Symplectic Analysis of the Shear Lag Phenomenon in a T-Beam

被引：13

作者：

Qin, Xu Xi ^{[1
]}

Liu, Han Bing ^{[1
]}

Wang, Shu Juan ^{[2
]}

Yan, Zhen Hua ^{[3
]}

机构：

[1] Jilin Univ, Transportat & Traff Coll, Changchun 130025, Peoples R China

[2] Jilin Prov Commun Sci Res Inst, Changchun 130012, Jilin, Peoples R China

[3] Jilin Univ, Coll Mech Sci & Engn, Changchun 130025, Peoples R China

来源：

JOURNAL OF ENGINEERING MECHANICS | 2015年 / 141卷 / 05期

关键词：

BOX-GIRDER; DEFORMATION;

D O I：

10.1061/(ASCE)EM.1943-7889.0000882

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The principal purpose of this paper is to develop a new analytical method for the shear lag problem of T-beams. The flange slab of a T-beam is simplified into a plane stress plate. A system of Hamilton dual equations of the flange slab using symplectic elasticity theory can be obtained. Analytical solutions of the flange slab under uniform or linear shear force applied on the entire slab length are obtained by solving the equation. Based on the solution, the cause of the positive shear lag and negative shear lag phenomenon are studied in this paper. Theoretical research indicates that the method is superior for analyzing the shear lag phenomenon. The analytical solution has been validated by comparison with the beam solution and FEM solution of a cantilever T-beam subjected to a uniform load. (C) 2014 American Society of Civil Engineers.

引用

页数：15

共 49 条

[1] A method of analysis for end and transitional effects in anisotropic cylinders [J].

Alpdogan, C. ;

Dong, S. B. ;

Taciroglu, E. .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2010, 47 (7-8) :947-956

[2]

[Anonymous], ANSYS 9 0 COMP SOFTW

[3]

[Anonymous], 1970, Theory of elasticity (3rd Edition)

[4] Classical, Refined, and Component-Wise Analysis of Reinforced-Shell Wing Structures [J].

Carrera, E. ;

Pagani, A. ;

Petrolo, M. .

AIAA JOURNAL, 2013, 51 (05) :1255-1268

[5] Refined beam elements with arbitrary cross-section geometries [J].

Carrera, E. ;

Giunta, G. ;

Nali, P. ;

Petrolo, M. .

COMPUTERS & STRUCTURES, 2010, 88 (5-6) :283-293

[6] Much ado about shear correction factors in Timoshenko beam theory [J].

Dong, S. B. ;

Alpdogan, C. ;

Taciroglu, E. .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2010, 47 (13) :1651-1665

[7] Non-uniform warping including the effects of torsion and shear forces. Part I: A general beam theory [J].

El Fatmi, Rached .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2007, 44 (18-19) :5912-5929

[8] PREDICTION OF SHEAR LAG EFFECT IN BOX GIRDERS [J].

EVANS, HR ;

TAHERIAN, AR .

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS PART 2-RESEARCH AND THEORY, 1977, 63 (MAR) :69-92

[9] SHEAR LAG IN COMPOSITE BOX GIRDERS OF COMPLEX CROSS-SECTIONS [J].

EVANS, HR ;

AHMAD, MKH ;

KRISTEK, V .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 1993, 24 (03) :183-204

[10] A DESIGN AID FOR SHEAR LAG CALCULATIONS [J].

EVANS, HR ;

TAHERIAN, AR .

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS PART 2-RESEARCH AND THEORY, 1980, 69 (JUN) :403-424

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