大跨度钢管混凝土拱桥吊杆索力优化实用方法  

Application of suspender cable force optimization for long-span concrete-filled steel tubular arch bridges

作　　者：于孟生 姚鑫玉 郑皆连[1] 谢开仲 王龙林 郝天之 YU Mengsheng;YAO Xinyu;ZHENG Jielian;XIE Kaizhong;WANG Longlin;HAO Tianzhi(College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Guangxi Transportation Science and Technology Group Co.,Ltd.,Nanning 530007,China;Guangxi Beitou Traffic Maintenance Technology Group Co.,Ltd.,Nanning 530029,China)

机构地区：[1]广西大学土木与建筑工程学院,南宁530004 [2]广西交科集团有限公司,南宁530007 [3]广西北投交通养护科技集团有限公司,南宁530029

出　　处：《桂林理工大学学报》2023年第1期78-82,共5页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(51878186,51738004,51868006);南宁市“邕江计划”项目(2018-01-04)。

摘　　要：为了简化大跨钢管混凝土拱桥的合理成桥索力调整方案,建立了一种新的吊杆索力优化调整方法。首先基于索力优化的影响矩阵原理,提出了合理成桥索力计算方法,然后结合钢管混凝土拱桥自身受力特性,针对工程中常用的影响矩阵法进行改进。结果表明:优化后的方法可使吊杆张拉简单快捷,利用改进后的影响矩阵法进行大跨钢管混凝土拱桥吊杆索力的调整,更符合吊杆调整的实际施工过程。In order to simplify the adjustment of cable force for long-span concrete-filled steel tubular arch bridge,a new optimal adjustment method of suspender cable force is studied and established.Firstly,based on the matrix principle of cable force optimization,a reasonable calculation method of completed cable force is proposed.Combined with the mechanical characteristics of concrete-filled steel tubular arch bridge,the influence matrix method commonly used in engineering is improved.Analysis results show that the suspender tensioning is simple and fast after optimization.The improved influence matrix method is used to adjust the suspender cable force for long-span concrete-filled steel tubular arch bridge.It is more accord with the actual construction process of suspender adjustment.

关 键 词：大跨度钢管混凝土拱桥 加权矩阵 吊杆索力优化 施工监控 

分 类 号：TU318[建筑科学—结构工程]