Research on Shear Lag Effect of T-shaped Short-leg Shear Wall

  • Chengqing Liu School of Civil Engineering, Southwest Jiaotong University
  • Xiaodan Wei School of Civil Engineering, Southwest Jiaotong University
  • Xiangyong Ni School of Civil Engineering, Southwest Jiaotong University
  • Guangjie He School of Civil Engineering, Southwest Jiaotong University

Abstract

Longitudinal displacement of cross section of T-shaped shortlegshear wall was simplified to three parts: shear lag warpingdisplacement, plane section bending displacement and axialdisplacement. Shear lag warping deformation was assumed ascubic parabola distribution along flange, and based on minimumpotential energy principle, differential equations were deduced;with boundary conditions, a calculation theory for shear lageffect was established. With two T-shaped short-leg shear wallmodels, vertical stresses of flanges were obtained by calculationtheory and finite element calculation respectively, and comparisonbetween theoretical analysis results and numerical calculationresults was made. At last, parameter analysis was carriedout, and the influence of shear force, shear span ratio andheight-thickness ratio on shear lag coefficient was obtained.Research shows that numerical calculation results are in goodagreement with theoretical analysis results, and each parameterhas different influence on shear lag coefficient.

Keywords

T-shaped short-leg shear wall; minimum potential energy principle; shear lag effect; parameter analysis
Published
14-02-2017
How to Cite
LIU, Chengqing et al. Research on Shear Lag Effect of T-shaped Short-leg Shear Wall. Periodica Polytechnica Civil Engineering, [S.l.], v. 61, n. 3, p. 602-610, feb. 2017. ISSN 1587-3773. Available at: <https://pp.bme.hu/ci/article/view/9491>. Date accessed: 26 sep. 2017. doi: https://doi.org/10.3311/PPci.9491.
Section
Research Article