UGC Approved Journal no 63975(19)

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Published in:

Volume 5 Issue 5
May-2018
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIR1805722


Registration ID:
181785

Page Number

722-730

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Title

Influence of Modulus of subgrade reaction on Structural behaviour of Integral Type Bridge

Abstract

Integral Abutment Bridges (IABs) are joint less and bearing less bridges whereby the deck is continuous and monolithic cast with abutment walls. The behaviour of Integral abutment bridge is interdependent between its structural components and soil medium, because complex behaviour of soil. IABs are complex structures due to the nonlinearity and uncertainties in bridge materials and soil boundaries. Modulus of subgrade reaction (Ks) of soil is the bearing capacity per unit settlement. The present work includes the modelling of Integral abutment bridges with simple soil springs stiffness based on earth pressure theory for the analysis. Three models of bridge length 50m, 100m and 150m consists of two lanes and two to four spans respectively analyze as per IRC guidelines. Temperatures change daily and seasonally the lengths of integral bridges increase and decrease, pushing the abutment against the approach fill and pulling it away. As a result, the bridge super-structure, the abutment and foundation soil are all subjected to cyclic loading, and understanding their interactions is important for effective design and satisfactory performance of integral bridges. Applying the earth pressure loads is to assign appropriate spring stiffness to the abutment to represent the soil properties. The earth pressure on the abutments can be considered using appropriate pressure coefficient Ks with different soil types. The final aim of this study is to propose modelling of integral abutment bridge system with influence of modulus of subgrade reaction which can allow predictions of dynamic response based on the results of static relative displacement studies coupled with simple soil stiffness and study observed trends in bending moment, shear force, deflection in longitudinal girders, super-structure behaviour, abutment displacement subjected to the dynamic loading using standard software SAP series Csi bridge. The conclusion shows that depending on the soil conditions, soil parameters and backfill stiffness the forces generated in the structure vary significantly.

Key Words

Integral abutment bridge, modulus of subgrade reaction, soil, Csi bridge

Cite This Article

"Influence of Modulus of subgrade reaction on Structural behaviour of Integral Type Bridge ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.722-730, MAY-2018, Available :http://www.jetir.org/papers/JETIR1805722.pdf

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2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"Influence of Modulus of subgrade reaction on Structural behaviour of Integral Type Bridge ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp722-730, MAY-2018, Available at : http://www.jetir.org/papers/JETIR1805722.pdf

Publication Details

Published Paper ID: JETIR1805722
Registration ID: 181785
Published In: Volume 5 | Issue 5 | Year May-2018
DOI (Digital Object Identifier):
Page No: 722-730
Country: ahmedabad, gujarat, India .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication


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