The Application Of CFSTAB Construction Technology In Building Weihe Bridge

With the national economics developing, the concrete filled steel tubular arch bridge (CFSTAB) has developed greatly. It is an ideal structure for long-cross arch bridge. However, the calculation theory and construction technology keep faultiness, especially lacking of analysis of test documents and reflection of information. For that case, the study of CFSTAB construction technology has its meaning of theory and application.The thesis analyzed the CFSTAB application and developing trend of both China and abroad, introduced main construction technology of the bridge, described the advantages and disadvantages of construction technique under different condition and the keystone and nodes process. Consult with the application of New Century Weihe Bridge of Baoji, demonstrated the applicable technology, the reasonable economical and reliable safety of choused scheme in detail. Validated the rationality of inter force distribution and the feasibility of construction technology of the arch bridge through scrutiny at the site. The completed New Century Weihe Bridge of Baoji is an evidence of validity and rationality of construction technology and provided an experience for concrete filled steel tubular arch bridge's construction and construction control.