既有缺陷预制T梁单梁承载能力静载试验全过程分析  

Analysis on Whole Process of Static Load Test on Bearing Capacity of Precast T-beam with Existing Defects

作　　者：张志强 董丽娜 Zhang Zhiqiang;Dong Lina(Ruizhi Traffic Technology Consulting Co.,Ltd.of Hebei Traffic Planning Institute,Shijiazhuang 050091,China;Hebei Key Laboratory of Highway Safety Perception and Monitoring,Shijiazhuang 050091,China;Hebei Road Engineering Intelligent Monitoring and Operation and Maintenance Technology Innovation Center,Shijiazhuang 050091,China)

机构地区：[1]河北交规院瑞志交通技术咨询有限公司,石家庄市050091 [2]河北省公路安全感知与监测重点实验室,石家庄市050091 [3]河北省道路工程智能监测与运维技术创新中心,石家庄市050091

出　　处：《北方交通》2021年第11期22-26,30,共6页Northern Communications

摘　　要：以某施工浇筑缺陷的预应力混凝土预制T梁为依托,对其单梁承载能力静载试验全过程进行分析,同时与本桥浇筑完好的同类预制T梁试验结果进行对比,结果表明其实际工作状态和承载能力均不满足设计要求,通过梁体破损验证了试验结果的可靠性,可为类似浇筑缺陷预制T梁的承载能力评估与利用提供参考依据。Based on a prestressed concrete precast T-beam with construction pouring defects,the whole process of static load test on bearing capacity of single beam is analyzed,and compared with the test results of similar precast T-beams with intact pouring of the bridge at the same time.The results show that,its actual working state and bearing capacity do not meet the design requirements,and the reliability of the test results is verified by beam damage,so as to provide reference basis for the evaluation and utilization of bearing capacity of similar precast T beams with pouring defects.

关 键 词：装配式预应力混凝土T梁 施工浇筑缺陷 单梁静载试验 承载能力评估 

分 类 号：U446.3[建筑科学—桥梁与隧道工程]