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A platform for research: civil engineering, architecture and urbanism
Reinforced concrete pier provided with unbonded continuous bending steel bars and construction method
The invention relates to a reinforced concrete pier with unbonded continuous bending steel bars and a construction method, a steel bar structure of the pier comprises the continuous bending steel bars, longitudinal steel bars and stirrups, the stirrups are annularly connected with the longitudinal steel bars, and the continuous bending steel bars are arranged on the two sides of the steel bar structure of the pier; a plurality of continuous bending steel bars are arranged among the longitudinal steel bars at intervals and are also connected with the stirrups. The bridge pier has the beneficial effects that the continuous bending steel bars are additionally arranged on the two sides of the bridge pier, and the denaturation capacity and the energy dissipation capacity of the bridge pier are enhanced on the basis that the original bearing capacity is not reduced; the residual displacement of traditional reinforced concrete can be reduced; the deformation space of the continuous bending section is reserved through the foam cushion block, so that the deformability of the reinforced concrete pier is enhanced; the continuous bending sections gradually improve the bearing capacity at different stages, delay generation of plastic hinges at the bottom of the pier, increase the number of the plastic hinges, enhance the rotation capacity of the plastic hinges of the pier and improve the energy dissipation capacity of the pier.
本发明涉及一种配有无粘结连续起弯钢筋的钢筋混凝土桥墩及施工方法，桥墩的钢筋结构包括连续起弯钢筋、纵向钢筋和箍筋，箍筋环向连接数道纵向钢筋，连续起弯钢筋设于桥墩的钢筋结构的两侧，数道连续起弯钢筋间隔地设于纵向钢筋之间，连续起弯钢筋也连接箍筋。本发明的有益效果是：在桥墩两侧添加了连续起弯钢筋，在不降低原有承载力的基础上增强了桥墩的变性能力和耗能能力；能够减小传统钢筋混凝土的残余位移；通过泡沫垫块预留连续起弯段的变形空间，增强了钢筋混凝土桥墩的变形能力；连续起弯段在不同阶段逐渐提升承载力，延缓桥墩墩底塑性铰的产生，增加塑性铰的数量，增强桥墩塑性铰转动能力，提升桥墩的耗能能力。
Reinforced concrete pier provided with unbonded continuous bending steel bars and construction method
The invention relates to a reinforced concrete pier with unbonded continuous bending steel bars and a construction method, a steel bar structure of the pier comprises the continuous bending steel bars, longitudinal steel bars and stirrups, the stirrups are annularly connected with the longitudinal steel bars, and the continuous bending steel bars are arranged on the two sides of the steel bar structure of the pier; a plurality of continuous bending steel bars are arranged among the longitudinal steel bars at intervals and are also connected with the stirrups. The bridge pier has the beneficial effects that the continuous bending steel bars are additionally arranged on the two sides of the bridge pier, and the denaturation capacity and the energy dissipation capacity of the bridge pier are enhanced on the basis that the original bearing capacity is not reduced; the residual displacement of traditional reinforced concrete can be reduced; the deformation space of the continuous bending section is reserved through the foam cushion block, so that the deformability of the reinforced concrete pier is enhanced; the continuous bending sections gradually improve the bearing capacity at different stages, delay generation of plastic hinges at the bottom of the pier, increase the number of the plastic hinges, enhance the rotation capacity of the plastic hinges of the pier and improve the energy dissipation capacity of the pier.
本发明涉及一种配有无粘结连续起弯钢筋的钢筋混凝土桥墩及施工方法，桥墩的钢筋结构包括连续起弯钢筋、纵向钢筋和箍筋，箍筋环向连接数道纵向钢筋，连续起弯钢筋设于桥墩的钢筋结构的两侧，数道连续起弯钢筋间隔地设于纵向钢筋之间，连续起弯钢筋也连接箍筋。本发明的有益效果是：在桥墩两侧添加了连续起弯钢筋，在不降低原有承载力的基础上增强了桥墩的变性能力和耗能能力；能够减小传统钢筋混凝土的残余位移；通过泡沫垫块预留连续起弯段的变形空间，增强了钢筋混凝土桥墩的变形能力；连续起弯段在不同阶段逐渐提升承载力，延缓桥墩墩底塑性铰的产生，增加塑性铰的数量，增强桥墩塑性铰转动能力，提升桥墩的耗能能力。
Reinforced concrete pier provided with unbonded continuous bending steel bars and construction method
配有无粘结连续起弯钢筋的钢筋混凝土桥墩及施工方法
WANG CHENGQUAN (author) / ZHEN XIANG (author) / JIANG JIQING (author) / DING ZHI (author) / LI LUFAN (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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