Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Beam-arch cooperative extradosed cable-stayed bridge and construction method
The invention discloses a beam-arch cooperation type extradosed cable-stayed bridge and a construction method, and solves the problems that in the prior art, a bridge crosses a seismic zone, the requirement for the anti-seismic performance of the bridge is high, but due to the fact that the weight of the extradosed cable-stayed bridge is large, the inertia force of the bridge is large, and the anti-seismic performance of the bridge is not good. Comprising a plurality of piers, bridge towers are arranged at the tops of the piers, pier top beam sections are transversely arranged between the piers and the bridge towers, and beam-arch cooperative intersection areas are arranged on the two sides of the pier top beam sections; the beam-arch cooperative intersection area is composed of an upper chord box beam and a lower chord box beam, the upper chord box beam is formed by extending a pier top beam section towards the two sides, the lower chord box beam is formed by obliquely extending the pier top of a pier along a set changing curve to be connected with the upper chord box beam, and the upper chord box beam and the lower chord box beam are away from the pier top beam section by a set distance to form the beam-arch cooperative intersection area. The beam-arch cooperation intersection area continuously extends to the two sides to form a side span and a middle span; the top of the upper chord box girder is connected with a bridge tower through a stay cable.
本发明公开了一种梁拱协作式矮塔斜拉桥及施工方法，解决了现有技术中桥梁跨越地震带，对桥梁抗震性能要求高，但是矮塔斜拉桥重量大导致桥梁惯性力大，因此对桥梁抗震不利的问题，具体方案如下：一种梁拱协作式矮塔斜拉桥，包括包括若干桥墩，桥墩顶部设置桥塔，桥墩与桥塔之间横向设置墩顶梁段，墩顶梁段两侧为梁拱协作交汇区；所述梁拱协作交汇区由上弦箱梁和下弦箱梁组成，上弦箱梁由墩顶梁段向两侧延伸而成，所述下弦箱梁由桥墩墩顶倾斜沿设定变化曲线延伸到连接上弦箱梁而成，上弦箱梁和下弦箱梁离开墩顶梁段设定距离形成梁拱协作交汇区，梁拱协作交汇区继续向两侧延伸形成边跨和中跨；上弦箱梁顶部通过斜拉索与桥塔连接。
Beam-arch cooperative extradosed cable-stayed bridge and construction method
The invention discloses a beam-arch cooperation type extradosed cable-stayed bridge and a construction method, and solves the problems that in the prior art, a bridge crosses a seismic zone, the requirement for the anti-seismic performance of the bridge is high, but due to the fact that the weight of the extradosed cable-stayed bridge is large, the inertia force of the bridge is large, and the anti-seismic performance of the bridge is not good. Comprising a plurality of piers, bridge towers are arranged at the tops of the piers, pier top beam sections are transversely arranged between the piers and the bridge towers, and beam-arch cooperative intersection areas are arranged on the two sides of the pier top beam sections; the beam-arch cooperative intersection area is composed of an upper chord box beam and a lower chord box beam, the upper chord box beam is formed by extending a pier top beam section towards the two sides, the lower chord box beam is formed by obliquely extending the pier top of a pier along a set changing curve to be connected with the upper chord box beam, and the upper chord box beam and the lower chord box beam are away from the pier top beam section by a set distance to form the beam-arch cooperative intersection area. The beam-arch cooperation intersection area continuously extends to the two sides to form a side span and a middle span; the top of the upper chord box girder is connected with a bridge tower through a stay cable.
本发明公开了一种梁拱协作式矮塔斜拉桥及施工方法，解决了现有技术中桥梁跨越地震带，对桥梁抗震性能要求高，但是矮塔斜拉桥重量大导致桥梁惯性力大，因此对桥梁抗震不利的问题，具体方案如下：一种梁拱协作式矮塔斜拉桥，包括包括若干桥墩，桥墩顶部设置桥塔，桥墩与桥塔之间横向设置墩顶梁段，墩顶梁段两侧为梁拱协作交汇区；所述梁拱协作交汇区由上弦箱梁和下弦箱梁组成，上弦箱梁由墩顶梁段向两侧延伸而成，所述下弦箱梁由桥墩墩顶倾斜沿设定变化曲线延伸到连接上弦箱梁而成，上弦箱梁和下弦箱梁离开墩顶梁段设定距离形成梁拱协作交汇区，梁拱协作交汇区继续向两侧延伸形成边跨和中跨；上弦箱梁顶部通过斜拉索与桥塔连接。
Beam-arch cooperative extradosed cable-stayed bridge and construction method
一种梁拱协作式矮塔斜拉桥及施工方法
SONG TAO (Autor:in) / WANG BAOQUN (Autor:in) / PENG YI (Autor:in)
18.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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