Filled Steel Tubular Arch Bridge Creep And Shrinkage Of Arbitrary Shape Of The Arch Rib Section Stress Redistribution

In this paper, effect of stress redistribution due to creep and shrinkage of concrete of CFST in arch bridge is researched Firstly, a deepgoing research is made on the analysis method of CFST truss arch considering the local deform of nodes. QR method is used to analyze the practice steps, and the semi-analytic expression of iryx;r-force distribution in arbitrary cross section of CFST arch bridge v-d the stress of steel tube arid coii-rea; trs derived. Compared with finite element method, the results v.v, compatible When analyze the -Acfo'T.i 4'vi jvress of nodes, the inner-force and deform of beam cif-.cr.--^ can be used as the cute; leave w deibir.i v