Formulas for Shear‐Lag Effect of T‐, I‐ and Box Beams

1990 ◽  
Vol 116 (5) ◽  
pp. 1306-1318 ◽  
Author(s):  
Qi‐gen Song ◽  
Alexander C. Scordelis
Keyword(s):  
Shear Lag ◽  
Shear Lag Effect ◽  
Lag Effect ◽  
Box Beams

Ultimate load analysis of thin-walled box beams considering shear lag effect

2004 ◽  
Vol 42 (8) ◽  
pp. 1199-1210 ◽  
Author(s):  
Yaping Wu ◽  
Shaoshui Yu ◽  
Chonghui Shi ◽  
Jianjun Li ◽  
Yuanming Lai ◽  
...  
Keyword(s):  
Ultimate Load ◽  
Shear Lag ◽  
Shear Lag Effect ◽  
Lag Effect ◽  
Box Beams ◽  
Thin Walled ◽  
Load Analysis

Influence of Compression-Flexure to Shear Lag Effect of Box Beam

2011 ◽  
Vol 181-182 ◽  
pp. 857-860 ◽  
Author(s):  
Qiang Su ◽  
Ya Ping Wu
Keyword(s):  
Stiffness Matrix ◽  
Elastic Stiffness ◽  
Shear Lag ◽  
Shear Lag Effect ◽  
Finite Element Program ◽  
Box Beam ◽  
Lag Effect ◽  
Element Program ◽  
Box Beams ◽  
Minimum Potential

In this paper, the differential equations of box beams are established based on the principle of minimum potential energy and the variational method. The elastic stiffness matrix and geometric stiffness matrix considering shear lag and compression-flexure effects are induced in this paper. And a finite element program is developed. Then the influence of compression-flexure effects to shear lag effect of box beam is analyzed.

scholarly journals Parametric Analysis of the Shear Lag Effect in Tube Structural Systems of Tall Buildings

2020 ◽  
Vol 11 (1) ◽  
pp. 278
Author(s):  
Ivan Hafner ◽  
Anđelko Vlašić ◽  
Tomislav Kišiček ◽  
Tvrtko Renić
Keyword(s):  
Parametric Analysis ◽  
Numerical Models ◽  
Tall Buildings ◽  
Structural Systems ◽  
Structural Elements ◽  
Structural System ◽  
Shear Lag ◽  
Shear Lag Effect ◽  
Lag Effect ◽  
Secondary Structural Elements

Horizontal loads such as earthquake and wind are considered dominant loads for the design of tall buildings. One of the most efficient structural systems in this regard is the tube structural system. Even though such systems have a high resistance when it comes to horizontal loads, the shear lag effect that is characterized by an incomplete and uneven activation of vertical elements may cause a series of problems such as the deformation of internal panels and secondary structural elements, which cumulatively grow with the height of the building. In this paper, the shear lag effect in a typical tube structure will be observed and analyzed on a series of different numerical models. A parametric analysis will be conducted with a great number of variations in the structural elements and building layout, for the purpose of giving recommendations for an optimal design of a tube structural system.

Shear lag effect on stress concentration in simply-supported stiffened box girder

2021 ◽  
Vol 183 ◽  
pp. 106715
Author(s):  
Eiki Yamaguchi ◽  
Naoto Kittaka ◽  
Buchit Maho ◽  
Piti Sukontasukkul
Keyword(s):  
Stress Concentration ◽  
Shear Lag ◽  
Shear Lag Effect ◽  
Box Girder ◽  
Simply Supported ◽  
Lag Effect

Theoretical and Experimental Investigations on Shear Lag Effect of Double-Box Composite Beam with Wide Flange under Symmetrical Loading

2015 ◽  
Vol 31 (6) ◽  
pp. 653-663 ◽  
Author(s):  
S.-W. Hu ◽  
J. Yu ◽  
Y.-Q. Huang ◽  
S.-Y. Xiao
Keyword(s):  
Composite Beam ◽  
Experimental Investigations ◽  
Shear Lag ◽  
Shear Lag Effect ◽  
Theoretical Derivation ◽  
Energy Principle ◽  
Lag Effect ◽  
Symmetrical Loading ◽  
Stress Behaviors ◽  
Minimum Potential Energy Principle

ABSTRACTA new type of steel-concrete composite beam with double-box cross-section is proposed in this paper. In order to investigate stress behaviors and deflection characteristics of such composite beam with wide flange considering the shear lag effect, theoretical analysis and experimental study are launched simultaneously. Based on the minimum potential energy principle, governing differential equations in view of the shear lag effect are deduced by energy variational method, and analytical solutions of it's stress and deflection under the effect of symmetrical loading are calculated. The preceding analyses show that relative error is less than 14.71%, with a good agreement, and farther show that this method of theoretical derivation, which is used for analyzing shear lag effect of composite beam with wide flange, has certain reference and guidance.

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