拱上恒载调整的石拱桥加固改造研究  

Research on strengthening technology of stone arch bridge based on dead load adjusting of spandrel structure

作　　者：王鹏[1] 周建庭[1] 

机构地区：[1]重庆交通大学,重庆400074

出　　处：《重庆交通学院学报》2006年第B06期12-15,共4页Journal of Chongqing Jiaotong University

基　　金：重庆市重大科技攻关项目(CSTC2005AA6010);交通部西部交通建设科技项目(200431878518)

摘　　要：结合工程实践,通过原理分析,恒载调整内容、幅度和调整工序的介绍,提出了基于拱上恒载调整的石拱桥加固改造技术.加固前后桥梁实测拱轴线变化及加固前后的理论分析比较结果表明,该加固改造技术实用、可靠,可望为我国同类桥梁的加固改造起到积极的借鉴作用.Reinforced concrete confining method based on dead load adjusting of spandrel structure is expatiated in the paper; besides the engineering measures of dead load adjusting are stated. Through the comparision of the survey of the arch curve variety, the strengthening practice achieves tangible results. The effectiveness shows that the strengthening method is applicable and reliable and it could be a successful practice for repairing and strengthening the similar bridges.

关 键 词：石拱桥 加固改造 减载 高压灌浆 钢筋砼套箍 

分 类 号：U448.32[建筑科学—桥梁与隧道工程]