Safety Evaluation On Arch Ribs Of CFST Stiffen Framework Arch Bridge Under Construction Stages

Stiffen Framework arch bridge of concrete filled steel tube is a kind of materialproperties and construction method of the improved bridge type. Due to its advantages as wellas the actual condition of construction phase in our country’s bridge, thus it obtained theenormous development. Stiffen Framework arch bridge of concrete filled steel tube is a kindof structure form of this kind of concrete filled steel tube arch bridge, and main archconstruction stability is crucial to the whole bridge forming. In order to ensure the bridge’salignment and stress state meet the design requirements, the using space simulation providesthe scientific basis for this type of bridge construction control.In view of the Youxi bridge, I established a full bridge main arch rib of the space finiteelement model by the finite element analysis software Midas/Civil, and analyzed the stressand stability of the main construction phase. This article puts forward a reasonable solutionafter I compared several different situations of concrete construction program. In themodeling process, I used the activation and deactivation technology in order to makeconstruction stage analysis convenient.This article analyzed two of the most unfavorable phase stability on the constructionstage, ensured safety and reliability of stability.This study contributes to the understanding of the construction process of StiffenFramework arch bridge of concrete filled steel tube, and provides experiences and suggestionsfor this kind of bridge’s design.