中小跨径桥梁结构形式研究

Research on Structural Form of Medium and Small Span Bridges

以辽宁境内跨径为16m的简支梁桥为例,提出了热轧组合H型钢、钢板梁、热轧H型钢三种不同结构形式的钢-混组合梁桥,通过结构验算及经济指标综合对比分析,确定了热轧H型钢组合梁最为合理的桥梁结构形式,可为中小跨径钢-混组合梁桥的选型提供参考。

Taking the simply supported beam bridge with a span of 16m in Liaoning province as an example,three different structural forms of steel-concrete composite beam bridge are proposed:hot-rolled composite H-section steel,steel plate beam and hot-rolled H-section steel.The most reasonable bridge structural form of hot-rolled H-section steel composite beam is determined through the structural checking calculation and comprehensive comparative analysis of economic indicators,so as to provide reference for the selection of steel-concrete composite beam bridges with medium and small spans.