CALCULATION OF THE CABLE-STAYED FORCE AND PRE-CAMER IN THE PROCESS OF ASSEMBLING ARCH BRIDGE SEGMENTS

Calculation of the cable-stayed force and Pre-camer is the difficulty and key problem in assembling a long-span arch bridge by using construction of non-bracket cable-stayed suspension. The improved elastic-rigid support method is abstained by modeled the current cable-stayed as rigidity supporting, the finished cable-stayed as elastic cable, as well as the joint of segments simulated as torsion spring. The method is able to determine the cable-stayed force and pre-camber simultaneously. The numerical results are verified by a bridge construction.