[1]何浩祥,赵鑫丽,程时涛.既有钢筋混凝土框架结构的多指标云模型地震损伤评估[J].世界地震工程,2023,39(01):059-68.[doi:10.19994/j.cnki.WEE.2023.0007]
 HE Haoxiang,ZHAO Xinli,CHENG Shitao.Seismic damage assessment of existing reinforced concrete frame structures based on multi index cloud model[J].,2023,39(01):059-68.[doi:10.19994/j.cnki.WEE.2023.0007]
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既有钢筋混凝土框架结构的多指标云模型地震损伤评估
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《世界地震工程》[ISSN:/CN:]

卷:
39
期数:
2023年01期
页码:
059-68
栏目:
常规论文
出版日期:
2023-02-15

文章信息/Info

Title:
Seismic damage assessment of existing reinforced concrete frame structures based on multi index cloud model
文章编号:
1007-6069(2023)01-0059-10
作者:
何浩祥赵鑫丽程时涛
北京工业大学工程抗震与结构诊治北京市重点实验室,北京100124
Author(s):
HE Haoxiang ZHAO Xinli CHENG Shitao
Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
关键词:
既有结构 钢筋混凝土结构 损伤指数 损伤评估 云模型
Keywords:
existing structure reinforced concrete structure damage index damage assessment cloud model
分类号:
TU375.4
DOI:
10.19994/j.cnki.WEE.2023.0007
文献标志码:
A
摘要:
目前的既有钢混结构地震损伤研究没有同时考虑不同抗震设计规范差异和耐久性两个因素对结构抗震性能的影响,且损伤指标较简单,在动力损伤分析中也存在局限。基于云模型的特点,提出了包括弹塑性耗能差率、刚度损伤指数、层间位移角和顶点位移角的多元结构损伤状态综合评估方法,能够同时考虑结构各损伤指数的随机性和模糊性。考虑不同版本抗震设计规范造成的结构性能差异和耐久性下降对结构性能的影响,设计3个典型五层钢混框架结构,进行增量动力分析,验证损伤评估方法的准确性。结果表明:随着抗震规范版本的更新,结构的损伤程度有适当减轻; 同一结构的损伤程度因混凝土碳化作用先减轻后加重; 采用弹塑性耗能差率表征既有结构的地震损伤效果优于刚度损伤指数; 基于多指标云模型损伤评估方法获得的云模型综合隶属度和综合损伤值能够更加细化和精确地描述结构损伤状态。
Abstract:
Abstract:The current research on seismic damage of existing reinforced concrete structures is lack of considering the influence of two typical factors together, which include the difference of different seismic design codes and durability degradation on the structural performance. Furthermore, the index represents structural damage is relatively single, which has limitations in dynamic damage analysis. Based on the characteristics of cloud model, and considering the structural responses of differential ratio of elastic plastic dissipated energy, the stiffness damage index, the interlayer drift ratio and the top drift ratio comprehensively, a multi-element comprehensive damage evaluation method is proposed, which can contain the randomness and fuzziness of each damage index together. Considering the structural inherent seismic performance difference caused by different seismic design codes and the influence of durability degradation on structural performance, three typical five story reinforced concrete frame structures are designed, and incremental dynamic analysis is carried out to verify the accuracy of damage assessment method. The results show that the structural damage degree decreases gradually with the update of the version of the seismic code. The damage degree of the same structure reduced firstly and then increased due to concrete carbonation develop, and the differential ratio of elastic plastic dissipated energy is better than the stiffness damage index to characterize the damage of existing structures. The comprehensive membership degree and comprehensive damage value of cloud model of structures calculated by the damage assessment method of multi index cloud model can describe the damage state more precisely.

参考文献/References:

[1] 洪博. 按新旧规范设计的RC框架结构基于IDA的抗震研究[D]. 镇江: 江苏科技大学, 2013.
HONG Bo. Seismic Research Based on IDA of RC Frame Stucture Designed by the New and Old Codes[D]. Zhenjiang: Jiangsu University of Science and Technology, 2013.(in Chinese)
[2] 韩建平, 黄林杰. 新旧规范设计RC框架地震易损性分析及抗整体性倒塌能力评估[J]. 建筑结构学报, 2015, 36(增刊2): 92 — 99.
HAN Jianping, HUANG Linjie. Seismic fragility analysis and global collapse resistance capacity investigation on RC frame designed by new and old seismic design codes[J]. Journal of Building Structures, 2015, 36(S2): 92 — 99.(in Chinese)
[3] 陈志宏. 既有RC框架结构抗震性能评估[D]. 青岛: 青岛理工大学, 2014.
CHEN Zhihong. Seismic Performance Evaluation of Existing RC Frame Structure[D]. Qingdao: Qingdao Tehcnology University, 2014.(in Chinese)
[4] 陈新孝, 牛荻涛. 锈蚀钢筋混凝土框架地震反应分析[J]. 西安建筑科技大学学报(自然科学版), 2018, 50(3): 361 — 367.
CHEN Xinxiao, NIU Ditao. Earthquake response analysis on corroded reinforced concrete frame[J]. Journal of Xi' an University of Architecture & Technology(Natural Science Edition), 2018, 50(3): 361 — 367.(in Chinese)
[5] 何浩祥, 陈奎, 范少勇. 基于弹塑性耗能差率的地震损伤评估模型及分析方法[J]. 振动工程学报, 2018, 31(3): 382 — 390.
HE Haoxiang, CHEN Kui, FAN Shaoyong. Seismic damage model based on differential ratio of elastic plastic dissipated energy and application[J]. Journal of Vibration Engineering, 2018, 31(3): 382 — 390.(in Chinese)
[6] HE Haoxiang, CONG Maolin, LV Yongwei. Earthquake damage assessment for RC structures based on fuzzy sets[J]. Mathematical Problems in Engineering, 2013, 2013(1): 1 — 11.
[7] 李德毅, 杜鹢. 不确定性人工智能(第2版)[M]. 北京: 国防工业出版社, 2005: 44 — 53.
LI Deyi, DU Yi. Artificial Intelligence with Uncertainty(Second Edition)[M].Beijing: National Defense Industry Press, 2005: 44 — 53.(in Chinese)
[8] 陈国兴. 中国建筑抗震设计规范的演变与展望[J]. 防灾减灾工程学报, 2003,23(1): 102 — 113.
CHEN Guoxing. The evolution and prospect of the code for seismic design of buildings in China[J]. Journal of Disaster Prevention and Mitigation Engineering, 2003, 23(1): 102 — 113.(in Chinese)
[9] 赵朝林. 新旧建筑抗震设计规范对比研究——以混凝土框架结构为例[D]. 武汉: 武汉理工大学, 2013.
ZHAO Chaolin. The Comparative Study of the Old and New Code for Seismic Design of Buildings —Taking the Concrete Frame Structure as an Example[D]. Wuhan: Wuhan University of Technology, 2013.(in Chinese)
[10] 周长安. 基于平面规则钢筋混凝土杠架结构的新旧抗震设计规范对比研究[D]. 重庆: 重庆大学, 2002.
ZHOU Changan. Comparision Research on the New Code for Seismic Design of Buildings and the Old one Based on the Regular Plane RC Frame Structures[D]. Chongqing: Chongqing University, 2002.(in Chinese)
[11] 肖峰. 按新旧规范设计的非规则框架结构的抗震性能对比分析[D]. 重庆: 重庆大学, 2003.
XIAO Feng. Comparing and Analysis of Seismic Performance of the Irregular RC Frame Designed by the New and the Old Codes[D]. Chongqing: Chongqing University, 2003.(in Chinese)
[12] GB/T 51355—2019 既有混凝土结构耐久性评定标准[S]. 北京: 中国建筑工业出版社, 2019.
GB/T 51355—2019 Standard for Durability Assessment of Existing Concrete Structures [S]. Beijing: China Architecture & Building Press, 2019.(in Chinese)
[13] 牛荻涛, 王庆霖. 一般大气环境下混凝土强度经时变化模型[J]. 工业建筑, 1995, 25(6): 36 — 38.
NIU Ditao, WANG Qinglin. Models of concrete strength changing with time in general air environmet[J]. Industrial Construction, 1995, 25(6): 36 — 38.(in Chinese)
[14] DU Y G, CLARK L A, CHAN A H C. Residual capacity of corroded reinforcing bars[J]. Magazine of Concrete Research, 2005, 57(3): 135 — 147.
[15] 牛荻涛, 王庆霖, 王林科. 一般大气环境混凝土中钢筋锈蚀量的估计[J]. 工程力学, 1997, 14(1): 92 — 99.
NIU Ditao, WANG Qinglin, WANG Linke. Estimation of steel corrosion extent in reinforced concrete structures under the air environment[J]. Engineering Mechanics, 1997, 14(1): 92 — 99.(in Chinese)
[16] 吴庆, 袁迎曙. 锈蚀钢筋力学性能退化规律试验研究[J]. 土木工程学报, 2008, 41(12): 42 — 47.
WU Qing, YUAN Yingshu. Experimental study on the deterioration of mechanical properties of corroded steel bars[J]. China Civil Engineering Journal, 2008, 41(12): 42 — 47.(in Chinese)
[17] KRAJCINOVIC D, LEMAITRE J. Continuum Damage Mechanics Theory and Application[M]. Vienna: Springer Vienna, 1987.

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备注/Memo

备注/Memo:
收稿日期:2022-04-19; 修回日期:2022-08-31
基金项目:国家重点研发计划项目课题(2017YFC1500604); 国家自然科学基金项目(51878017)
作者简介: 何浩祥(1978 —), 男, 教授, 博导,主要从事结构抗震减震及健康监测研究. E-mail:hhx7856@163.com
更新日期/Last Update: 1900-01-01