To realize seismic-resilient reinforced concrete (RC) moment-resisting frame structures, a novel self-centering RC column with a rubber layer placed at the bottom (SRRC column) is proposed herein. For the column, the longitudinal reinforcement dissipates seismic energy, the rubber layer allows the rocking of the column, and the unbonded prestressed tendon enables self-centering capacity. A refined finite element model of the SRRC column is developed, the effectiveness of which is validated based on experimental results. Results show that the SRRC column exhibits stable energy dissipation capacity and no strength degradation; additionally, it can significantly reduce permanent residual deformation and mitigate damage to concrete. Extensive parametric studies pertaining to SRRC columns have been conducted to investigate the critical factors affecting their seismic performance.

为了实现抗震钢筋混凝土（RC）抗弯框架结构，本文提出了一种新型底部橡胶层自定心RC柱（SRRC柱）。对于柱来说，纵向钢筋耗散地震能量，橡胶层允许柱摇摆，无粘结预应力筋具有自定心能力。建立了SRRC柱的精细有限元模型，并根据实验结果验证了其有效性。结果表明，SRRC柱具有稳定的耗能能力，无强度下​​降；此外，它还可以显着减少永久残余变形并减轻对混凝土的损坏。已经对 SRRC 柱进行了广泛的参数研究，以调查影响其抗震性能的关键因素。