成都至南充入城高速公路30m跨度钢混叠合梁的检测与评价  

Detection and Evaluation of 30 m Span Steel-concrete CompositeBeam of Chengdu-Nanchong Rucheng Expressway

作　　者：周杰 ZHOU Jie(Wuhan Central Engineering Test Co.,Ltd.,Wuhan,Hubei 430014,China)

机构地区：[1]武汉市中心工程检测有限公司,湖北武汉430014

出　　处：《黑龙江交通科技》2024年第10期47-51,共5页Communications Science and Technology Heilongjiang

摘　　要：随着国家经济的飞速发展,高速公路桥梁面临着车流量大、重载车辆多、车速快等挑战,对高速公路桥梁的结构安全及耐久性提出了更高的要求,因此高速公路桥梁的日常检测分析与评估显得尤为重要。以成都至南充入城高速公路30 m跨度钢混叠合梁桥为研究对象,对桥梁技术状况影响因素进行分析和分级,建立桥梁劣化特征指标的评价体系,采用模糊综合评价法对该桥梁的技术状况等级进行系统分析与评价,依据大隶属度原则,得出该桥梁的技术状况等级为Ⅱ级,仅需进行简单加固维修即可实现正常安全使用。With the rapid development of the national economy,expressway bridges are facing challenges such as large traffic flow,heavy-duty vehicles,and fast speed.Higher requirements are put forward for the structural safety and durability of expressway bridges.Therefore,the daily detection,analysis and evaluation of expressway bridges are particularly important.Taking the 30 m span steel-concrete composite girder bridge of Chengdu-Nanchong Rucheng Expressway as the research object,the influencing factors of bridge technical condition are analyzed and graded,and the evaluation system of bridge deterioration characteristic index is established.The fuzzy comprehensive evaluation method is used to systematically analyze and evaluate the technical condition grade of the bridge.According to the principle of large membership degree,it is concluded that the technical condition grade of the bridge is grade II,and the normal and safe use can be realized only by simple reinforcement and maintenance.

关 键 词：高速公路桥梁 钢混叠合梁 模糊综合评价法 技术状况 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]