白城市红旗街公铁立交桥动静载试验及承载能力评定研究  

Research on Dynamic and Static Load Test and Carrying Capacity Evaluation of the Public Railway overpass on Hongqi Street in Baicheng City

作　　者：郑一峰[1] 徐彬 赵群[1] 郑传峰[1] ZHENG Yifeng;XU Bin;ZHAO Qun;ZHENG Chuanfeng(College of Construction Engineering, Jilin University, Changchun 130026, China)

机构地区：[1]吉林大学建设工程学院,长春130026

出　　处：《路基工程》2019年第1期38-42,共5页Subgrade Engineering

基　　金：国家自然科学基金项目(51508222)

摘　　要：白城市红旗街上跨平齐线和白阿线公铁立交桥已运营三十余年,存在较严重的病害和安全隐患。通过桥梁检测和动静载试验,对该桥进行了技术状况和承载能力评定,结果表明:主梁刚度和跨中截面承载能力不满足设计要求。The overpass crossing Pingqi line and Baia line on Hongqi Street in Baicheng City has been in operation for more than 30 years. The bridge has relatively serious diseases and safety hazards. Through bridge detection and dynamic and static load tests, the bridge was evaluated for technical status and bearing capacity. The evaluation results showed that the stiffness of the main beam and the cross-middle section carrying capacity did not meet the design requirements.

关 键 词：公铁立交桥 动静载试验 技术状况 承载能力评定 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]