Simplified Engineering Method of Suspension Two-Span Pedestrian Steel Bridges With Flexible and Rigid Cables Under Action of Asymmetrical Loads

Giedrė Sandovič, Algirdas Juozapaitis, Romualdas Kliukas

Abstract


The article deals with two spans steel split-type one band pedestrian suspension bridge structure. Structural behaviour of such suspension member subjected to asymmetrical load has been discussed under the condition of temporary load influence imposed on one span out of two. Two structural solutions of one band suspension bridges have been considered: with completely flexible retaining elements, and in case of bending rigid. The article provides analytical expressions for calculations of the displacements of these asymmetrically loaded suspended elements, thrust forces and bending moments. Simplified analytical method accuracy of one band bridges is illustrated on the basis of performed numerical experiment Performed numerical experiment shows the resulting basis of simplified analytical method accuracy of one band bridges.


Keywords:

suspension steel bridges; pedestrian bridges; steel stress-ribbon; asymmetric loading; kinematic displacements; elastic displacements; bending stiffness; cables rigidity

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References


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DOI: 10.3846/bjrbe.2011.34

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