Large Span Concrete Filled Steel Tubular Arch Bridge Design

Concrete filled steel tube after publish, the steel pipe concrete arch bridge gets a quick development in the our country, opposite and speech our country build the arch bridge technique of the steel pipe concrete have already attained international advanced level, our country to the theory of the steel pipe concrete arch bridge the research also obtained an equal result, however, Be a kind of application the green lumber anticipate of bridge type, steel pipe concrete the theory of the arch bridge study currently return opposite hysteresis, can not keep up with the step of its development. But still have no complete design specification currently, especially big concrete arch bridge of the span steel pipe still has a lot of problems to deserve research study.This text with 1000 island lake No. 1 bridge (change name to the gold bamboo card great bridge currently) is engineering back ground, as to it' s some design problems for win carry on a research study and mainly include the following what time contents:1, and 1000 adoption clear span of the island lagoon No. 1 bridge main bridge 252 mses of up the accept type steel pipe concrete arch bridge, at up the third inside the different countries of the accept type arch bridge midspan of the steel pipe concrete path, the same kind bridge second of the express highway. Today flown to soon develop in the high standard highway, classified highway, the long span bridge beam won't break surging now and this text will inquiry into the arch bridge applied possibility of the steel pipe concrete and development fore ground.2, for steel pipe concrete arch bridge, the steel pipe concrete arch rib is a most to be subjected to towing force structural member. In the process of design in, look for the most reasonable arch rib cross section, arch axis coefficient, arch ring wall thickness is the valve key of design. This text will combine thousand the island lagoon No.1 the engineering back ground of the bridge, investigate under various design parameter circumstance of arch rib stress circumstance, pass reference for the design of the same kind pattern bridge thus.3, stability the problem be an importance within the arch bridge computation of the steel pipe concrete stability, because of cut of the arch bridge arch rib of the steel pipe concrete the noodles spoil square rule, time area concentration diagram generally than together the reinforced cnncrete arch bridge of span be small and the stability usually controls design. The construction work's condition of the steel pipe concrete arch bridge is more and the stability coefficient of each work condition is all different. This text will look for feature work condition, solve stability coefficient, currently the specification have no under definitely specified circumstance, inquiry into suitable stability coefficient.4, so far, our country didn't0 yet related design technical specification concerning steel pipe concrete arch bridge, but the application of steel pipe concrete have been very widespread. This text will combine this engineering illustration, inquiry into suitable computation device, design parameter and part to take a value and pass reference foe the same kind pattern bridge design.