用灰色系统理论确定高速铁路桥梁施工预拱度  

Determining construction camber of a rapid transit railway bridge by grey system theory

作　　者：王赞芝[1] 张锴[1] 王淼[2] 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006 [2]柳州铁道职业技术学院,广西柳州545616

出　　处：《铁道科学与工程学报》2015年第3期482-488,共7页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51009030);广西科技大学博士基金资助项目(院科博0901)

摘　　要：为了满足高速铁路对桥面标高的严格要求,应用灰色系统理论,建立高速铁路斜交连续梁桥预拱度的设置方法,并将该方法运用于京沪高速铁路跨秦淮新河特大桥的实时施工控制。结果表明,大桥以很高的精度顺利合龙,成桥后的线形和内力满足设计要求。该方法减少了施工控制的难度,效果理想而简便易行,研究成果可应用于使用悬臂浇筑法的连续桥梁施工中。In order to meet the strict demand of bridge deck elevation in high speed railway,the gray system the-ory was used to create the pre -cambering setting method for a continuous skew bridge.With this method,the real time construction control of the Extra Large Bridge across New Qinhuai River on Beijing -Shanghai Rapid Transit Railway was conducted.The result shows that the bridge is closed successfully in three places with very high precisions,its shapes and internal forces satisfy design demands.Application of this method in this bridge indicates that this method can reduce the difficulty in construction control,reach an ideal construction effect, and be performed easily.This approach can be used in similar continuous bridge construction practices where cantilever erection is used.

关 键 词：铁路桥 箱梁桥 斜桥 悬臂架桥 施工管理 高速铁路 灰色系统理论 连续监测 

分 类 号：U238[交通运输工程—道路与铁道工程]