Abstract
There are a large number of inverted-T type concrete structures on soft soil foundation in the Yangtze River Delta area of China. Setting post-pouring belt is one of the effective methods to reduce the cracking of such structures during construction. However, there is still a lack of reference standard on how to quantify the interval between the post-pouring belts under different conditions. For this kind of structure, natural silo positions in three pouring seasons are considered, and the post-pouring belts with different spacing are set up in the base plate and pier wall. The stress development during the construction period of the concrete under different combination conditions are simulated by finite element method (FEM). The results show that under the condition of load during the construction period, the pouring blocks of the base plate on the soft foundation do not need to be provided with a post-pouring belt. While the pier wall is constrained by the base plate, the maximum tensile stress of the pier wall has a positive correlation with the maximum temperature of concrete.
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