预应力连续桥梁评估  

Evaluation of prestressed continuous bridges

作　　者：孙逢董 SUN Fengdong(Jining Hongxiang Highway Survey,Design and Research Institute Co.,Ltd.,Jining 272000,China)

机构地区：[1]济宁市鸿翔公路勘察设计研究院有限公司,山东济宁272000

出　　处：《中国高新科技》2025年第2期108-110,共3页

摘　　要：预应力连续桥梁是一种常见的大跨度桥梁,在使用过程中需要定期评估以确保其安全性和可靠性。文章对预应力连续桥梁的结构特点以及预应力连续桥梁中常见的结构问题进行分析,探讨预应力连续桥梁的评估方法。通过结合实际工程案例,对山东省某预应力连续桥梁采用有限元软件进行计算分析,研究结果表明,主梁所有截面主力上缘的最小压实力为6.2MPa,最大压实力为14.9MPa,均满足规范要求。旨在为预应力连续桥梁的安全评估提供新的思路和方法,促进桥梁结构健康监测与维护技术的发展。Pre stressed continuous bridges are a common type of large-span bridges that require regular evaluation during use to ensure their safety and reliability.The article analyzes the structural characteristics of prestressed continuous bridges and common structural problems in prestressed continuous bridges,and explores the evaluation methods of prestressed continuous bridges.By combining practical engineering cases,finite element software was used to calculate and analyze a prestressed continuous bridge in Shandong Province.The research results showed that the minimum compressive strength of the upper edge of the main force in all sections of the main beam was 6.2MPa,and the maximum compressive strength was 14.9MPa,all of which met the requirements of the specifications.Aiming to provide new ideas and methods for the safety assessment of prestressed continuous bridges,and promote the development of bridge structural health monitoring and maintenance technology.

关 键 词：跨度桥梁 材料测试 预应力连续桥梁 数值模拟 

分 类 号：U441[建筑科学—桥梁与隧道工程]