基于离架系数法斜拉桥施工索力的确定  

Determination of Cable Force of Cable-stayed Bridge Construction Based on the Method of Off-frame Coefficient

作　　者：项纯夫 王雪姣 XIANG Chunfu;WANG Xuejiao(Northern Engineering and Technology Corporation(Dalian),MCC,Dalian 116600,China)

机构地区：[1]中冶北方(大连)工程技术有限公司,辽宁大连116600

出　　处：《矿业工程》2022年第5期68-72,共5页Mining Engineering

摘　　要：基于近些年在工业厂矿区的设计中,随着桥梁技术的不断提升,同时现代化大规模工业厂区会出现跨河流、跨道路等情况,因此总图规划上经常会出现桥梁,并且桥梁跨度不断增大。鉴于此,对斜拉桥索力方面设计进行研究,为将来将斜拉桥引入工业厂区建设做铺垫。基于离架系数法对斜拉桥施工索力进行优化求解,不仅省去了大量提取数据的工作,更解决了施工状态求解中采用倒装分析法和无应力状态法等对此类施工桥梁难以求解出合理索力的问题。Based on the design of industrial plants and mining areas in recent years,with the continuous improvement of bridge technology and the situation that large-scale modern industrial plants will cross rivers and roads,the bridges often appear in the general plan planning,and the bridge span is constantly increasing.In view of this,the cable force design of cable-stayed bridge is studied in this paper,paving the way for introducing cable-stayed bridge into industrial plant construction in the future.In this paper,based on the off-frame coefficient method,the cable force of the cable-stayed bridge construction is optimized and solved,which not only saves a lot of data extraction,but also solves the problem that it is difficult to solve the reasonable cable force of this kind of construction bridge by using inversion analysis method and stress-free state method.

关 键 词：斜拉桥 支架现浇 施工索力 离架系数 影响矩阵 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]