Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel sleeve assembly type rail transit pier adopting mixed connection and construction method of steel sleeve assembly type rail transit pier
The invention discloses a steel sleeve assembly type rail transit pier adopting mixed connection and a construction method thereof. The pier structure can be formed by assembling a bearing platform, pre-buried corrugated pipes, high-strength bolts, steel sleeves, flange connecting plates, reinforced concrete pier body sections, prestressed tendons and energy-consuming steel bars. The bearing platform, the steel-encased casing pipe and the pier body sections are prefabricated in a factory, transported to the site and sequentially connected in series and assembled to form the pier in a mixed connection mode of grouting corrugated pipe connection, high-strength bolt flange connection, post-tensioning prestress connection and the like, the flange connection is arranged at the joint positions between the different pier sections, and the energy-consuming steel bars and the pier cooperatively deform. Opening and closing of the joint position of the pier bottom are controlled, the effects of energy dissipation and shock absorption are achieved, different shock absorption requirements of the pier are met, the steel sleeves achieve the effects of buffering and shock absorption, and collision damage to concrete at the joint position is reduced; therefore, the anti-seismic performance level of the prefabricated pier can be improved, and an important reference is provided for the anti-seismic design of the type of piers.
一种采用混合连接的钢套管装配式轨道交通桥墩及其施工方法，桥墩结构可由承台、预埋波纹管、高强螺栓、钢套管、法兰连接板、钢筋混凝土墩身节段、预应力筋以及耗能钢筋组装而成；承台、外包钢套管以及墩身节段在工厂预制完成，运输至现场，通过灌浆波纹管连接、高强螺栓法兰连接、后张预应力连接等混合连接方式依次串联组装而成桥墩，法兰连接设置在桥墩不同节段之间的接缝位置，耗能钢筋与桥墩协同变形，控制墩底接缝位置的张开和闭合，发挥耗能减震的作用，并且满足桥墩不同的减震需求，钢套管起到缓冲减震的作用，减小接缝处混凝土的碰撞损伤；由此，本发明可提高预制装配式桥墩的抗震性能水平，并为该类型桥墩的抗震设计提供重要参考。
Steel sleeve assembly type rail transit pier adopting mixed connection and construction method of steel sleeve assembly type rail transit pier
The invention discloses a steel sleeve assembly type rail transit pier adopting mixed connection and a construction method thereof. The pier structure can be formed by assembling a bearing platform, pre-buried corrugated pipes, high-strength bolts, steel sleeves, flange connecting plates, reinforced concrete pier body sections, prestressed tendons and energy-consuming steel bars. The bearing platform, the steel-encased casing pipe and the pier body sections are prefabricated in a factory, transported to the site and sequentially connected in series and assembled to form the pier in a mixed connection mode of grouting corrugated pipe connection, high-strength bolt flange connection, post-tensioning prestress connection and the like, the flange connection is arranged at the joint positions between the different pier sections, and the energy-consuming steel bars and the pier cooperatively deform. Opening and closing of the joint position of the pier bottom are controlled, the effects of energy dissipation and shock absorption are achieved, different shock absorption requirements of the pier are met, the steel sleeves achieve the effects of buffering and shock absorption, and collision damage to concrete at the joint position is reduced; therefore, the anti-seismic performance level of the prefabricated pier can be improved, and an important reference is provided for the anti-seismic design of the type of piers.
一种采用混合连接的钢套管装配式轨道交通桥墩及其施工方法，桥墩结构可由承台、预埋波纹管、高强螺栓、钢套管、法兰连接板、钢筋混凝土墩身节段、预应力筋以及耗能钢筋组装而成；承台、外包钢套管以及墩身节段在工厂预制完成，运输至现场，通过灌浆波纹管连接、高强螺栓法兰连接、后张预应力连接等混合连接方式依次串联组装而成桥墩，法兰连接设置在桥墩不同节段之间的接缝位置，耗能钢筋与桥墩协同变形，控制墩底接缝位置的张开和闭合，发挥耗能减震的作用，并且满足桥墩不同的减震需求，钢套管起到缓冲减震的作用，减小接缝处混凝土的碰撞损伤；由此，本发明可提高预制装配式桥墩的抗震性能水平，并为该类型桥墩的抗震设计提供重要参考。
Steel sleeve assembly type rail transit pier adopting mixed connection and construction method of steel sleeve assembly type rail transit pier
采用混合连接的钢套管装配式轨道交通桥墩及其施工方法
12.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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