Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge pile foundation reinforcing structure and method
The invention relates to a bridge pile foundation reinforcing structure and method.The method comprises the steps that new pile foundations are arranged on the two sides in the transverse bridge direction, and the new pile foundations are located on the outer sides of original pile foundations; the pile tops of the new pile foundations on the two sides are connected with steel cross beams correspondingly, and overhanging steel bars are arranged on the steel cross beams. A supporting frame is arranged on the steel cross beam, a jack is arranged at the top of the supporting frame and acts on the bottom of the main beam, and the main beam pre-presses the steel cross beam through jacking of the jack; bearing platform steel bars and formworks are arranged on the periphery of the steel cross beam, the overhanging steel bars are connected with the bearing platform steel bars, and steel bars are planted on a pier body on an original pile foundation and connected with the bearing platform steel bars; a bearing platform is poured, cured and formed, the bearing platform covers part of the pier body, and the jack is compensated to maintain the original jacking force in the pouring process; and the bearing platform is disassembled, the jack is unloaded, and the supporting frame is disassembled. The steel cross beam and the bearing platform are stressed together, temporary reinforcement and permanent reinforcement of the bridge are implemented at the same time, the safety of the bridge structure in the whole process is ensured, settlement or deformation of a bridge pile foundation is effectively controlled, and the quality problem of the bridge is avoided.
本发明关于一种桥梁桩基加固结构及方法，该方法包括在横桥向两侧设置新桩基，新桩基位于原桩基外侧；两侧新桩基的桩顶分别连接钢横梁，钢横梁上设有外伸钢筋；在钢横梁上设置支撑架，支撑架顶部设置千斤顶，千斤顶作用于主梁梁底，通过千斤顶顶升使主梁对钢横梁进行预压；在钢横梁外围设置承台钢筋和模板，外伸钢筋和承台钢筋连接，在原桩基上的墩身植筋并连接承台钢筋；浇筑承台并养护成型，承台包覆部分墩身，浇筑过程中补偿千斤顶维持原顶升力；承台拆模，千斤顶卸载，支撑架拆除。本发明通过钢横梁和承台共同受力，实现桥梁临时加固和永久加固同时实施，确保全过程中桥梁结构的安全，有效控制桥梁桩基沉降或变形，避免桥梁发生质量问题。
Bridge pile foundation reinforcing structure and method
The invention relates to a bridge pile foundation reinforcing structure and method.The method comprises the steps that new pile foundations are arranged on the two sides in the transverse bridge direction, and the new pile foundations are located on the outer sides of original pile foundations; the pile tops of the new pile foundations on the two sides are connected with steel cross beams correspondingly, and overhanging steel bars are arranged on the steel cross beams. A supporting frame is arranged on the steel cross beam, a jack is arranged at the top of the supporting frame and acts on the bottom of the main beam, and the main beam pre-presses the steel cross beam through jacking of the jack; bearing platform steel bars and formworks are arranged on the periphery of the steel cross beam, the overhanging steel bars are connected with the bearing platform steel bars, and steel bars are planted on a pier body on an original pile foundation and connected with the bearing platform steel bars; a bearing platform is poured, cured and formed, the bearing platform covers part of the pier body, and the jack is compensated to maintain the original jacking force in the pouring process; and the bearing platform is disassembled, the jack is unloaded, and the supporting frame is disassembled. The steel cross beam and the bearing platform are stressed together, temporary reinforcement and permanent reinforcement of the bridge are implemented at the same time, the safety of the bridge structure in the whole process is ensured, settlement or deformation of a bridge pile foundation is effectively controlled, and the quality problem of the bridge is avoided.
本发明关于一种桥梁桩基加固结构及方法，该方法包括在横桥向两侧设置新桩基，新桩基位于原桩基外侧；两侧新桩基的桩顶分别连接钢横梁，钢横梁上设有外伸钢筋；在钢横梁上设置支撑架，支撑架顶部设置千斤顶，千斤顶作用于主梁梁底，通过千斤顶顶升使主梁对钢横梁进行预压；在钢横梁外围设置承台钢筋和模板，外伸钢筋和承台钢筋连接，在原桩基上的墩身植筋并连接承台钢筋；浇筑承台并养护成型，承台包覆部分墩身，浇筑过程中补偿千斤顶维持原顶升力；承台拆模，千斤顶卸载，支撑架拆除。本发明通过钢横梁和承台共同受力，实现桥梁临时加固和永久加固同时实施，确保全过程中桥梁结构的安全，有效控制桥梁桩基沉降或变形，避免桥梁发生质量问题。
Bridge pile foundation reinforcing structure and method
一种桥梁桩基加固结构及方法
LI HONGBIN (Autor:in) / CHEN ZHENGJIN (Autor:in) / ZHU CHENG (Autor:in) / SHI XIANGJIN (Autor:in) / SUN WENHUO (Autor:in) / NIE RONGHUI (Autor:in) / CHEN BO (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
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