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Skew Effect on Box Girder Bridge

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Advances in Geotechnics and Structural Engineering

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 143))

Abstract

This study presents the effect of the skew angle on a simply supported box girder bridge. CSiBridge v.20 software is used for the analysis which is based on the finite element method. The mesh size is selected from the convergence study. The variation of absolute bending moment, shear force and vertical deflection due to dead load and live load for both girders is evaluated. The bridge having skew angles up to 20° can be analysed and designed as a straight one. The equations for bending moment ratio, shear force ratio and vertical deflection ratio are deduced so that the forces and deflection of skew box girder bridges can be determined directly from the straight one. This study's results may be useful to the designer for a preliminary analysis of skew bridges.

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Abbreviations

θ:

Skew angle

BMDL:

Bending moment (maximum) due to DL

SFDL:

Shear force (maximum) due to DL

VDDL:

Vertical deflection (maximum) due to DL

BMRDL(o):

Bending moment ratio due to DL for outer girder

BMRLL(o):

Bending moment ratio due to LL for outer girder

SFRDL(o):

Shear force ratio due to DL for outer girder

SFRLL(o):

Shear force ratio due to LL for outer girder

VDRDL(o):

Vertical deflection ratio due to DL for outer girder

VDRLL(o) :

Vertical deflection ratio due to LL for outer girder 

BMLL:

Bending moment (maximum) due to LL

SFLL:

Shear force (maximum) due to LL

VDLL:

Vertical deflection (maximum) due to LL

BMRDL(i):

Bending moment ratio due to DL for inner girder

BMRLL(i):

Bending moment ratio due to LL for inner girder

SFRDL(i):

Shear force ratio due to DL for inner girder

SFRLL(i):

Shear force ratio due to LL for inner girder

VDRDL(i):

Vertical deflection ratio due to DL for inner girder

VDRLL(i):

Vertical deflection ratio due to LL for inner girder

References

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Acknowledgements

The authors acknowledge the financial support offered under TEQIP by the MNNIT Allahabad.

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Authors and Affiliations

  1. Civil Engineering Department, MNNIT, Allahabad, U.P., 211004, India

    Preeti Agarwal, P. Pal & P. K. Mehta

Authors
  1. Preeti Agarwal
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  2. P. Pal
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  3. P. K. Mehta
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Corresponding author

Correspondence to Preeti Agarwal .

Editor information

Editors and Affiliations

  1. Edith Cowan University, Joondalup, WA, Australia

    Sanjay Kumar Shukla

  2. Monash University Malaysia, Selangor, Malaysia

    Sudharshan N. Raman

  3. Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, Delhi, India

    Bishwajit Bhattacharjee

  4. Department of Civil Engineering, Amity University, New Delhi, Delhi, India

    J. Bhattacharjee

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Agarwal, P., Pal, P., Mehta, P.K. (2021). Skew Effect on Box Girder Bridge. In: Kumar Shukla, S., Raman, S.N., Bhattacharjee, B., Bhattacharjee, J. (eds) Advances in Geotechnics and Structural Engineering. Lecture Notes in Civil Engineering, vol 143. Springer, Singapore. https://doi.org/10.1007/978-981-33-6969-6_5

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  • DOI: https://doi.org/10.1007/978-981-33-6969-6_5

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-33-6968-9

  • Online ISBN: 978-981-33-6969-6

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