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Beam-arch combined bridge adopting steel truss-concrete prefabricated combined beam section and construction method
The invention discloses a beam-arch combined bridge adopting a steel truss-concrete prefabricated combined beam section and a construction method, the beam-arch combined bridge structurally comprises a concrete beam section, the steel truss-concrete prefabricated combined beam section and a beam section combining area, the steel truss-concrete prefabricated combined beam section is composed of a plurality of prefabricated sections in the bridge direction, the adjacent prefabricated sections are fixed through multiple connecting structures, and each prefabricated section comprises a steel truss part and a concrete part; the construction method comprises the following steps that the steel truss part is pre-machined in a factory; the concrete part and the steel truss part are combined to form a prefabricated section; a concrete beam section and a beam section combination area are constructed on site; the prefabricated sections are mounted, and the sections are connected; the prestressed steel beams are tensioned; arch ribs are constructed; and suspenders are mounted. The steel truss-concrete composite beam is used for replacing a concrete main beam for the main beam sections of the midspan part, the sections are light in weight and convenient to prefabricate and transport in a factory, the number of the sections is small, the construction speed is high, the influence on a spanned object is small, and the applicable span and the application range of the beam-arch composite bridge are improved.
本发明公开了一种采用钢桁‑砼预制结合梁段的梁拱组合桥及施工方法，其结构包括混凝土梁段、钢桁‑混凝土预制结合梁段和梁段结合区，所述钢桁‑混凝土预制结合梁段由多个顺桥向的预制节段组成，相邻预制节段之间由多重连接结构进行固定，预制节段包括钢桁部和混凝土部；其施工方法，包括以下步骤：工厂内预加工钢桁部；混凝土部与钢桁部结合形成预制节段；现场施工混凝土梁段和梁段结合区；安装预制节段并进行节段连接；张拉预应力钢束；施工拱肋；安装吊杆。本发明中跨部分主梁节段用钢桁—混凝土结合梁替代混凝土主梁，节段重量轻，便于工厂预制和运输，且节段个数少、施工速度快，对跨越对象影响小，并提高了梁拱组合桥的适用跨度和应用范围。
Beam-arch combined bridge adopting steel truss-concrete prefabricated combined beam section and construction method
The invention discloses a beam-arch combined bridge adopting a steel truss-concrete prefabricated combined beam section and a construction method, the beam-arch combined bridge structurally comprises a concrete beam section, the steel truss-concrete prefabricated combined beam section and a beam section combining area, the steel truss-concrete prefabricated combined beam section is composed of a plurality of prefabricated sections in the bridge direction, the adjacent prefabricated sections are fixed through multiple connecting structures, and each prefabricated section comprises a steel truss part and a concrete part; the construction method comprises the following steps that the steel truss part is pre-machined in a factory; the concrete part and the steel truss part are combined to form a prefabricated section; a concrete beam section and a beam section combination area are constructed on site; the prefabricated sections are mounted, and the sections are connected; the prestressed steel beams are tensioned; arch ribs are constructed; and suspenders are mounted. The steel truss-concrete composite beam is used for replacing a concrete main beam for the main beam sections of the midspan part, the sections are light in weight and convenient to prefabricate and transport in a factory, the number of the sections is small, the construction speed is high, the influence on a spanned object is small, and the applicable span and the application range of the beam-arch composite bridge are improved.
本发明公开了一种采用钢桁‑砼预制结合梁段的梁拱组合桥及施工方法，其结构包括混凝土梁段、钢桁‑混凝土预制结合梁段和梁段结合区，所述钢桁‑混凝土预制结合梁段由多个顺桥向的预制节段组成，相邻预制节段之间由多重连接结构进行固定，预制节段包括钢桁部和混凝土部；其施工方法，包括以下步骤：工厂内预加工钢桁部；混凝土部与钢桁部结合形成预制节段；现场施工混凝土梁段和梁段结合区；安装预制节段并进行节段连接；张拉预应力钢束；施工拱肋；安装吊杆。本发明中跨部分主梁节段用钢桁—混凝土结合梁替代混凝土主梁，节段重量轻，便于工厂预制和运输，且节段个数少、施工速度快，对跨越对象影响小，并提高了梁拱组合桥的适用跨度和应用范围。
Beam-arch combined bridge adopting steel truss-concrete prefabricated combined beam section and construction method
一种采用钢桁-砼预制结合梁段的梁拱组合桥及施工方法
SU WEI (author) / MOU ZHAOXIANG (author) / LI ENLIANG (author) / ZHANG SHANG (author) / ZHANG SHUAI (author) / ZHANG YUE (author)
2021-06-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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