The Impact of Cold Wave Strike on Thin-Walled Concrete Structure

Abstract

When the cold wave comes, there are worse effects on thin-walled concrete structure than its on mass concrete structure during construction. In the view of this problem, the 3-D FEM is adopted to simulate the thermal field and stresses field of thin-walled concrete launder during construction when it is struck by cold wave. The simulation results show that shrinkage stress in the surface and inner of thin-walled concrete structure will appear and bring a lot of difficulties for temperature control and crack prevention. In order to reduce the impact degree of cold wave strike, some effective measures should be taken, including enhancing the level of external heat preservation and prolonging the form removal time and so on. This research is of practical reference value for the construction of the concrete structure which is built in the area where cold wave easily occurs.