Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-stressed anchor cable broken line pre-tensioning method pedestal and construction method
The invention belongs to the technical field of bridge superstructure construction, and particularly relates to a pre-stressed anchor cable broken line pre-tensioning method pedestal and a construction method. The pedestal comprises a frame type foundation, anti-shearing short piles are arranged below the frame type foundation, a tensioning end reaction wall is arranged on the left side of the upper portion of the frame type foundation, a Bulb-T beam module is arranged on the right side of the upper portion of the frame type foundation, an anchoring trolley and a steel beam bogie are arranged between the tensioning end reaction wall and the Bulb-T beam module, and the Bulb-T beam module is connected with a plurality of prestressed steel strands. The prestressed steel strand penetrates through the steel beam bogie to be fixedly connected with the anchoring trolley, a plurality of jacks are arranged on the tensioning end reaction wall, the movable ends of the jacks are connected with tensioning rods, and the tensioning rods are fixedly connected with the anchoring trolley. The concrete frame type foundation is matched with the recoverable pre-stressed anchor cables to form a whole with the foundation, pulling resistance meeting Bulb-T beam tensioning construction can be provided, meanwhile, the pulling resistance serves as pre-stress of the concrete reaction wall, the bearing capacity of the concrete reaction wall is improved, and the reinforcement amount of the concrete reaction wall is reduced.
本发明属于桥梁上部结构施工技术领域，特别涉及一种预应力锚索折线先张法台座及施工方法。该台座包括框架式基础，框架式基础下方设有抗剪短桩，框架式基础上部左侧设有张拉端反力墙，框架式基础上部右侧设有Bulb‑T梁模块，张拉端反力墙与Bulb‑T梁模块之间设有锚固小车和钢束转向架，Bulb‑T梁模块连接有多条预应力钢绞线，预应力钢绞线穿过钢束转向架与锚固小车固定连接，张拉端反力墙上设有多个千斤顶，千斤顶的活动端连接有张拉杆，张拉杆与锚固小车固定连接。本发明通过采用混凝土框架式基础配合可回收预应力锚索与地基形成一个整体，可以提供满足Bulb‑T梁张拉施工的抗拔力，同时作为混凝土反力墙的预应力，提高混凝土反力墙的承载力，减少其配筋量。
Pre-stressed anchor cable broken line pre-tensioning method pedestal and construction method
The invention belongs to the technical field of bridge superstructure construction, and particularly relates to a pre-stressed anchor cable broken line pre-tensioning method pedestal and a construction method. The pedestal comprises a frame type foundation, anti-shearing short piles are arranged below the frame type foundation, a tensioning end reaction wall is arranged on the left side of the upper portion of the frame type foundation, a Bulb-T beam module is arranged on the right side of the upper portion of the frame type foundation, an anchoring trolley and a steel beam bogie are arranged between the tensioning end reaction wall and the Bulb-T beam module, and the Bulb-T beam module is connected with a plurality of prestressed steel strands. The prestressed steel strand penetrates through the steel beam bogie to be fixedly connected with the anchoring trolley, a plurality of jacks are arranged on the tensioning end reaction wall, the movable ends of the jacks are connected with tensioning rods, and the tensioning rods are fixedly connected with the anchoring trolley. The concrete frame type foundation is matched with the recoverable pre-stressed anchor cables to form a whole with the foundation, pulling resistance meeting Bulb-T beam tensioning construction can be provided, meanwhile, the pulling resistance serves as pre-stress of the concrete reaction wall, the bearing capacity of the concrete reaction wall is improved, and the reinforcement amount of the concrete reaction wall is reduced.
本发明属于桥梁上部结构施工技术领域，特别涉及一种预应力锚索折线先张法台座及施工方法。该台座包括框架式基础，框架式基础下方设有抗剪短桩，框架式基础上部左侧设有张拉端反力墙，框架式基础上部右侧设有Bulb‑T梁模块，张拉端反力墙与Bulb‑T梁模块之间设有锚固小车和钢束转向架，Bulb‑T梁模块连接有多条预应力钢绞线，预应力钢绞线穿过钢束转向架与锚固小车固定连接，张拉端反力墙上设有多个千斤顶，千斤顶的活动端连接有张拉杆，张拉杆与锚固小车固定连接。本发明通过采用混凝土框架式基础配合可回收预应力锚索与地基形成一个整体，可以提供满足Bulb‑T梁张拉施工的抗拔力，同时作为混凝土反力墙的预应力，提高混凝土反力墙的承载力，减少其配筋量。
Pre-stressed anchor cable broken line pre-tensioning method pedestal and construction method
一种预应力锚索折线先张法台座及施工方法
XU ZHIXING (Autor:in) / LIU GUOPENG (Autor:in) / LIU FENGFENG (Autor:in) / TORAMI (Autor:in) / LI BO (Autor:in)
22.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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