Optimization of Pouring Scheme of Cast-in-place Reinforced Concrete Arch Ring
Reinforced concrete arch bridge is widely used in mountain bridge engineering because of its beautiful shape and good me-chanical characteristics.Arch frame cast-in-place method is a common construction method for mountain arch bridge.The different pouring procedures of arch ring affect the stress and deformation of arch ring and arch frame.This paper takes Chuanba Bridge as the background project,optimizes the pouring scheme of reinforced concrete arch ring,and uses finite element software to calculate and simulate the whole pouring process.The results show that after the optimization of arch ring pouring scheme,the deformation of arch frame is uniform,and the internal force state is close to the working condition under the full load of arch ring.The chord of arch frame is always under pressure,and there is no tensile stress,so as to ensure that the arch frame does not have inelastic deformation.The ten-sile stress of the arch ring concrete during the pouring process also meets the requirements of the specification,which can ensure the safety of the arch frame and the arch ring during the pouring process.
reinforced concrete arch bridgearch cast-in-place methodsegmental pouringoptimization of pouring scheme
万方数据
维普
