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A platform for research: civil engineering, architecture and urbanism
Prestressed cantilever support structure of large cantilever bent cap and construction method
A prestress cantilever support structure of a large cantilever bent cap comprises piers, a bent cap and a bearing platform, and the piers are located between the bent cap and the bearing platform. Thestructure is characterized in that the piers are symmetrically arranged at the two ends of the bearing platform, and symmetrically-arranged support stand columns are arranged on the side faces of thepiers; the bottom of each support stand column is supported on the bearing platform, a support cross beam is arranged over the support stand column, and a slope adjusting truss abutting against the bottom of the bent cap is arranged on the support cross beam. A support prestressed cable and a prestressed anchoring device matched with the support prestressed cable are arranged on the support crossbeam. Compared with the prior art, the prestressed cable of the bent cap support is used for tensioning to realized a support large cantilever structure system, the support stand column arranged on aground road traffic lane is avoided from interfering in traffic, it is guaranteed that vehicles pass through the position below a bent cap cantilever smoothly, internal force control and displacementcontrol over the support cross beam can be achieved through tensioning of the support prestressed cable, construction is convenient, the structure is simple, and effectiveness and feasibility are achieved.
一种大悬臂盖梁的预应力悬臂支架结构，包括桥墩、盖梁和承台，桥墩位于盖梁和承台之间；其特征在于，所述桥墩对称设置于承台两端，桥墩侧面上设有对称设置的支架立柱；所述支架立柱底部支撑在承台上，且支架立柱上方设有支架横梁，支架横梁上设有与盖梁底部相抵的调坡桁架；所述支架横梁上设有支架预应力索和与支架预应力索相适配的预应力锚固装置；与现有技术相比，通过盖梁支架的预应力索张拉，实现支架大悬臂结构体系，可以避免在地面道路行车道上设置支架立柱干扰行车，保证盖梁悬臂位置下方保通车辆顺畅通行，并可通过支架预应力索的张拉，实现支架横梁的内力控制和位移控制，施工方便，结构简单，有效可行。
Prestressed cantilever support structure of large cantilever bent cap and construction method
A prestress cantilever support structure of a large cantilever bent cap comprises piers, a bent cap and a bearing platform, and the piers are located between the bent cap and the bearing platform. Thestructure is characterized in that the piers are symmetrically arranged at the two ends of the bearing platform, and symmetrically-arranged support stand columns are arranged on the side faces of thepiers; the bottom of each support stand column is supported on the bearing platform, a support cross beam is arranged over the support stand column, and a slope adjusting truss abutting against the bottom of the bent cap is arranged on the support cross beam. A support prestressed cable and a prestressed anchoring device matched with the support prestressed cable are arranged on the support crossbeam. Compared with the prior art, the prestressed cable of the bent cap support is used for tensioning to realized a support large cantilever structure system, the support stand column arranged on aground road traffic lane is avoided from interfering in traffic, it is guaranteed that vehicles pass through the position below a bent cap cantilever smoothly, internal force control and displacementcontrol over the support cross beam can be achieved through tensioning of the support prestressed cable, construction is convenient, the structure is simple, and effectiveness and feasibility are achieved.
一种大悬臂盖梁的预应力悬臂支架结构，包括桥墩、盖梁和承台，桥墩位于盖梁和承台之间；其特征在于，所述桥墩对称设置于承台两端，桥墩侧面上设有对称设置的支架立柱；所述支架立柱底部支撑在承台上，且支架立柱上方设有支架横梁，支架横梁上设有与盖梁底部相抵的调坡桁架；所述支架横梁上设有支架预应力索和与支架预应力索相适配的预应力锚固装置；与现有技术相比，通过盖梁支架的预应力索张拉，实现支架大悬臂结构体系，可以避免在地面道路行车道上设置支架立柱干扰行车，保证盖梁悬臂位置下方保通车辆顺畅通行，并可通过支架预应力索的张拉，实现支架横梁的内力控制和位移控制，施工方便，结构简单，有效可行。
Prestressed cantilever support structure of large cantilever bent cap and construction method
一种大悬臂盖梁的预应力悬臂支架结构及施工方法
LIU FENGZHOU (author) / JIANG FU (author) / WANG BIN (author) / LIU HONGYU (author) / YU WEI (author) / DONG BONING (author) / YANG QIBIAO (author) / FAN LINGFENG (author) / WU YONGCHENG (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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