Statistics and Analysis of Steel-Concrete Composite Simply Supported Box Girder Bridges in china

Xiaobin He

doi:10.54097/hset.v28i.4052

Authors

Xiaobin He

DOI:

https://doi.org/10.54097/hset.v28i.4052

Keywords:

steel-concrete composite structure, simply supported box girder bridge, statistical analysis, design parameters.

Abstract

This paper collects the basic information of steel-concrete simply supported box girder bridges in China, analyzes And Summarizes its design parameters such as span, height-to-span ratio, bridge width, steel bottom plate thickness, steel web thickness, concrete roof thickness, and material grade. The results show that compared with the ordinary concrete beam bridge, the steel-concrete composite simply supported box girder bridge has a 70% reduction in web weight, and has a stronger spanning ability,and has a Lower beam height under the same span. The correlation equation between height-span ratio and span is fitted, which can be used as a reference for future design research of steel-concrete composite simply supported box girder bridges.

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