Analytical and experimental study on the composite energy dissipation pier
Liu Xiaogang1,2 Li Lianyou3 Nie Xin1 Fan Jiansheng1
1. Tsinghua University, Beijing 100084, China;
2. Central Research Institute of Building and Construction Co. Ltd., MCC, Beijing 100088, China;
3. China Road and Bridge Corporation, Beijing 100011, China
Abstract：Experimental research is conducted on the replaceable energy-dissipation shear links fabricated with Q345GJ steel. The analysis results show that the shear links have stable hysteretic energy dissipation and good deformation capacity with rare cyclic hardening under multiple hysteretic loading at the same level. The ultimate plastic overstrengh coefficient is between 1.35 and 1.5, which satisfies the expected design requirements. One kind of new composite energy dissipation pier was developed using the shear links, and experiments were conducted on the pier specimens. The results indicate that by the used design method, the expected failure modes can be met, including the shear deformation in links and the plastic hinge at column feet. The proposed piers have good energy dissipation, ductility and deformation capacity. The drift ratio at the pier top is about 1/80 when the plastic hinge occurs at the column feet, indicating that the column feet can remain elastic under moderate seismic loads.
刘晓刚 李连友 聂鑫 樊健生. 组合式消能减震墩柱试验与设计方法研究[J]. 土木工程学报, 2017, 50(2): 73-81.
Liu Xiaogang Li Lianyou Nie Xin Fan Jiansheng. Analytical and experimental study on the composite energy dissipation pier. 土木工程学报, 2017, 50(2): 73-81.
