Combined Boundary Element/Finite Strip Analysis of Bridges
Publication: Journal of Structural Engineering
Volume 120, Issue 3
Abstract
In the present study, the boundary element method is employed to analyze the top slabs of rectangular or skewed composite slab‐on‐girder and box‐girder bridges, while the finite strip method is used to analyze the girders. The boundary elements and the finite strips are connected by transition strips. One side of the transition strip coincides with the nodal line of the adjacent finite strip and has the same degrees of freedom; while on the opposite side, a number of nodes coincides with the nodes of the neighboring boundary elements. Within the transition strip the displacements are expressed in terms of the degrees of freedom of the finite strip nodal line and the boundary element nodes by their corresponding shape functions. In this way, a fully compatible connection between slab and girders is achieved. This combined analysis is very effective in calculating the local bending moments due to moving vehicle wheel loads.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 3 • March 1994
Pages: 716 - 727
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jan 14, 1992
Published online: Mar 1, 1994
Published in print: Mar 1994
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