Techno Press

Steel and Composite Structures   Volume 18, Number 5, May 2015, pages 1239-1258
Simulating the construction process of steel-concrete composite bridges
Jie Wu, Dan M. Frangopol and Mohamed Soliman

Abstract     [Full Text]
    This paper presents a master-slave constraint method, which may substitute the conventional transformed-section method, to account for the changes in cross-sectional properties of composite members during construction and to investigate the time-dependent performance of steel-concrete composite bridges. The time-dependent effects caused by creep and shrinkage of concrete are considered by combining the age-adjusted effective modulus method and finite element analysis. An efficient computational tool which runs in AutoCAD environment is developed to simulate the construction process of steel-concrete composite bridges. The major highlight of the developed tool consists in a very convenient and user-friendly interface integrated in AutoCAD environment. The accuracy of the proposed method is verified by comparing its results with those provided by using the transformed-section method. Furthermore, the computational efficiency of the developed tool is demonstrated by applying it to a steel-concrete composite bridge.
Key Words
    steel-concrete composite bridge; simulation; construction; master-slave constraint; AutoCAD; creep; shrinkage
(1) Jie Wu:
Department of Building Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China;
(2) Dan M. Frangopol, Mohamed Soliman:
Department of Civil and Environmental Engineering, ATLSS Engineering Research Center, Lehigh University, 117 ATLSS Drive, Bethlehem, PA 18015-4729, USA.

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