Numerical simulation of wind-induced forces on bridge deck sections of long-span bridges

    Authors

    O. U. Onyemelukwe; M. A. M. Torkamani;H. R. Bosch

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Comput. Struct.

    Keywords

    Computer Science, Interdisciplinary Applications; Engineering, Civil

    Abstract

    A procedure for numerically simulating wind-induced forces on bridge deck sections is presented in this paper. The procedure entails solving the governing: flow equations of motion using the finite-difference method. The two-dimensional, unsteady, incompressible, laminar form of the Navier-Stokes flow equations of motion are solved in a body-fitted curvilinear coordinate system. Numerical solution of the flow equations of motion yield the unsteady values of horizontal, u; and vertical, v, components of the flow velocity vector, V, as well as the flow field pressure distribution. The surface integral of the wall pressure around the body is then evaluated, in order to obtain the desired wind-induced forces on the bridge deck sections. The procedure has been applied to the bridge deck section Of a proposed cable-stayed bridge over the Chesapeake and Delaware canal. The simulated wind forces obtained from using two different grid sizes are presented and discussed. Barring computer memory and computational time constraints resulting from use on an IBM-PC with a 486 micro-processor,; the force values seem reasonable when compared with the mean values from wind tunnel testing. Copyright (C) 1996 Elsevier Science Ltd.

    Journal Title

    Computers & Structures

    Volume

    62

    Issue/Number

    4

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    667

    Last Page

    679

    WOS Identifier

    WOS:A1997WD04500009

    ISSN

    0045-7949

    Share

    COinS