A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Post-tensioned retard-bonded prestressed concrete beam
The invention discloses a post-tensioned retard-bonded prestressed concrete beam, belongs to the technical field of concrete beams, and solves the problems that positioning distribution in the beam is easy to damage and the stress performance of the beam is influenced when the concrete beam is tensioned. The outer sides of the four sets of steel reinforcement frameworks are sleeved with a plurality of prestressed tendons in the length direction, the outer sides of the steel reinforcement frameworks and the outer sides of the prestressed tendons are wrapped with slow-binding agents, and sheath assemblies are clamped to the outer side fillet positions of the steel reinforcement frameworks and the outer sides of the prestressed tendons. Fixing frames are fixedly connected to the centers of the front end face and the rear end face of the concrete body respectively, fixing rings are movably connected to the outer end faces of the fixing frames, beam end anchors penetrate through the fixing frames and the fixing rings, and the inner ends of the beam end anchors are connected into the concrete body in a penetrating mode. Through gradual curing of the slow-binding agent, it is ensured that the prestressed tendons are tensioned within the tensioning working period in the concrete body, and the rigidity, the bearing capacity and the ductility of the structure are improved.
一种后张缓粘结预应力混凝土梁，属于混凝土梁技术领域，解决混凝土梁在进行张拉时容易破坏梁内定位分布、影响梁的受力性能的问题，解决方案为：贯穿混凝土主体的四角位置处设置有四组钢筋骨架，四组钢筋骨架的外侧沿长度方向套接有若干预应力筋，钢筋骨架与预应力筋的外侧包裹有缓粘结剂，钢筋骨架与预应力筋的外侧圆角位置处卡接有护套组件；混凝土主体的前、后端端面的心部分别固定连接有固定架，固定架的外端面上活动连接有固定环，贯穿固定架与固定环设置梁端锚，并且梁端锚的内端贯穿连接于混凝土主体的内部。本发明通过缓粘结剂逐渐固化确保预应力筋在混凝土主体内部的张拉适用期内完成张拉，增加结构的刚度、承载能力和延性。
Post-tensioned retard-bonded prestressed concrete beam
The invention discloses a post-tensioned retard-bonded prestressed concrete beam, belongs to the technical field of concrete beams, and solves the problems that positioning distribution in the beam is easy to damage and the stress performance of the beam is influenced when the concrete beam is tensioned. The outer sides of the four sets of steel reinforcement frameworks are sleeved with a plurality of prestressed tendons in the length direction, the outer sides of the steel reinforcement frameworks and the outer sides of the prestressed tendons are wrapped with slow-binding agents, and sheath assemblies are clamped to the outer side fillet positions of the steel reinforcement frameworks and the outer sides of the prestressed tendons. Fixing frames are fixedly connected to the centers of the front end face and the rear end face of the concrete body respectively, fixing rings are movably connected to the outer end faces of the fixing frames, beam end anchors penetrate through the fixing frames and the fixing rings, and the inner ends of the beam end anchors are connected into the concrete body in a penetrating mode. Through gradual curing of the slow-binding agent, it is ensured that the prestressed tendons are tensioned within the tensioning working period in the concrete body, and the rigidity, the bearing capacity and the ductility of the structure are improved.
一种后张缓粘结预应力混凝土梁，属于混凝土梁技术领域，解决混凝土梁在进行张拉时容易破坏梁内定位分布、影响梁的受力性能的问题，解决方案为：贯穿混凝土主体的四角位置处设置有四组钢筋骨架，四组钢筋骨架的外侧沿长度方向套接有若干预应力筋，钢筋骨架与预应力筋的外侧包裹有缓粘结剂，钢筋骨架与预应力筋的外侧圆角位置处卡接有护套组件；混凝土主体的前、后端端面的心部分别固定连接有固定架，固定架的外端面上活动连接有固定环，贯穿固定架与固定环设置梁端锚，并且梁端锚的内端贯穿连接于混凝土主体的内部。本发明通过缓粘结剂逐渐固化确保预应力筋在混凝土主体内部的张拉适用期内完成张拉，增加结构的刚度、承载能力和延性。
Post-tensioned retard-bonded prestressed concrete beam
一种后张缓粘结预应力混凝土梁
SUN YI (author) / ZHANG LINGQIAO (author) / ZHANG JING (author) / ZHANG XUELIN (author) / LIU LIJUN (author) / LI YANHONG (author) / CHENG WEI (author) / WU JIANG (author) / LEE BYUNG-HO (author) / SHI PENGYUAN (author)
2025-01-14
Patent
Electronic Resource
Chinese
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
Large-span concrete beam retard-bonded prestressed construction method
| European Patent Office | 2021
Large-span retard-bonded prestressed reinforced concrete structural beam
| European Patent Office | 2022
Method for dismantling post-tensioned bonded prestressed beam
| European Patent Office | 2023
Post-tensioned prestressed Concrete
| TIBKAT | 1981
| European Patent Office | 2022