大跨预应力混凝土连续刚构桥病害分析及加固方案设计  

Disease Analysis and Reinforcement Scheme Design of Large-span Prestressed Concrete Continuous Rigid Frame Bridge

作　　者：苗毅 MIAO Yi(Xi'an Municipal Engineering Design&Research Institute Co.,Ltd.,Xi'an 710068,Shaanxi,China)

机构地区：[1]西安市政设计研究院有限公司,陕西西安710068

出　　处：《工程技术研究》2024年第17期176-178,共3页Engineering and Technological Research

摘　　要：文章以东南山区的某预应力混凝土连续钢桁架刚构桥为例,基于桥梁病害情况,开展针对性病害调查检测,分析病害的成因,并进行相应的加固方案设计。在进行ANSYS细部有限元仿真分析与施加加固措施后进行荷载测试,证实了所采取加固方案的有效性,以确保该桥梁长期的安全稳定运营。Taking a prestressed concrete continuous steel truss rigid frame bridge in the southeast mountainous area as an example,based on the bridge disease situation,this paper carries out targeted disease investigation and detection,analyzes the causes of the disease,and designs the corresponding reinforcement scheme.After the detailed finite element simulation analysis of ANSYS and the application of reinforcement measures,the load test is carried out to confirm the effectiveness of the reinforcement scheme,so as to ensure the long-term safe and stable operation of the bridge.

关 键 词：预应力混凝土 大跨连续刚构桥 宽裂缝 加固设计 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]