STRESS AND DEFORMATION ANALYSIS OF A U-SHAPED THIN AQUEDUCT BASED ON SHELL ELEMENT

In order to study the stress and deformation characteristics of Jigongzui U-shaped thin shell aqueduct structure, element in ANSYS is proposed establish three-dimensional finite model for numerical calculation, relevant mechanical parameters are obtained by detecting depth concrete carbonization. The simulated results show that: (1) carbonization reached 20mm, accounting about 20% total thickness channel wall; (2) With increase water level, body gradually increase. maximum deflection middle span 6.98mm, which less than limit value specification, but tension some areas at bottom obvious, exceeding allowable tensile strength. It suggested strengthen pasting high-performance fiber materials improve distribution body; (3) Shell has fast calculation speed high efficiency when simulating similar aqueduct, can be popularized structures.