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

Authors

  • Chengqing Liu
    Affiliation

    School of Civil Engineering, Southwest Jiaotong University

  • Xiaodan Wei
    Affiliation

    School of Civil Engineering, Southwest Jiaotong University

  • Handan Wu
  • Qinfeng Li
    Affiliation

    School of Civil Engineering, Southwest Jiaotong University

  • Xiangyong Ni
    Affiliation

    School of Civil Engineering, Southwest Jiaotong University

https://doi.org/10.3311/PPci.9491

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 Online

2017-02-14

How to Cite

Liu, C., Wei, X., Wu, H., Li, Q., Ni, X. “Research on Shear Lag Effect of T-shaped Short-leg Shear Wall”, Periodica Polytechnica Civil Engineering, 61(3), pp. 602–610, 2017. https://doi.org/10.3311/PPci.9491

Issue

Section

Research Article