|Table of Contents|

Seismic risk assessment method for frame structures considering steel corrosion(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2024年05期
Page:
52-62
Research Field:
建筑结构
Publishing date:

Info

Title:
Seismic risk assessment method for frame structures considering steel corrosion
Author(s):
LI Bo;  XU Yanan;  YAN Guoqian;  YANG Xu;  ZHANG Yunhao
(School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
Keywords:
reinforced concrete frame;  earthquake risk;  capacity degradation;  steel corrosion;  incremental dynamic analysis
PACS:
TU375.4
DOI:
10.19815/j.jace.2022.09008
Abstract:
In order to scientifically evaluate the seismic risk of steel corrosion in frame structures, the effects of steel corrosion and concrete cracking on the anti-collapse performance of frame structures were studied. The mean deformation capacity of the structure corresponding to the collapse limit state was defined as a function of time, and the annual failure probability of the structure collapse was integrated by considering the aging time. The seismic collapse probability of the structure considering the corrosion effect of steel bars was obtained. A seismic risk assessment method considering the aging effect of structures was proposed, and this method was applied to corroded RC frame structures with different seismic intensities. The impact of structural aging effects on seismic risk near the collapse limit state was studied. The results show that the collapse margin ratio(CMR)of a frame structure with 6, 7, 8-degree seismic intensities that has been corroded for 50 years is 18.7%, 31.0%, and 19.4% lower than that of a non corroded structure, respectively. The mean annual collapse rate of a frame structure with 6, 7, 8-degree seismic intensities considering aging effects for 50 years is 28.6%, 59.8%, and 32.6% higher than that of a structure without considering aging effects, respectively. It is recommended to consider the influence of structural aging effects in the seismic risk assessment of RC frame structures in different intensity zones.

References:

[1] 惠云玲,林志伸,李 荣.锈蚀钢筋性能试验研究分析[J].工业建筑,1997,27(6):10-13,33.
HUI Yunling,LIN Zhishen,LI Rong.Experimental study and analysis on the property of corroded rebar[J].Industrial Construction,1997,27(6):10-13,33.
[2]YU X H,DAI K Y,LI Y S.Variability in corrosion damage models and its effect on seismic collapse fragility of aging reinforced concrete frames[J].Construction and Building Materials,2021,295:123654.
[3]唐站站,陈 正,薛寒杨.腐蚀后钢筋的简化本构模型研究[C]//陆新征.第30届全国结构工程学术会议.北京:《工程力学》杂志社,2021:342-345.
TANG Zhanzhan,CHEN Zheng,XUE Hanyang.Study on simplified constitutive model of corroded steel bars[C]//LU Xinzheng.The 30th National Structural Engineering Academic Conference.Beijing:Engineering Mechanics Press,2021:342-345.
[4]郑山锁,梁泽田,杨 松,等.近海大气环境下RC结构钢筋锈蚀程度预测[J].重庆大学学报,2024,47(2):22-31.
ZHENG Shansuo,LIANG Zetian,YANG Song,et al.Corrosion prediction of reinforced concrete structure in marine atmospheres[J].Journal of Chongqing University,2024,47(2):22-31.
[5]郑 跃,郑山锁,董立国,等.锈蚀钢筋混凝土柱等效塑性铰长度计算方法[J].中南大学学报(自然科学版),2021,52(12):4424-4433.
ZHENG Yue,ZHENG Shansuo,DONG Liguo,et al.Calculation method of equivalent plastic hinge length of corroded reinforced concrete columns[J].Journal of Central South University(Science and Technology),2021,52(12):4424-4433.
[6]MEDA A,MOSTOSI S,RINALDI Z,et al.Experimental evaluation of the corrosion influence on the cyclic behaviour of RC columns[J].Engineering Structures,2014,76:112-123.
[7]叶志文,张伟平,顾祥林.海洋大气环境下钢筋混凝土梁的时变性能[J].建筑结构学报,2019,40(1):74-81.
YE Zhiwen,ZHANG Weiping,GU Xianglin.Time-dependent behavior of RC beams under marine atmospheric environment[J].Journal of Building Structures,2019,40(1):74-81.
[8]张 猛,李瑶亮,赵桂峰,等.锈蚀钢筋混凝土框架结构抗震性能Pushover分析[J].工程抗震与加固改造,2016,38(3):35-42.
ZHANG Meng,LI Yaoliang,ZHAO Guifeng,et al.Seismic performance analysis of corroded reinforce concrete frame structures using pushover[J].Earthquake Resistant Engineering and Retrofitting,2016,38(3):35-42.
[9]DIZAJ E A,MADANDOUST R,KASHANI M M.Probabilistic seismic vulnerability analysis of corroded reinforced concrete frames including spatial variability of pitting corrosion[J].Soil Dynamics and Earthquake Engineering,2018,114:97-112.
[10]代旷宇,于晓辉,李雨适,等.锈蚀钢筋混凝土结构地震易损性分析[J].建筑结构学报,2022,43(8):20-31.
DAI Kuangyu,YU Xiaohui,LI Yushi,et al.Seismic fragility analysis of reinforced concrete structures considering reinforcement corrosion[J].Journal of Building Structures,2022,43(8):20-31.
[11]于晓辉.钢筋混凝土框架结构的概率地震易损性与风险分析[D] 哈尔滨:哈尔滨工业大学,2012.
YU Xiaohui.Probabilistic seismic fragility and risk analysis of reinforced concrete frame structures[D].Harbin:Harbin Institute of Technology,2012.
[12]ELLINGWOOD B R,KINALI K.Quantifying and communicating uncertainty in seismic risk assessment[J].Structural Safety,2009,31(2):179-187.
[13]FEMA.Recommended seismic design criteria for new steel moment-frame buildings[R].Washington DC:Federal Emergency Management Agency,2000.
[14]BRADLEY B A,DHAKAL R P,CUBRINOVSKI M,et al.Improved seismic hazard model with application to probabilistic seismic demand analysis[J].Earthquake Engineering & Structural Dynamics,2007,36(14):2211-2225.
[15]吴 庆.基于钢筋锈蚀的混凝土构件性能退化预计模型[M].徐州:中国矿业大学出版社,2009.
WU Qing.Prediction model of performance degradation of concrete members based on steel corrosion[M].Xuzhou:China University of Mining & Technology Press,2009.
[16]卢 峰,刁 波.混凝土碳化及钢筋锈蚀预测模型对比验证[J].混凝土,2009(1):36-39,42.
LU Feng,DIAO Bo.Contrast and verification of the concrete carbonation model and rebar corrosion model[J].Concrete,2009(1):36-39,42.
[17]CORONELLI D,GAMBAROVA P.Structural assessment of corroded reinforced concrete beams:modeling guidelines[J].Journal of Structural Engineering,2004,130(8):1214-1224.
[18]PANTAZOPOULOU S J,PAPOULIA K D.Modeling cover-cracking due to reinforcement corrosion in RC structures[J].Journal of Engineering Mechanics,2001,127(4):342-351.
[19]建筑抗震设计规范:GB 50011—2010[S].北京:中国建筑工业出版社,2010.
Code for seismic design of buildings:GB 50011—2010[S].Beijing:China Architecture & Building Press,2010.
[20]混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
Code for design of concrete structures:GB 50010—2010[S].Beijing:China Architecture & Building Press,2011.
[21]刘德辉.基于有效惯性矩的预应力混凝土梁的挠度计算[J].山西建筑,2008,34(35):81-82.
LIU Dehui.Deflection calculation on prestressed concrete beams based on effective inertia[J].Shanxi Architecture,2008,34(35):81-82.
[22]黄 超,梁兴文.FRC框架结构地震风险评估的简化方法[J].工程力学,2017,34(7):117-125.
HUANG Chao,LIANG Xingwen.A simplified method for evaluating the seismic risk of FRC frame structures[J].Engineering Mechanics,2017,34(7):117-125.
[23]FEMA.HAZUS-MH technical manual[M].Washington DC:Federal Emergency Management Agency,2003.
[24]FEMA.Recommended seismic design and criteria for new steel moment-frame building[R].Washington DC:Federal Emergency Management Agency,2000.
[25]邓夕胜,林嘉聪,蒋红雨,等.不同底部层高的RC框架结构地震易损性分析[J].地震工程与工程振动,2021,41(3):115-123.
DENG Xisheng,LIN Jiacong,JIANG Hongyu,et al.Seismic vulnerability analysis of RC frame structures with different bottom heights[J].Earthquake Engineering and Engineering Dynamics,2021,41(3):115-123.

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Last Update: 2024-09-30