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A platform for research: civil engineering, architecture and urbanism
Connecting structure for widening concrete box girder through steel box girder and construction method
The invention discloses a connecting structure for widening a concrete box girder through a steel box girder and a construction method, and the connecting structure comprises a to-be-widened concrete box girder, a newly-built steel box girder and a new and old bridge connecting part connected between the to-be-widened concrete box girder and the newly-built steel box girder, the new and old bridge connecting part comprises a concrete structure, and a T-shaped steel plate, an upper-layer transverse reinforcing steel bar, a lower-layer transverse reinforcing steel bar and a vertical reinforcing steel bar which are arranged in concrete. According to the connecting structure, the transverse integrity of the widened bridge can be improved, the stress performance of the weakest double-side flange part of the connection between the new bridge and the old bridge is improved, and the secondary damage of the part caused by repeated rolling of a vehicle is avoided.
一种用于钢箱梁拓宽混凝土箱梁的连接构造及施工方法，所述连接构造包括：包括待加宽混凝土箱梁、新建钢箱梁和连接在待加宽混凝土箱梁和新建钢箱梁之间的新旧桥梁连接部，其中，所述新旧桥梁连接部包括混凝土结构以及设置在混凝土内的T字形钢板、上层横向钢筋、下层横向钢筋和竖向钢筋。本发明能提高拓宽后桥梁的横向整体性，改善新旧桥连接最薄弱的双侧翼缘部分受力性能，避免因车辆反复碾压时在该部位出现次生病害。
Connecting structure for widening concrete box girder through steel box girder and construction method
The invention discloses a connecting structure for widening a concrete box girder through a steel box girder and a construction method, and the connecting structure comprises a to-be-widened concrete box girder, a newly-built steel box girder and a new and old bridge connecting part connected between the to-be-widened concrete box girder and the newly-built steel box girder, the new and old bridge connecting part comprises a concrete structure, and a T-shaped steel plate, an upper-layer transverse reinforcing steel bar, a lower-layer transverse reinforcing steel bar and a vertical reinforcing steel bar which are arranged in concrete. According to the connecting structure, the transverse integrity of the widened bridge can be improved, the stress performance of the weakest double-side flange part of the connection between the new bridge and the old bridge is improved, and the secondary damage of the part caused by repeated rolling of a vehicle is avoided.
一种用于钢箱梁拓宽混凝土箱梁的连接构造及施工方法，所述连接构造包括：包括待加宽混凝土箱梁、新建钢箱梁和连接在待加宽混凝土箱梁和新建钢箱梁之间的新旧桥梁连接部，其中，所述新旧桥梁连接部包括混凝土结构以及设置在混凝土内的T字形钢板、上层横向钢筋、下层横向钢筋和竖向钢筋。本发明能提高拓宽后桥梁的横向整体性，改善新旧桥连接最薄弱的双侧翼缘部分受力性能，避免因车辆反复碾压时在该部位出现次生病害。
Connecting structure for widening concrete box girder through steel box girder and construction method
一种用于钢箱梁拓宽混凝土箱梁的连接构造及施工方法
LIANG YUXIONG (author) / FENG QINGSONG (author) / WU BITAO (author) / ZHANG LING (author)
2021-07-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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