【摘要】 组合结构是重要的桥梁结构之一，其中钢-混凝土组合结构应用最多，混凝土组合结构的应用正不断增多。文章首先明确了所讨论的桥梁组合结构与组合结构桥梁的内涵，回顾了钢-混凝土组合梁、柱和拱的研究与应用进展。其中，传统钢-混凝土组合结构(如钢梁-混凝土板组合梁、钢管混凝土拱桥)的应用与研究持续深入，设计理论体系不断完善；新型组合结构发展迅猛，如波形钢腹板(杆)-混凝土组合梁、钢管混凝土组合梁、斜拉桥混合梁、钢管混凝土组合桥墩与桥塔、钢管混凝土美兰拱等，但研究成果与技术经验在相关规范中未能得到充分的反映，有待今后规范修订时补充完善。之后，介绍了不同混凝土材料组合而成的混凝土组合结构。随着混凝土材料科学与技术的进步，尤其是超高性能混凝土的出现，使混凝土性能差异不断增大，混凝土组合结构不断出现，在梁、柱、拱中均有应用。它们的结合面相容性较好，应用前景广阔，今后应加强相关研究。讨论认为，钢-混凝土组合结构的命名与分类应考虑结构的受力性能；混凝土组合结构的研究重点在于不同混凝土材性的差异性大小；混合结构的关键是结合段，且要将其与局部加强构造区别开来。最后，给出了桥梁组合结构的定义，并提出了重构公路桥梁设计规范体系的建议。更多还原

【Abstract】 The composite structure is one of the important bridge structures, in which the steel-concrete composite structure is the most widely used, and the application of concrete composite structure is increasing. The connotations are firstly clarified of bridge composite structure and composite bridge, research and application progress are then reviewed of steel-concrete composite beams, columns and arches. It can be found that the traditional steel-concrete composite structures, such as the composite beams of steel beam-concrete deck slab, and concrete-filled steel tube(CFST) arch bridge, have been applied continuously and studied in-depth, and the corresponding design theory system is constantly improved. The new composite structures such as corrugated steel web(truss rod)-concrete composite beams, CFST composite beams, hybrid girders in the cable-stayed bridges, CFST piers and pylons, CFST Melan arches, etc., have been developing rapidly. However, their research results and technical experiences have not been fully reflected in the relevant codes, which need to be supplemented and improved in future revisions. Then an introduction is made of the concrete composite structure which is composed of different concrete materials. With the progress of concrete material science and technology, the performance difference among various concrete has been enlarging, especially after the emergence of ultra-high performance concrete, which results in more and more application of concrete composite structure in beams, columns and arches. They have good compatibility and broad application prospects, and relevant research should be strengthened in the future. This research finds out that the naming and classification of steel-concrete composite structures should consider the mechanical properties of the structures; the research emphasis for concrete composite structures is the difference in the properties of different concretes; while for hybrid structures, the key issues are their composite segments, and they should be distinguished from the locally reinforced constructions. Finally, the definition of composite bridge structure is proposed and some suggestions are put forward to reconstruct the design code system for design of highway bridges in China.更多还原