2000
DOI: 10.1061/(asce)0733-9399(2000)126:10(1111)
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Shear Lag of Thin-Walled Curved Box Girder Bridges

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Cited by 59 publications
(24 citation statements)
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“…However, under most circumstances, especially for wide box girders, the shear deformation in the plates produces non-uniform distributions of the membrane forces in longitudinal as well as transverse directions along the width and span. This phenomenon is called shear lag effect [3][4][5][6]. Thus, the elementary beam theory is no longer suitable for the membrane force analysis of wide box girders.…”
Section: Introductionmentioning
confidence: 97%
“…However, under most circumstances, especially for wide box girders, the shear deformation in the plates produces non-uniform distributions of the membrane forces in longitudinal as well as transverse directions along the width and span. This phenomenon is called shear lag effect [3][4][5][6]. Thus, the elementary beam theory is no longer suitable for the membrane force analysis of wide box girders.…”
Section: Introductionmentioning
confidence: 97%
“…In an analogy with Timoshenko beam theory, when shear deformation is of importance, the so-called secondary torsional shear deformation effect (STSDE) [3,4] has to be taken into account as well for curved beams. Moreover, the additional secondary torsional warping due to STSDE can cause similar effects with shear lag in flexure [5][6][7][8]. Thus, the influence of shear lag phenomenon due to both flexure and torsion, which is not constant along the beam length, should also be considered for curved geometries.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the influence of shear lag phenomenon due to both flexure and torsion, which is not constant along the beam length, should also be considered for curved geometries. The early curved-beam models that have been formulated are either restricted to the analysis of only the beam behavior in the plane of curvature [9] or do not take into account secondary shear deformation effect caused by nonuniform warping [8,10], while other efforts consider only doubly symmetric cross sections [11]. In general, even in recent or past years, although the planar problem has been extensively studied, comparatively little work has been done concerning the general three dimensional, non-planar, or coupled lateral-torsional response of curved beams [9,[11][12][13][14].…”
Section: Introductionmentioning
confidence: 99%
“…The developed methods can be grouped into four: (1) the exact methods based on the folded-plate theory [5], (2) the approximate method based on the bar simulation theory [6,7], (3) the energy method based on the variational principle [8][9][10][11][12], and (4) the finite strip method based on numerical theory [13]. The energy approach has been proven to be a simple and practical method in shear lag analysis [14][15][16][17]. Reissner [11,12] used the energy variational method to study the shear lag problem of doubly symmetric rectangular box girders, assuming the longitudinal displacement along transverse direction is described by a parabolic curve.…”
Section: Introductionmentioning
confidence: 99%