拱桥加固及改造方法研究  

Study on arch bridge reinforcement and reconstruction technology

作　　者：冯良勇 Feng Liangyong(Liaoning Provincial Transportation Planning and Design Institute Co.,Ltd.,Shenyang 110166,China)

机构地区：[1]辽宁省交通规划设计院有限责任公司,辽宁沈阳110166

出　　处：《山西建筑》2021年第24期94-96,共3页Shanxi Architecture

基　　金：辽宁交通科技项目(201513)。

摘　　要：辽宁省公路建设一直走在全国前列,由于各种因素影响,部分桥梁实际不满足现有规范极限承载能力要求,因此加强桥梁加固及改造技术应用后评价工作是十分必要的,对于全面衡量桥梁加固及改造的实际效果具有重要意义。对拱桥的常见病害进行分析,并统计了该种桥型的加固方法,主要对比分析锚喷混凝土法、增大拱肋法、增设拱肋法的加固效果,总结了不同加固方法的使用年限,为该种桥型加固及改造提供参考。Highway construction in Liaoning Province has always been at the forefront of the country.Due to various factors,some bridges actually do not meet the requirements of the ultimate load-bearing capacity of the existing specifications.Therefore,it is very necessary to strengthen the post-evaluation work of the application of bridge reinforcement and reconstruction technology,and it is of great significance for comprehensively measuring the actual effect of bridge reinforcement and reconstruction.This paper analyzes the common diseases of hollow slabs and T-archs,and counts the reinforcement methods of this type of bridge,mainly to compare and analyze the reinforcement effects of the pasted fiber method,pasted steel plate method,enlarged section method and simply supporte d variable continuous method.The service life of different reinforcement methods is summarized to provide reference for this kind of bridge reinforcement and reconstruction.

关 键 词：公路拱桥 承载能力 桥梁加固 评价指标 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]