Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Longitudinally-segmented steel-concrete mixed prefabricated small box girder bridge and construction method
The invention discloses a longitudinally-segmented steel-concrete mixed prefabricated small box girder bridge and a construction method. More than two mixed prefabricated small box girders are arranged on the bridge in the transverse direction of the bridge; every two adjacent mixed prefabricated small box girders are connected through a small box girder transverse cast-in-place section and a transverse field welding seam; each mixed prefabricated small box girder is formed by adopting a segment method and is divided into six types of segments in the bridge direction, the six types of segments comprise a side fulcrum segment, a cross beam prefabricated segment, a side span heightening segment, a middle fulcrum cross beam segment, a middle span heightening segment and a steel-concrete combined girder segment, and the six types of segments are all tightly connected together after being tensioned through prestressed steel beams arranged in the bridge direction. During construction, the segments of each mixed prefabricated small box girder are manufactured, spliced and transversely connected in sequence. According to the invention, the transportation and hoisting of the small box girder can be completed through conventional equipment, the construction difficulty is reduced, and the construction speed is increased.
本发明公开了纵向分段钢混凝土混合预制小箱梁桥及施工方法；桥梁在横桥向布置两道以上混合预制小箱梁；每两个相邻的混合预制小箱梁之间均通过小箱梁横向现浇段及横向现场焊接缝连接；每一混合预制小箱梁均采用节段法制造成形，在在顺桥向分为6种类型的节段，包括边支点节段，横梁预制段，边跨变高段，中支点横梁段，中跨变高段和钢‑混组合梁段，均通过沿顺桥向设置的预应力钢束张拉后紧密地连接在一起。施工时，依次对每一混合预制小箱梁的节段进行制造、拼接和横向连接。本发明的而应用能够确保小箱梁的运输及吊装均可通过常规设备完成，降低施工难度，提高施工速度。
Longitudinally-segmented steel-concrete mixed prefabricated small box girder bridge and construction method
The invention discloses a longitudinally-segmented steel-concrete mixed prefabricated small box girder bridge and a construction method. More than two mixed prefabricated small box girders are arranged on the bridge in the transverse direction of the bridge; every two adjacent mixed prefabricated small box girders are connected through a small box girder transverse cast-in-place section and a transverse field welding seam; each mixed prefabricated small box girder is formed by adopting a segment method and is divided into six types of segments in the bridge direction, the six types of segments comprise a side fulcrum segment, a cross beam prefabricated segment, a side span heightening segment, a middle fulcrum cross beam segment, a middle span heightening segment and a steel-concrete combined girder segment, and the six types of segments are all tightly connected together after being tensioned through prestressed steel beams arranged in the bridge direction. During construction, the segments of each mixed prefabricated small box girder are manufactured, spliced and transversely connected in sequence. According to the invention, the transportation and hoisting of the small box girder can be completed through conventional equipment, the construction difficulty is reduced, and the construction speed is increased.
本发明公开了纵向分段钢混凝土混合预制小箱梁桥及施工方法；桥梁在横桥向布置两道以上混合预制小箱梁；每两个相邻的混合预制小箱梁之间均通过小箱梁横向现浇段及横向现场焊接缝连接；每一混合预制小箱梁均采用节段法制造成形，在在顺桥向分为6种类型的节段，包括边支点节段，横梁预制段，边跨变高段，中支点横梁段，中跨变高段和钢‑混组合梁段，均通过沿顺桥向设置的预应力钢束张拉后紧密地连接在一起。施工时，依次对每一混合预制小箱梁的节段进行制造、拼接和横向连接。本发明的而应用能够确保小箱梁的运输及吊装均可通过常规设备完成，降低施工难度，提高施工速度。
Longitudinally-segmented steel-concrete mixed prefabricated small box girder bridge and construction method
纵向分段钢混凝土混合预制小箱梁桥及施工方法
KONG PU (Autor:in) / HU FANGJIAN (Autor:in) / LU YUANCHUN (Autor:in) / CHEN LONG (Autor:in)
01.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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