被动分肢墩的抗震设计原理和试验研究

提出了一种新型抗震墩柱———被动分肢墩的抗震设计思想,通过对墩柱截面功能的合理设计,利用地震荷载对其中“牺牲”部件的破坏,调整墩柱结构的抗推刚度和动力特性,提高墩柱的抗震性能。拟静力试验表明:与普通延性墩柱相比,被动分肢墩具有更好的延性和耗能能力。

Seismic Design Principle and Experimental Study of Passively Split Pier

The seismic design concept for a kind of novel seismic resistance pier column,the passively split pier is proposed by the authors.Through reasonable design of the pier column section functions and by making advantages of the sacrificing parts in the column that will be damaged by earthquake,the pushing stiffness and dynamic behavior of the pier column will be adjusted and the seismic performance of the column will be improved.The results of pseudo-static experiment reveal that the passively split pier has better ductility and energy dissipation capacity than those of the common ductile pier column.