开槽预应力闸墩应力集中特性研究

s a new type of structure, the slotted pre-stressed pier has been used in actual projects, but in theory and principle, there are no breakthroughs. In order to analyze the stress concentration around the slot, the three-dimensional nonlinear analysis for a pre-stressed pier of a gravitational dam has been done by using FEM software in this paper. By changing the slot’s position and size, the state of stress has been analyzed in the pier. At last, the complex function method is used to analyze the state of stress around a rectangular hole in infinite elastic plane. The law of stress changes in the plane has been compared with the pre-stressed pier. The results of the study show that setting a slot in the anchor block can not only be used to increase pre-stress’ value, but also be used to transfer the pre-stress to more effective regions.