A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span double-arch-shaft combined arch bridge and design and construction method thereof
The invention discloses a large-span double-arch-shaft combined arch bridge and a design and construction method thereof. The large-span double-arch-shaft combined arch bridge comprises a single-arch-shaft standard section with an open-web structure and a uniform section or a variable section and a change section with a passage space and a bidirectional curve slope, and the change section is rigidly connected with the standard section through a change point; through the passing space, the permeability of the arch feet is improved, the wind blocking face is reduced, the wind resistance of the arch bridge is improved, when the width of a highway in the vertical direction of the arch bridge is limited, the arch bridge can be compatible with a non-motorized vehicle lane, smooth traffic is guaranteed to the maximum extent, and the vertical vehicle throughput is improved; the inward curvature convergent type inner arch feet reduce the horizontal thrust of the arch feet, improve the transverse stability and increase the economic spanning capacity of the arch bridge structure, and the outer arch feet improve the stability of the large-span double-arch-shaft combined arch bridge.
本发明公开了一种大跨度双拱轴组合拱桥及其设计建造方法，所述大跨度组合拱桥包括空腹结构等截面或变截面的单拱轴标准段和具有通行空间的、双向曲线斜率的变化段，变化段与标准段经变化点刚性连接；通过通行空间增加了拱脚的通透性，减少阻风面，提高了拱桥的抗风性能，当拱桥垂直向的公路宽度有限时，可兼容非机动车道，最大限度的确保交通顺畅，提高垂直向车辆吞吐量；内向曲率收敛式的内拱脚，减小拱脚水平推力，提高横向稳定性，增大拱桥结构经济跨越能力，外拱脚提高了所述大跨度双拱轴组合拱桥的稳固性。
Large-span double-arch-shaft combined arch bridge and design and construction method thereof
The invention discloses a large-span double-arch-shaft combined arch bridge and a design and construction method thereof. The large-span double-arch-shaft combined arch bridge comprises a single-arch-shaft standard section with an open-web structure and a uniform section or a variable section and a change section with a passage space and a bidirectional curve slope, and the change section is rigidly connected with the standard section through a change point; through the passing space, the permeability of the arch feet is improved, the wind blocking face is reduced, the wind resistance of the arch bridge is improved, when the width of a highway in the vertical direction of the arch bridge is limited, the arch bridge can be compatible with a non-motorized vehicle lane, smooth traffic is guaranteed to the maximum extent, and the vertical vehicle throughput is improved; the inward curvature convergent type inner arch feet reduce the horizontal thrust of the arch feet, improve the transverse stability and increase the economic spanning capacity of the arch bridge structure, and the outer arch feet improve the stability of the large-span double-arch-shaft combined arch bridge.
本发明公开了一种大跨度双拱轴组合拱桥及其设计建造方法，所述大跨度组合拱桥包括空腹结构等截面或变截面的单拱轴标准段和具有通行空间的、双向曲线斜率的变化段，变化段与标准段经变化点刚性连接；通过通行空间增加了拱脚的通透性，减少阻风面，提高了拱桥的抗风性能，当拱桥垂直向的公路宽度有限时，可兼容非机动车道，最大限度的确保交通顺畅，提高垂直向车辆吞吐量；内向曲率收敛式的内拱脚，减小拱脚水平推力，提高横向稳定性，增大拱桥结构经济跨越能力，外拱脚提高了所述大跨度双拱轴组合拱桥的稳固性。
Large-span double-arch-shaft combined arch bridge and design and construction method thereof
大跨度双拱轴组合拱桥及其设计建造方法
LI XIANGYU (author) / LIU QIUHONG (author) / LI YONG (author) / MA LIPING (author) / ZHANG XUN (author)
2020-04-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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