Simplified theoretical model for self-centering concrete bridge piers with stiffness deterioration
LIU Hui1, HE Minghua1, XIN Kegui1, GUO Jia2, LIU Wen1
1. Department of Civil Engineering, Tsinghua University, Beijing 100084, China;
2. Research Institute of Highway, Ministry of Transport, Beijing 100088, China
Abstract：Self-centering concrete bridge piers (SCCP), which have been used to retrofit bridge piers to give better seismic response, effectively reduce residual displacements during severe earthquakes. This study gives a simplified theoretical model for self-centering concrete bridge piers including a stiffness deterioration analysis and lateral force-displacement analysis. The stiffness deterioration analysis introduces 3 damage factors for γu, γc and γr. These damage factors illustrate the damage caused by increasing lateral displacements. The theoretical model has been validated against existing experimental data with good agreement.
刘晖, 何铭华, 辛克贵, 郭佳, 刘文. 带刚度退化的一种自复位混凝土桥墩简化分析模型[J]. 清华大学学报（自然科学版）, 2016, 56(4): 341-347.
LIU Hui, HE Minghua, XIN Kegui, GUO Jia, LIU Wen. Simplified theoretical model for self-centering concrete bridge piers with stiffness deterioration. Journal of Tsinghua University(Science and Technology), 2016, 56(4): 341-347.
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2016, Vol. 56 
