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Analysis of Post-tensioned Slab Bridge by Means of Specially Orthotropic Laminates Theory  

Han, Bong Koo (서울산업대학교 구조공학과)
Kim, Yun Pyo (서울산업대학교 구조공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.1, 2002 , pp. 105-111 More about this Journal
Abstract
A post-tensioned slab bridge is analyzed by the specially orthotropic laminates theory. Both the geometry and the material of the cross section of the slab are considered symmetrical with respect to the mid-surface so that the bending extension coupling stiffness, $B_{ij}=0$, and $D_{16}=D_{26}=0$. Each longitudinal and transverse steel layer is regarded as a lamina, and material constants of each lamina is calculated by the use of rule of mixture. This bridge with simple support is under uniformly distributed vertical and axial loads. In this paper, the finite difference method and the beam theory are used for analysis. The result of beam analysis is modified to obtain the solution of the plate analysis. The result of this paper can be used for post-tensioned slab bridge analysis by the engineers with undergraduate study in near future.
Keywords
post-tensioned slab bridge; specially orthotropic laminates theory; beam theory; plate theory;
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