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Keywords: composite steel-concrete bridge, three-dimensional finite element analysis, full scale loading test, solid elements, shell elements, concrete barriers, bridge pier.

Summary

In this study, a composite steel-concrete bridge located in Bangkok, Thailand is considered, namely the Rama III - Sathu Pradit Bridge. The full scale loading test results of these real bridges under Thai truck loading are employed to verify the three-dimensional finite element model of the bridges. The finite element computer package, called MARC, was used to perform three-dimensional finite element analysis of the bridges. All elements are considered to be linearly elastic, and the assumption of small strain and displacement is adopted. The bridge is modelled by solid and shell elements for the concrete and the steel part respectively. The influences of the concrete barriers, the displacement of the bridge pier and the Young's modulus of the concrete are considered explicitly in the modelling. It is found that the presence of a concrete barrier plays a significant role in the finite element modelling. Moreover, the proposed spring simulates the behaviour of the settlement from the pier. The effect of the Young's modulus of the concrete and the barrier is also considered. From the large discrepancy between the measured results from the field test of the bridge under truck loads and the calculated results using the current design practice, it is clear that the application of the finite element analysis to the bridge design should be more used in order to yield more economical results. Furthermore, the model used in the finite element analysis can provide a rational tool for the understanding of the behaviour of composite steel-concrete bridges.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 88 PROCEEDINGS OF THE NINTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and M. Papadrakakis Paper 286 Finite Element Analysis of a Composite Steel-Concrete Bridge T. Chaisomphob¹, J. Sa-nguanmanasak¹ and E. Yamaguchi² ¹Sirindhorn International Institute of Technology, Thammasat University, Bangkok, Thailand ²Department of Civil Engineering, Kyushu Institute of Technology, Kita-Kyushu, Japan doi:10.4203/ccp.88.286 purchase the full-text of this paper Full Bibliographic Reference for this paper T. Chaisomphob, J. Sa-nguanmanasak, E. Yamaguchi, "Finite Element Analysis of a Composite Steel-Concrete Bridge", in B.H.V. Topping, M. Papadrakakis, (Editors), "Proceedings of the Ninth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 286, 2008. doi:10.4203/ccp.88.286 Keywords: composite steel-concrete bridge, three-dimensional finite element analysis, full scale loading test, solid elements, shell elements, concrete barriers, bridge pier. Summary In this study, a composite steel-concrete bridge located in Bangkok, Thailand is considered, namely the Rama III - Sathu Pradit Bridge. The full scale loading test results of these real bridges under Thai truck loading are employed to verify the three-dimensional finite element model of the bridges. The finite element computer package, called MARC, was used to perform three-dimensional finite element analysis of the bridges. All elements are considered to be linearly elastic, and the assumption of small strain and displacement is adopted. The bridge is modelled by solid and shell elements for the concrete and the steel part respectively. The influences of the concrete barriers, the displacement of the bridge pier and the Young's modulus of the concrete are considered explicitly in the modelling. It is found that the presence of a concrete barrier plays a significant role in the finite element modelling. Moreover, the proposed spring simulates the behaviour of the settlement from the pier. The effect of the Young's modulus of the concrete and the barrier is also considered. From the large discrepancy between the measured results from the field test of the bridge under truck loads and the calculated results using the current design practice, it is clear that the application of the finite element analysis to the bridge design should be more used in order to yield more economical results. Furthermore, the model used in the finite element analysis can provide a rational tool for the understanding of the behaviour of composite steel-concrete bridges. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £145 +P&P)
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