钢-混组合结构桥梁2019年度研究进展

State-of-the-art review of steel-concrete composite bridges in 2019

钢-混凝土组合结构是土木工程中一种主要组合结构,能充分发挥混凝土和钢材的性能,可作为一种可持续发展的桥梁结构。近年来,随着绿色建造以及可持续建造理念的普及,钢-混组合结构桥梁在公路、铁路桥梁中所占比例逐步提高,学者们从多个方面开展了对钢-混组合结构桥梁的科学研究和工程应用。为了促进对该结构更加全面、深入的研究,指导钢-混凝组合结构在桥梁建设中更切合实际的应用与推广,对2019年度钢-混组合结构整体力学行为、钢-混组合结构剪力键、钢-UHPC组合结构、钢管混凝土结构及波形钢腹板混凝土组合结构5个方面的最新研究进行梳理与总结,并对未来钢-混组合结构研究热点和方向进行展望。

Steel-concrete composite structure is one of the main structures in the field of civil engineering construction,which can give full play to the properties of concrete and steel,thus leading to a sustainable development direction of the bridge structure.In recent years,with the popularization of the concept of green construction and sustainable construction,the proportion of steel-concrete composite bridges in highway and railway bridges has gradually increased.Consequently,many scholars have carried out scientific research and engineering applications on various aspects of steel-concrete composite structural bridges.In order to promote comprehensive and further basic research on this structure,and to guide the practical application in bridge construction,the latest domestic and foreign researches in 2019 were reviewed and summarized.The researches include the overall mechanical behavior of steel-concrete composite structures,shear connectors of steel-concrete composite structures,steel-UHPC composite structures,concrete-filled steel tube structures and steel-concrete composite structures with corrugated steel webs.Based on the latest research progress above,the future research focuses and directions of steel-concrete composite structure are prospected.