刚架拱桥微弯板曲面型钢梁加固法分析  

Curved Steel Beam Reinforcement Method Analysis of Slightly Curved Board in Rigid Frame Arch Bridge

作　　者：黄德耕 罗吉智 吴志隆[2] 

机构地区：[1]广西壮族自治区交通规划勘察设计研究院,广西南宁530029 [2]广西大学土木建筑工程学院,广西南宁530004

出　　处：《西部交通科技》2013年第2期34-37,48,共5页Western China Communications Science & Technology

基　　金：广西交通厅科技项目计划"钢筋混凝土刚架拱桥加固设计与理论研究"(2010-109-06)

摘　　要：文章针对钦江二桥横系梁的病害及病因,提出一种新的刚架拱桥微弯板加固技术——附加曲面型钢梁加固法,并采用先整体后局部的分析方法,对加固前后微弯板结构的力学特性进行了有限元计算。结果表明:该加固方法能有效保证曲面型钢梁与微弯板共同工作,且加强了整个结构的横向联系,提高微弯板的承载能力,是一种值得借鉴、推广的微弯板加固技术。Targeting on the diseases and causes of Qinjiang 2nd Bridge straining beam,this article proposed a new slightly curved board reinforcement technology for rigid frame arch bridge-additional curved steel beam reinforcement method,and conducted the finite ele-ment alculation on the mechanical characteristics of curved board structure before and after the reinforcement by using the analysis method of ＂from the overall to the Iocal＂.The results showed that： this reinforcement method can effectively guarantee the joint working of curved steel beam and slightly curved board,which strengthened the horizontal linkages of entire structure and improved the carrying capacity of slightly curved board,thus it is a curved board

关 键 词：曲面型钢梁 刚架拱桥 微弯板 加固 分析 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]