Calculation of Shear Lag in Cantilever Box Girder with Constant Depth

Yu Li Dong; Guang Yi Liu; Jun Li Lv

doi:10.4028/www.scientific.net/AMM.94-96.679

Paper Titles

Finite Element Analysis on the Joints of Multibarrel Tube-Confined Concrete Column
p.658

A Decision Making Model of Laying Mode of Urban Rail Transit
p.664

Numerical Study on Energy Dissipation and Hysteretic Behavior of Plate-Reinforced Connections
p.668

Experiment and Numerical Study on Shear Capacity of RC Beams
p.674

Calculation of Shear Lag in Cantilever Box Girder with Constant Depth
p.679

Analysis for the Stability of Irregular Wedge on Slope and its Engineering Application
p.686

Different Geological Conditions Affect the Results of Low Strain Integrity Testing of Piles
p.692

Model Test Research on Mechanism of Geogrid-Reinforced and Pile-Supported Embankment
p.697

A Method of Investigation of Fracture Ratio of Rock Based on Digital Image Analysis
p.702

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 94-96Calculation of Shear Lag in Cantilever Box Girder...

Calculation of Shear Lag in Cantilever Box Girder with Constant Depth

Abstract:

The physical explanations both of positive or negative shear lag are given in this paper. The shear lag effects occur attributing to the abrupt change of shear stress at junction upper the web. The abrupt change of shear stress or called shear stress jump changes the stress magnitude of the flange bending stress, which attenuates gradually at increasing distances from the web. Meanwhile, the abrupt change of shear stress from zero to the flange shear stress also influences the bending stress state at the centerline of the slab. The method to determine the shear lag has given, which is based on the Euler-Bernoulli elementary theory of bending. Considering the transversal distribution of the shear stress at the junction upper the web, the real flange bending stress could be calculated all on the section.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 94-96)

Pages:

679-685

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.94-96.679

Citation:

Cite this paper

Online since:

September 2011

Authors:

Yu Li Dong, Guang Yi Liu, Jun Li Lv

Keywords:

Abrupt Change, Bending Stress, Demarcation Point, Negative Shear Lag, Shear Stress Jump

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Chang, S. T., and Fang, Z. Z. (1987). "Negative Shear Lag in Cantilever Box Girder with Constant Depth." Journal of Structural Engineering, 113(1), 20-35.

DOI: 10.1061/(asce)0733-9445(1987)113:1(20)

Google Scholar

[2] Foutch, D. A., and Chang, P. C. (1982). "A Shear Lag Anomaly." Journal of the Structural Division, 108(ST7), 1653-1658.

DOI: 10.1061/jsdeag.0005995

Google Scholar

[3] Kuzmanovic, B. O., and Graham, H. J. (1981). "Shear Lag in Box Girders." Journal of the Structural Division, 107(ST9), 1701-1712.

DOI: 10.1061/jsdeag.0005777

Google Scholar

[4] Shushkevvich, K. W. (1991). "Negative Shear Lag Explained." Journal of Structural Engineering, 117(11), 3543-3545.

Google Scholar

[5] Song, Q.-g., and Scordelis, A. C. (1990). "Shear-lag Analysis of T-, I-, and BoxBeams." Journal of Structural Engineering, 116(5), 1290-1305.

Google Scholar

[6] Taherian, A. R., and Evans, H. R. (1977). "The Bar Simulation method for the calculation of Shear Lag in Multi-cell and Continuous Box Girders." Proc., Institution of Civil Engineers, Part 2, 63, 881-897.

DOI: 10.1680/iicep.1977.3084

Google Scholar

[7] Van, D., K., and Narasimham, S. V. (1976). "Shear Lag in Shallow Wide-Flanged Box Girders." Journal of the Structural Division, 102(10), 1969-1979.

DOI: 10.1061/jsdeag.0004453

Google Scholar