空心板桥梁加固技术应用及理论分析  

Application and Theoretical Analysis of Hollow Slab Bridge Reinforcement Technology

作　　者：赵利强 ZHAO Liqiang(Shanxi Jiaoke Highway Survey and Design Institute Co.,Ltd.,Taiyuan Shanxi 030032,China)

机构地区：[1]山西交科公路勘察设计院有限公司,山西太原030032

出　　处：《交通节能与环保》2024年第3期206-209,共4页Transport Energy Conservation & Environmental Protection

摘　　要：本文简述了空心板桥梁的常见病害和现有的维修加固技术,对空心板桥梁的病害成因进行了详细的分析,并从加固原理和技术特点两方面对常用加固方法进行了对比,论证了预应力碳纤维板作为太高预制空心板梁的极限受弯承载力和抗弯刚度加固方案的有效性,相应提出了加固参数制定的理论分析过程,并基于两次假定进行了应力和挠度验算,确保了方案的适用性和可靠性。This paper briefly describes the common diseases of hollow slab bridges and the existing repair and reinforcement technology,makes a detailed analysis of the causes of the diseases of hollow slab bridges,and compares the existing commonly used reinforcement methods from the two aspects of the reinforcement principle and technical characteristics,demonstrates the effectiveness of the pre-stressed carbon fiber plate as the ultimate bending capacity and bending stiffness reinforcement program of too high prefabricated hollow slab girders,and accordingly puts forward the theoretical analytical process of the formulation of the reinforcement parameters,and performs stress and deflection checks based on two assumptions,which ensures the applicability and reliability of the program.

关 键 词：空心板桥梁 结构性裂缝 方案比选 预应力炭板加固 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]