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A platform for research: civil engineering, architecture and urbanism
Reinforced concrete beam holing reinforcement method
The invention relates to a reinforced concrete beam holing reinforcement method. According to the technical solution, a hole is formed in the reinforced concrete beam, carbon fiber U-shaped hoops are arranged on the two sides of the periphery of the hole, carbon fiber pressing strips are arranged on the upper portion and the lower portion of the two sides of the hole end correspondingly, a reinforced sleeve is placed in the hole, the outer surface of the reinforced sleeve is evenly coated with structural adhesive, and effective contact between concrete and the sleeve is ensured. By utilizing the characteristics and performance of the regional constraint, the reduction of strength and ductility caused by the holing in a web is effectively reduced, the bending resistance and shearing resistance bearing capacity of a reinforced concrete beam are ensured, the stress concentration phenomenon around the hole is relieved, and the structural reliability is improved.
本发明涉及一种钢筋混凝土梁开洞加固方法，技术方案为钢筋混凝土梁梁上开洞，在所述洞的周边两侧设置碳纤维U型箍，并在洞端两侧上下各设置碳纤维压条，在洞中放入加筋套筒，加紧套筒外表面均匀涂抹结构胶，保证混凝土与套筒有效接触。利用区域约束的特点和性能，有效降低由于梁腹开洞而引起的强度和延性的减小，保证了钢筋混凝土梁的抗弯、抗剪承载能力，缓解了洞口周边的应力集中现象，提高了结构可靠性。
Reinforced concrete beam holing reinforcement method
The invention relates to a reinforced concrete beam holing reinforcement method. According to the technical solution, a hole is formed in the reinforced concrete beam, carbon fiber U-shaped hoops are arranged on the two sides of the periphery of the hole, carbon fiber pressing strips are arranged on the upper portion and the lower portion of the two sides of the hole end correspondingly, a reinforced sleeve is placed in the hole, the outer surface of the reinforced sleeve is evenly coated with structural adhesive, and effective contact between concrete and the sleeve is ensured. By utilizing the characteristics and performance of the regional constraint, the reduction of strength and ductility caused by the holing in a web is effectively reduced, the bending resistance and shearing resistance bearing capacity of a reinforced concrete beam are ensured, the stress concentration phenomenon around the hole is relieved, and the structural reliability is improved.
本发明涉及一种钢筋混凝土梁开洞加固方法，技术方案为钢筋混凝土梁梁上开洞，在所述洞的周边两侧设置碳纤维U型箍，并在洞端两侧上下各设置碳纤维压条，在洞中放入加筋套筒，加紧套筒外表面均匀涂抹结构胶，保证混凝土与套筒有效接触。利用区域约束的特点和性能，有效降低由于梁腹开洞而引起的强度和延性的减小，保证了钢筋混凝土梁的抗弯、抗剪承载能力，缓解了洞口周边的应力集中现象，提高了结构可靠性。
Reinforced concrete beam holing reinforcement method
一种钢筋混凝土梁开洞加固方法
ZHANG CHUNYANG (author) / JIN XILONG (author) / LIU YANMEI (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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