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Abstract

For curved steel box girder bridges, loads applied away from the shear center of the box can be separated into bending and torsional components. Associated with these flexural and torsional loads are three normal stresses, four shear stresses, and one bending stress. The least understood stresses are stresses (normal distortional warping stress, distortional warping shear stress and distortional transverse bending stress) associated with distorsion of the box cross section. By the addition of steel diaphragms, distortional stresses can be decreased. A practical approach to the distortional analysis of steel box girder bridge superstructures during construction is presented in this paper. The EBEF (equivalent beam on elastic foundation) method is an enhancement of the BEF (beam on elastic foundation) method, which has been widely used in design practice. Also presented herein are methodologies and results of numerical examples in comparison with the finite strip method.

Keywords

distortion box girders bridges steel analysis elastic foundations stiffness matrix curved beams

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References

American Association of State Highway and Transportation Officials (AASHTO 2000) Guide Specifications for Horizontally Curved Highway Bridges, Washington, D.C., 1993, Interim to 2000.

American Association of State Highway and Transportation Officials (AASHTO 2000) AASHTO LRFD Bridge Design Specifications, Washington, D.C., Second Edition, 1996, Interim to 2000.

Ontario Highway Bridge Design Code (OHBDC 1992) Ontario, Ministry of Transportation, Quality and Standards Division, 3rd Edition, 1992.

Fountain

R. S.

and Mattock

A. H.

(1968) “Composite steel-concrete multi-box girder bridges”, Proceedings, Canadian Conference on Structural Engineering, Canadian Steel Industries Construction Council, Toronto, Ontario, pp. 19–53.

Maffatt

K. R.

and Dowling

P. I.

(1975) “Shear lag in steel box girder bridges”, The Structural Engineers, London, Vol. 53, pp. 439–448.

Malcolm

D. I.

and Redwood

F. G.

(1970) “Shear lag in stiffened box girders”, Journal of the Structural Division, ASCE, Vol. 96, No. ST7, July, pp.1403–1415.

Branco

F. A.

and Green

(1984) “Bracing in completed composite box girder bridges”, Canadian Journal of Civil Engineering, Vol. 11, pp. 967–977.

Branco

F. A.

and Green

(1985) “Composite box girder bridge behavior during construction”, Journal of the Structural Division, ASCE, March, pp. 577–593.

Hsu

Y.T.

C. C.

and Schelling

D. R.

(1995) “EBEF method for distortional analysis of steel box girder bridges”, Journal of Structural Engineering, ASCE, Vol. 121, No. 3, March, pp. 557–566.

10.

Timoshenko

(1956) Strength of Materials, Part II.D, Van Nostrand Co., Inc., N.J.

11.

Narayanaswami

and Adelman

H. M.

(1974) “Inclusion of transverse shear deformation in finite element displacement formulations”, AIAA I. 12911, pp. 1613–1614.

12.

Hsu

Y. T.

(1989) The Development and Behavior of Vlasov Elements for the Modeling of Horizontally Curved Composite Box Girder Bridge Superstructures, Ph.D. Dissertation, Dept. of Civil Engineering, Univ. of Maryland, College Park.

13.

Vlasov

V. I.

(1961) “Thin-walled elastic beams,” Israel Program for Scientific Translation, Jerusalem, Israel.

14.

Wright

R. N.

Abdel-Samed

S. N.

and Robinson

A. R.

(1968) “BEF analogy for analysis of box girders” J. Structure Div., ASCE, Vol. 94, No. 7.

Application of EBEF Method for the Distortional Analysis of Steel Box Girder Bridge Superstructures during Construction

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