Title: SFEM Analysis and Study on Simplified Calculation for Load Distributions on Long Cantilevered Beams of Steel-Concrete Composite Spine Girder
Abstract: In this paper,the load distributions on long cantilever steel beams of the steel-concrete composite spine main girder of Hongshan Bridge located in Changsha City,are first calculated by using the spatial finite element method,the influence of load distributions on the cantilevered beams by the variation of load application point is analyzed,and it is educed that a analysis model of three beams for calculating the load distributions is acceptable.And then,a simplified calculation method of plane of elastic support continuous beam considering the variation of stiffness of cantilevered beams and how the steel box girder to restraint concrete slabs is proposed in calculation of the load distribution,and a few wheel loads distributing along the lateral direction of the bridge can be replaced by an equivalent concentrated load. Comparison of the above methods indicates that the simplified calculation method of plane is of a good precision and is feasible.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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