Simulation Analysis On The Construction Of CFST Arch Bridge

In recent years, as a new-type bridge, concrete-filled steel tubular(CFST) arch bridge has been deeply developed in our country's construction, for its own merits and can luckily make agreement with the factual situation of bridge engineering. Rib construction of the CFST arch bridge is a complicated course, it need to adopt space simulation analysis in order that final shape of the bridge and state of strength meet the designing requirement, and offer rational scientific dates for construction controlling.In this paper, basted on the sum-up and investigation of simulation calculation of long-span bridge construction in nation and international, A three dimensional finite element model of Feng Huang CFST bow string arch bridge is built by using the analysis software MIDAS6.11,the detailed approach of space simulation analysis of rib in CFST arch bridge is given out, and activation and passivation technology is introduced in the course of modeling for facilitating the stage analysis of construction, some coefficients of stability of different state construction are found.The space simulation analysis result indicates: simulation analysis of construction not only describe the whole construction course, response the strength behavior of whole construction course, but also confirm the rational state at stage of each construction, offer the middle goal state for constructing and monitoring controlling. Construction simulation analysis has become a dominating method of static analyzing modern bridge already. It is useful for the guidance and the reference to the readers who engage in bridge construction.