A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Novel reinforced concrete pier in composite reinforcement form and construction method
The invention relates to a novel reinforced concrete bridge pier in a composite reinforcement form and a construction method, a steel bar structure of the novel reinforced concrete bridge pier in the composite reinforcement form comprises bending steel bars, longitudinal steel bars, stirrups and unbonded prestressed tendons, and the longitudinal steel bars are arranged on the two sides, perpendicular to the bridge direction, in the steel bar structure of the bridge pier. Bending steel bars and longitudinal steel bars are arranged on the two sides, parallel to the bridge direction, in the steel bar structure of the pier. The stirrups are arranged on the outer sides of the bending steel bars and the longitudinal steel bars, and the unbonded prestressed tendons are arranged in the center of the pier. The method has the beneficial effects that residual displacement of traditional reinforced concrete can be reduced, the position where a pier plastic hinge is generated is affected, the rotating capacity of the section is further improved, damage control is conducted on the pier, and outward moving of the plastic hinge is achieved; the number of plastic hinges is increased when the pier is stressed, the rotating capacity of the plastic hinges of the pier is enhanced, and the energy-dissipating capacity of the pier is improved; and the bearing capacity is gradually improved through deformation of the bending section in different stages.
本发明涉及一种复合配筋形式的新型钢筋混凝土桥墩及施工方法，这种复合配筋形式的新型钢筋混凝土桥墩，桥墩的钢筋结构包括起弯钢筋、纵向钢筋、箍筋和无粘结预应力筋，桥墩的钢筋结构中垂直于桥梁方向的两侧设有纵向钢筋，桥墩的钢筋结构中平行于桥梁方向的两侧设有起弯钢筋和纵向钢筋；箍筋设于起弯钢筋和纵向钢筋的外侧，无粘结预应力筋设于桥墩中心。本发明的有益效果是：能够减小传统钢筋混凝土的残余位移，影响桥墩塑性铰产生的位置，进一步提高截面的转动能力，对桥墩进行损伤控制，实现塑性铰的外移；增加桥墩受力时塑性铰的数量，增强桥墩塑性铰转动能力，提升桥墩的耗能能力；通过起弯段在不同阶段的变形，逐渐提升承载力。
Novel reinforced concrete pier in composite reinforcement form and construction method
The invention relates to a novel reinforced concrete bridge pier in a composite reinforcement form and a construction method, a steel bar structure of the novel reinforced concrete bridge pier in the composite reinforcement form comprises bending steel bars, longitudinal steel bars, stirrups and unbonded prestressed tendons, and the longitudinal steel bars are arranged on the two sides, perpendicular to the bridge direction, in the steel bar structure of the bridge pier. Bending steel bars and longitudinal steel bars are arranged on the two sides, parallel to the bridge direction, in the steel bar structure of the pier. The stirrups are arranged on the outer sides of the bending steel bars and the longitudinal steel bars, and the unbonded prestressed tendons are arranged in the center of the pier. The method has the beneficial effects that residual displacement of traditional reinforced concrete can be reduced, the position where a pier plastic hinge is generated is affected, the rotating capacity of the section is further improved, damage control is conducted on the pier, and outward moving of the plastic hinge is achieved; the number of plastic hinges is increased when the pier is stressed, the rotating capacity of the plastic hinges of the pier is enhanced, and the energy-dissipating capacity of the pier is improved; and the bearing capacity is gradually improved through deformation of the bending section in different stages.
本发明涉及一种复合配筋形式的新型钢筋混凝土桥墩及施工方法，这种复合配筋形式的新型钢筋混凝土桥墩，桥墩的钢筋结构包括起弯钢筋、纵向钢筋、箍筋和无粘结预应力筋，桥墩的钢筋结构中垂直于桥梁方向的两侧设有纵向钢筋，桥墩的钢筋结构中平行于桥梁方向的两侧设有起弯钢筋和纵向钢筋；箍筋设于起弯钢筋和纵向钢筋的外侧，无粘结预应力筋设于桥墩中心。本发明的有益效果是：能够减小传统钢筋混凝土的残余位移，影响桥墩塑性铰产生的位置，进一步提高截面的转动能力，对桥墩进行损伤控制，实现塑性铰的外移；增加桥墩受力时塑性铰的数量，增强桥墩塑性铰转动能力，提升桥墩的耗能能力；通过起弯段在不同阶段的变形，逐渐提升承载力。
Novel reinforced concrete pier in composite reinforcement form and construction method
一种复合配筋形式的新型钢筋混凝土桥墩及施工方法
WANG CHENGQUAN (author) / ZHEN XIANG (author) / SUN MIAOMIAO (author) / JIANG JIQING (author) / WANG XINQUAN (author) / YIN CHONGLI (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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