In this paper, a self-centering rotational viscoelastic coupling beam damper with shape memory alloy (SMA) was proposed to enhance the seismic resilience of structures and achieve high-performance seismic objectives. To validate the effectiveness of the structural system with self-centering dampers, a conventional reinforced concrete frameshear wall structure and a concrete frame with self-centering dampers were designed, and nonlinear time-history analysis and incremental dynamic analysis (IDA) were conducted through nonlinear finite element models. Firstly, the response characteristics of the two types of structures under the maximum considered earthquakes (MCEs) were analyzed. Furthermore, with peak ground acceleration as the ground motion intensity measure, and maximum inter-story drift ratio and maximum residual drift ratio as the damage measures, the probabilistic seismic demand models and fragility curves under four different structural damage states were obtained according to the IDA results, which quantified the effects of the self-centering dampers on the seismic performance and post-earthquake recoverable performance of the reinforced concrete frame-shear wall structure. The results show that under maximum considered earthquakes, the residual drift ratio of the self-centering frame can be reduced by 34%; the post-earthquake recovery performance can be improved by 23%, and the self-centering frame has good seismic collapse resistance.
LIU Xuanhan
,
SHU Zhan
. Seismic response and fragility of frame-shear wall structures with self-centering viscoelastic dampers[J]. Journal of Shanghai University, 2026
, 32(3)
: 533
-543
.
DOI: 10.12066/j.issn.1007-2861.2656
[1] Kawashima K, MacRae G A, Hoshikuma J, et al. Residual displacement response spectrum [J]. Journal of Structural Engineering, 1998, 124(5): 523-530.
[2] Oudah F, Ei-Hacha R. Innovative self-centering concrete beam-column connection reinforced using shape memory alloy [J]. ACI Structural Journal, 2018, 115(3): 607-620.
[3] 金超斌, 张波, 周志钢, 等. 非对称自复位SMA连接的力学性能研究[J]. 地震工程与工程振动, 2023, 43(6): 119-128.
[4] 吕兆华, 平奕炜, 方成, 等. SMA-VED混合自复位支撑钢框架地震易损性与风险分析[J]. 世界地震工程, 2022, 38(2): 10-20.
[5] 张哲熹, 梁栋, 方成, 等. 采用SMA拉索的摇摆自复位桥墩试验研究与动力分析[J]. 世界地震工程, 2020, 36(4): 138-146.
[6] Shu Z, Gan Z Z, Fang C, et al. Replaceable rotational viscoelastic dampers for improving structural damping and resilience of steel frames [J]. Journal of Earthquake Engineering, 2021, 27(4): 787-809.
[7] 中国建筑科学研究院. GB 50011|2010, 中国建筑抗震设计规范[S]. 北京: 中国建筑工业出版社, 2010.
[8] 中国建筑科学研究院. JGJ 3|2010, 中国高层建筑混凝土结构技术规范[S]. 北京: 中国建筑工业出版社, 2010.
[9] American Society of Ciril Engineers. ASCE/SEI 41|13, Seismic evaluation and retrofit of existing buildings [S]. Reston, Virginia, USA: American Society of Civil Engineering, 2017.
[10] Kwan A K H, Zhao Z Z. Cyclic behaviour of deep reinforced concrete coupling beams [J]. Proceedings of the Institution of Civil Engineers-Structures and Buildings, 2002, 152(3): 283- 293.
[11] Federal Emergency Management Agency. Seismic performance assessment of buildings: FEMA P58[R]. Washington D C: Federal Emergency Management Agency, 2012．
[12] 简涛, 马玉宏, 赵桂峰, 等. 隔震连续梁桥易损性分析中标准差的取值研究[J]. 地震工程与工程振动, 2016, 36(2): 93-101.
[13] Applied Technology Council. Quantification of building seismic performance factors: FEMA P695[R]. Redwood City, California: Applied Technology Council, 2009．
