超大件特种车辆过桥的桥梁加固技术研究  

Research on Bridge Reinforcement Technology for Extra-Large Special Vehicles Crossing the Bridge

作　　者：孟德锋[1] MENG Defeng(China Railway 14th Bureau Group Corporation Limited,Jinan,Shandong Province,250014 China)

机构地区：[1]中铁十四局集团有限公司,山东济南250014

出　　处：《科技资讯》2025年第3期181-183,188,共4页Science & Technology Information

摘　　要：大件特种车辆在通行常规桥梁时的安全性是工程施工中的一个焦点问题。以大件特种车辆通过某隧道工程中16 m的单跨简支梁为实际工程案例,提出了桥上吊桥、桥下支承和桥上桥3种方案。分别计算了桥梁加固前后的承载能力,从受力分析、经济效益、施工难易程度等方面对比了3种不同的加固方案,最终确定为桥上吊桥的方案,有效解决了原桥梁结构抗弯、抗剪承载能力不足的问题。The safety of large special vehicles crossing conventional bridges is a key concern in engineering con-struction.Three schemes were proposed for a large special vehicle crossing a single span simply supported beam of 16 meters in a tunnel project,including:a bridge-mounted suspension bridge,a bridge-supported bridge,and a bridge-over-bridge.The bearing capacity of the bridge before and after reinforcement was calculated,and the three reinforcement schemes were compared in terms of stress analysis,economic benefits,and construction feasibil-ity.The bridge-mounted suspension bridge solution was finally determined,successfully addressing the issues of in-sufficient bending and shear resistance of the original bridge structure.

关 键 词：特种车辆 桥梁 承载能力 加固方案 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]