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A platform for research: civil engineering, architecture and urbanism
Corrosion concrete beam reinforcing method and structure
The invention discloses a rusty concrete beam reinforcing method and a rusty concrete beam reinforcing structure, and belongs to the technical field of rusty concrete beam repairing and reinforcing. The rusty concrete beam reinforcing method comprises the following steps that a rusty concrete layer of a concrete beam is removed, so that a rusty steel bar is exposed, and the rusty steel bar is derusted; chemical bolts are implanted into the rust-removed concrete surface, a new concrete layer is poured, and the chemical bolts penetrate through the new concrete layer; and an FRP plate is pasted on the surface of the new concrete layer, anchoring steel fasteners are installed through chemical bolts, pre-compression is applied to the anchoring steel fasteners through a torque wrench, and reinforcement of the rusted concrete beam is completed. According to the method, premature stripping of the FRP and the concrete interface is restrained by applying prepressure, the pressure is transmitted to the new and old concrete interface through the bolt to further restrain separation of the interface, stripping of the new and old concrete interface is also restrained through the bolt pinning effect of the bolt, and therefore the reinforcing effect of the rusted beam is further improved.
本发明公开了一种锈蚀混凝土梁加固方法及加固结构，属于锈蚀混凝土梁修复、加固技术领域，包括以下步骤：将混凝土梁的锈蚀混凝土层清除，使锈蚀钢筋暴露，对锈蚀钢筋进行除锈；在去除锈蚀混凝土面植入化学螺栓，浇筑新混凝土层，化学螺栓贯穿新混凝土层；在新混凝土层表面粘贴FRP板，化学螺栓安装锚固钢扣件，通过扭矩扳手对锚固钢扣件施加预压力，完成锈蚀混凝土梁加固。该方法不仅通过施加预压力抑制FRP与混凝土界面的过早剥离，还通过螺栓将压力传递至新旧混凝土界面进而抑制界面的分离，且螺栓的销栓作用同样抑制了新旧混凝土界面的剥离，从而进一步提高锈蚀梁的加固效果。
Corrosion concrete beam reinforcing method and structure
The invention discloses a rusty concrete beam reinforcing method and a rusty concrete beam reinforcing structure, and belongs to the technical field of rusty concrete beam repairing and reinforcing. The rusty concrete beam reinforcing method comprises the following steps that a rusty concrete layer of a concrete beam is removed, so that a rusty steel bar is exposed, and the rusty steel bar is derusted; chemical bolts are implanted into the rust-removed concrete surface, a new concrete layer is poured, and the chemical bolts penetrate through the new concrete layer; and an FRP plate is pasted on the surface of the new concrete layer, anchoring steel fasteners are installed through chemical bolts, pre-compression is applied to the anchoring steel fasteners through a torque wrench, and reinforcement of the rusted concrete beam is completed. According to the method, premature stripping of the FRP and the concrete interface is restrained by applying prepressure, the pressure is transmitted to the new and old concrete interface through the bolt to further restrain separation of the interface, stripping of the new and old concrete interface is also restrained through the bolt pinning effect of the bolt, and therefore the reinforcing effect of the rusted beam is further improved.
本发明公开了一种锈蚀混凝土梁加固方法及加固结构，属于锈蚀混凝土梁修复、加固技术领域，包括以下步骤：将混凝土梁的锈蚀混凝土层清除，使锈蚀钢筋暴露，对锈蚀钢筋进行除锈；在去除锈蚀混凝土面植入化学螺栓，浇筑新混凝土层，化学螺栓贯穿新混凝土层；在新混凝土层表面粘贴FRP板，化学螺栓安装锚固钢扣件，通过扭矩扳手对锚固钢扣件施加预压力，完成锈蚀混凝土梁加固。该方法不仅通过施加预压力抑制FRP与混凝土界面的过早剥离，还通过螺栓将压力传递至新旧混凝土界面进而抑制界面的分离，且螺栓的销栓作用同样抑制了新旧混凝土界面的剥离，从而进一步提高锈蚀梁的加固效果。
Corrosion concrete beam reinforcing method and structure
一种锈蚀混凝土梁加固方法及加固结构
GAO LEI (author) / GAO XIAOHUA (author) / ZHANG FENG (author) / ZHANG LUKE (author) / ZHAO GUOHAO (author)
2022-12-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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