既有小箱梁桥重建利用的检测与评定  

Detection and Evaluation of Reconstruction and Utilization of Existing Small Box Girder Bridges

作　　者：魏初材 程亮 郑民锋 赖道斌 朱晶铭 Wei Chucai;Cheng Liang;Zheng Minfeng;Lai Daobin;Zhu Jingming(Fujian Academy of Building Sciences Co.Ltd.,Fuzhou,Fujian 350108;Fujian Key Laboratory of Green Building Technology,Fuzhou,Fujian 350108)

机构地区：[1]福建省建筑科学研究院有限责任公司,福建福州350108 [2]福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《江西建材》2021年第12期75-77,共3页Jiangxi Building Materials

摘　　要：以某预应力简支小箱梁桥改建为案例,在改建桥梁选择重新利用旧桥主梁之前,对既有小箱梁进行详细检测,掌握桥梁的病害、缺损状况,并进行新设计荷载作用下单梁静载试验,综合评定其结构性能,结果表明该批小箱梁满足拟新建桥梁结构受力要求。相关检测评定方法对于类似旧桥的重建利用具有参考借鉴意义。Taking the reconstruction of a prestressed simply supported small box girder bridge as the engineering background,before the reconstructed bridge is reused,the existing small box girder is inspected in detail to master the disease and defect of the bridge,and the single beam static load test under the new design load is carried out to comprehensively evaluate its structural performance.The results show that this batch of small box girders meet the structural stress requirements of the proposed new bridge.The correlation detection and evaluation method has reference significance for the reconstruction and utilization of similar old bridges.

关 键 词：旧桥改建 小箱梁 重建利 检测评定 有限元计算 

分 类 号：U418[交通运输工程—道路与铁道工程]