A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabricated reinforced concrete embedded inclined-legged frame bridge
The invention discloses a prefabricated reinforced concrete embedded inclined-legged frame bridge, and relates to the technical field of inclined-legged frame bridges, in particular to a prefabricated reinforced concrete embedded inclined-legged frame bridge which comprises a reinforced concrete arch body, and bridge pier supporting tables are slidably connected to transverse steel parts on the two sides of the reinforced concrete arch body. A hydraulic oil cylinder is started in a multi-section mechanism mode to enable the top of the hydraulic oil cylinder to be connected upwards, one end drives the angle of a movably-connected arched beam supporting piece to change, the arched beam supporting piece rises continuously, the radian of arched top plates on the two sides and the radian of elastic rods connected with the arched top plates are changed, the overall contact face of a bridge deck is increased gradually, and meanwhile pressure of a bridge erecting pile foundation is shared; then the angle supporting position can be adjusted by sliding the bridge pier supporting table, so that the tension of the bridge floor is expanded, and the situation that the bridge floor tension is limited due to the fact that the arch radian of a small-span arch bridge is fixed, the stress of bases on the two sides of the bridge bottom is increased, and the situation that the bridge is stressed downwards and supported insufficiently possibly is avoided; therefore, the use safety of the bridge is influenced.
本发明公开了一种预制钢筋混凝土埋置式斜腿框架桥，涉及斜腿框架桥技术领域，具体包括钢筋混凝土拱身，所述钢筋混凝土拱身的两侧横向钢件处滑动连接有桥墩支撑台，通过多段机构式启动液压油缸使其顶部向上连接使一端带动活动连接的拱梁支件角度发生变化拱梁支件的不断升高，两侧拱形顶板与连接的弹性杆弧度发生变化，逐渐增大使桥面的整体接触面增大，同时对架桥桩基的压力进行分担，再通过滑动桥墩支撑台使角度支撑位置可以进行调整，从而使桥面张力进行扩大，改善采用小跨径拱桥因拱形弧度固定对桥面的张力受限，使两侧桥底两侧的基座受力增大，可能会导致架桥受力向下支撑不足的情况，从而影响到架桥的使用安全的问题。
Prefabricated reinforced concrete embedded inclined-legged frame bridge
The invention discloses a prefabricated reinforced concrete embedded inclined-legged frame bridge, and relates to the technical field of inclined-legged frame bridges, in particular to a prefabricated reinforced concrete embedded inclined-legged frame bridge which comprises a reinforced concrete arch body, and bridge pier supporting tables are slidably connected to transverse steel parts on the two sides of the reinforced concrete arch body. A hydraulic oil cylinder is started in a multi-section mechanism mode to enable the top of the hydraulic oil cylinder to be connected upwards, one end drives the angle of a movably-connected arched beam supporting piece to change, the arched beam supporting piece rises continuously, the radian of arched top plates on the two sides and the radian of elastic rods connected with the arched top plates are changed, the overall contact face of a bridge deck is increased gradually, and meanwhile pressure of a bridge erecting pile foundation is shared; then the angle supporting position can be adjusted by sliding the bridge pier supporting table, so that the tension of the bridge floor is expanded, and the situation that the bridge floor tension is limited due to the fact that the arch radian of a small-span arch bridge is fixed, the stress of bases on the two sides of the bridge bottom is increased, and the situation that the bridge is stressed downwards and supported insufficiently possibly is avoided; therefore, the use safety of the bridge is influenced.
本发明公开了一种预制钢筋混凝土埋置式斜腿框架桥，涉及斜腿框架桥技术领域，具体包括钢筋混凝土拱身，所述钢筋混凝土拱身的两侧横向钢件处滑动连接有桥墩支撑台，通过多段机构式启动液压油缸使其顶部向上连接使一端带动活动连接的拱梁支件角度发生变化拱梁支件的不断升高，两侧拱形顶板与连接的弹性杆弧度发生变化，逐渐增大使桥面的整体接触面增大，同时对架桥桩基的压力进行分担，再通过滑动桥墩支撑台使角度支撑位置可以进行调整，从而使桥面张力进行扩大，改善采用小跨径拱桥因拱形弧度固定对桥面的张力受限，使两侧桥底两侧的基座受力增大，可能会导致架桥受力向下支撑不足的情况，从而影响到架桥的使用安全的问题。
Prefabricated reinforced concrete embedded inclined-legged frame bridge
一种预制钢筋混凝土埋置式斜腿框架桥
YIN MEIQIN (author)
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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