A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabricating, splicing and connecting structure for partially unbonded grouting sleeve and construction method
The invention relates to the technical field of bridge engineering, in particular to a partially unbonded grouting sleeve prefabricating, splicing and connecting structure and a construction method. According to the method, a layer of anti-corrosion lubricating grease is smeared on the bearing platform overhanging steel bar with a certain length in the grouting sleeve, the sleeve with the corresponding length sleeves the bearing platform overhanging steel bar, and the two ends of the sleeve are subjected to water sealing treatment through flexible sealant, so that the bearing platform overhanging steel bar in the grouting sleeve forms a steel bar unbonded section with a certain length. The connection stress of the pier and the bearing platform in normal use is guaranteed, and the energy dissipation capacity of the pier can be improved through sliding friction of the bearing platform overhanging steel bar in the grouting sleeve under the action of an earthquake. Meanwhile, the whole system has the advantages of simple structure, convenience in construction, high economical efficiency and the like, and is convenient to popularize and apply.
本发明涉及桥梁工程技术领域，尤其是涉及一种部分无粘结灌浆套筒预制拼装连接构造及施工方法。本发明将灌浆套筒中一定长度的承台外伸钢筋涂抹一层防腐润滑脂，外套相应长度的套管，并在套管两端用柔性密封胶做水封处理，以使灌浆套筒内承台外伸钢筋形成一定长度的钢筋无粘结段。本发明既保证了桥墩与承台在正常使用下的连接受力，又可以在地震作用下通过灌浆套筒内的承台外伸钢筋滑移摩擦提高桥墩的耗能能力。同时整个体系具有构造简单，施工方便，经济性强等优点，便于推广和应用。
Prefabricating, splicing and connecting structure for partially unbonded grouting sleeve and construction method
The invention relates to the technical field of bridge engineering, in particular to a partially unbonded grouting sleeve prefabricating, splicing and connecting structure and a construction method. According to the method, a layer of anti-corrosion lubricating grease is smeared on the bearing platform overhanging steel bar with a certain length in the grouting sleeve, the sleeve with the corresponding length sleeves the bearing platform overhanging steel bar, and the two ends of the sleeve are subjected to water sealing treatment through flexible sealant, so that the bearing platform overhanging steel bar in the grouting sleeve forms a steel bar unbonded section with a certain length. The connection stress of the pier and the bearing platform in normal use is guaranteed, and the energy dissipation capacity of the pier can be improved through sliding friction of the bearing platform overhanging steel bar in the grouting sleeve under the action of an earthquake. Meanwhile, the whole system has the advantages of simple structure, convenience in construction, high economical efficiency and the like, and is convenient to popularize and apply.
本发明涉及桥梁工程技术领域，尤其是涉及一种部分无粘结灌浆套筒预制拼装连接构造及施工方法。本发明将灌浆套筒中一定长度的承台外伸钢筋涂抹一层防腐润滑脂，外套相应长度的套管，并在套管两端用柔性密封胶做水封处理，以使灌浆套筒内承台外伸钢筋形成一定长度的钢筋无粘结段。本发明既保证了桥墩与承台在正常使用下的连接受力，又可以在地震作用下通过灌浆套筒内的承台外伸钢筋滑移摩擦提高桥墩的耗能能力。同时整个体系具有构造简单，施工方便，经济性强等优点，便于推广和应用。
Prefabricating, splicing and connecting structure for partially unbonded grouting sleeve and construction method
一种部分无粘结灌浆套筒预制拼装连接构造及施工方法
ZHANG JIYAN (author) / CHEN LECHUN (author) / ZHANG PENGHUI (author) / WU CHENGJUN (author) / HAO CHENYU (author) / GAO QI (author) / HOU LIYUAN (author) / WANG ZHIQIANG (author)
2022-02-01
Patent
Electronic Resource
Chinese
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