acceptable for bridge decks that normally have flanges wider than webs, they may not be ...
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Shear lag occurs not only in bridge decks and framed tubes, but also in shear/core walls. However, there have been relatively few studies on shear lag in wall structures. Moreover, most existing theories neglect shear lag in the webs and, although they are acceptable for bridge decks that normally have flanges wider than webs, they may not be ...
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A DESIGN AID FOR SHEAR LAG CALCULATIONS.
Proceedings of the Institution of Civil Engineers, 1980A semi-empirical method, termed the "3-bar method", for calculation of shear lag effects in box girders is described. Explicit solutions for different support and loading conditions are presented which enable the amplified edge stresses due to shear lag to be calculated directly.
HR EVANS, AR TAHERIAN
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Shear Lag in Box Girder Bridges
Journal of Bridge Engineering, 2002A finite-segment method for analyzing shear-lag effects in box girders is presented in this paper, with an assumption that the spanwise displacements of the flange plates are described by a third-power parabolic function. The governing differential equations for two generalized displacements are established according to the principle of minimum ...
Q. Z. Luo, Q. S. Li, J. Tang
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Fizicheskaya Mezomekhanika
Based on the analysis of deformation of a representative volume, a micromechanical model is derived to describe the elastic modulus of a composite reinforced with unidirectional short fibers under tension in the reinforcement direction. The analysis includes an exact solution to the hyperelastic equations for the deformed matrix and an approximate ...
G. M. Sevastyanov, A. A. Burenin
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Based on the analysis of deformation of a representative volume, a micromechanical model is derived to describe the elastic modulus of a composite reinforced with unidirectional short fibers under tension in the reinforcement direction. The analysis includes an exact solution to the hyperelastic equations for the deformed matrix and an approximate ...
G. M. Sevastyanov, A. A. Burenin
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