Cable Force Calculation of Cable Hoisting of CFST Arch Bridge Research

To effectively control the stress state and spatial alignment of arch ribs in cable hoisting construction a long-span, concrete-filled, steel tube bridge ensure safety structure, it is necessary to calculate determine appropriate force. Based on actual project double-span, tubular bridge, stage left span from beginning closure taken as an example. The linear method “quiet do not move” adopted. principle that vertical displacement front end installed segment caused by self-weight new equal previous tension segment, force calculated forward iteration. Finally, based theory stress-free method, ideal design structure was achieved. results show after error range −13.33–15.40% bank −8.37–11.00% right bank. elevation rib −0.003–0.043 m −0.007–0.032 overall ±7.0 MPa. between theoretical value within scope specification requirements, which meets requirements. After closure, shape smooth