摘要
总结现有钢管混凝土拱桥成果,通过主动调索对钢管混凝土拱桥应力和变形的调整效果并不理想。以某钢管混凝土拱桥为研究背景,分析拱圈内混凝土灌注过程中,主动调整扣索索力对结构应力、变形的影响,调载控制达到减小初应力、主拱变形更均匀的目的,为相关研究及工程实践提供参考。
Summarizing the existing achievements of concrete filled CFST arch bridge,the effect of adjusting stress and deformation of concrete filled CFST arch bridge by active cable adjustment is not ideal. Taking a concrete filled steel tubular arch bridge as the research background,this paper analyzed the influence of adjusting the cable tension actively on the structural stress and deformation during the concrete pouring in the arch ring. Load regulation control can reduce the initial stress and achieve more uniform deformation of the main arch,which can provide reliable reference for relevant research and engineering practice.
引文
[1]龚成立,刘静.钢管混凝土拱桥管内混凝土灌注阶段扣索力计算[J].重庆交通大学学报(自然科学版),2009(11):211-213.
[2]林春姣,郑皆连.南盘江特大桥拱圈混凝土斜拉扣挂法施工分析[J].桥梁建筑,2016(15):79-81.