[1]林燕卿,徐玉野,杨清文,等.火灾后混凝土短柱的滞回性能和损伤评定[J].华侨大学学报(自然科学版),2013,34(5):563-569.[doi:10.11830/ISSN.1000-5013.2013.05.0563]
　LIN Yan-qing,XU Yu-ye,YANG Qing-wen,et al.Hysteretic Behaviors and Damage Assessment of Concrete Short Columns after Fire[J].Journal of Huaqiao University(Natural Science),2013,34(5):563-569.[doi:10.11830/ISSN.1000-5013.2013.05.0563]
点击复制

火灾后混凝土短柱的滞回性能和损伤评定()
分享到：

《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第5期
页码:
563-569
栏目:
出版日期:
2013-09-20

文章信息/Info

Title:
Hysteretic Behaviors and Damage Assessment of Concrete Short Columns after Fire
文章编号:
1000-5013(2013)05-0563-07
作者:
林燕卿;  徐玉野;  杨清文;  罗漪
华侨大学 土木工程学院, 福建 厦门 361021
Author(s):
LIN Yan-qing;  XU Yu-ye;  YANG Qing-wen;  LUO Yi
College of Civil Engineering, Huaqiao University, Xiamen 361021, China
关键词:
钢筋混凝土;  短柱;  火灾;  滞回耗能;  强度退化;  损伤评价
Keywords:
reinforced concrete;  short column;  fire;  hysteretic dissipated energy;  strength degradation;  damage assessment
分类号:
TU375.3
DOI:
10.11830/ISSN.1000-5013.2013.05.0563
文献标志码:
A
摘要:
基于7根明火加热后钢筋混凝土短柱和1根未受火的对比试件的拟静力试验结果,分析受火时间、轴压比和剪跨比对火灾后钢筋混凝土短柱滞回性能的影响情况.结合强度退化分析各试件的损伤发展过程,采用Park损伤模型对受火后短柱和未受火的对比试件的抗震性能进行损伤评定,提出一种能反映火灾高温对柱式构件抗震性能损伤影响加大的评价指标.研究结果表明:火灾后钢筋混凝土短柱在低周往复荷载作用下的滞回曲线和滞回规则与未受火对比件的相似,但受火后滞回环的稳定性较未受火的差;钢筋混凝土短柱的累积滞回耗能随着受火时间的增加,轴压比的减小,以及剪跨比的减小而减小;同一位移角下的强度退化随着受火时间的增加,轴压比的增大,以及剪跨比的增大而加快.此外,Park损伤评价模型对受火前后钢筋混凝土短柱的抗震性能损伤指数均存在超前估计的不足.
Abstract:
Based on the pseudo-static test data of seven reinforced concrete(RC)short columns after fire and one contrastive unfired specimen, the effects of fire exposure time, axial compressive ratio and shear span ratio on the hysteretic behaviors were analyzed. Combining strength degradation analysis which reflects the damage development process of the specimens, the Park’s damage model was adopted to assess the damage of aseismic behavior of specimens unfired and after fire. An assessment index of fire on aseismic performance damage was proposed. The results show that: the hysteretic curves and hysteretic rules of RC short columns after fire are similar to the column unfired, but the stability of RC short columns after fire is much poorer than the column unfired. The accumulated hysteretic dissipated energy of short columns decreases with increasing fire exposure time and with decreasing the axial compressive ratio and the shear span ratio. Under the same displacement angle, the strength degradation increases with increasing fire exposure time, the axial compressive ratio and the shear span ratio. There exist some disadvantages in Park’s damage model to estimate damage index of the aseismic behavior of reinforced concrete short columns before and after fire.

参考文献/References:

[1] 吴波.火灾后钢筋混凝土结构的力学性能[M].北京:科学出版社,2003:43,152.
[2] 牛向阳,王全凤,徐玉野,等.高温后HRB高强钢筋粘结锚固性能的试验研究[J].工业建筑,2010,40(9):84-87.
[3] 刘良林,王全凤,沈章春.HRB400级钢筋混凝土柱的滞回性能分析[J].华侨大学学报:自然科学版,2008,29(2):280-283.
[4] 刘良林,王全凤,林煌斌.地震损伤评价的累积滞回耗能计算[J].华侨大学学报:自然科学版,2011,32(5):565-568.
[5] PARK Y J,ANG A H S.Mechanistic seismic damage model for reinforced concrete [J].Journal of Structural Engineering,1985,111(4):722-739.
[6] 张家广,霍静思,肖岩.火灾全过程后钢筋混凝土柱滞回性能试验研究[C]//第18届全国结构工程学术会议论文集:第Ⅲ册.广州:[出版者不详],2009:288-292.
[7] 曾跃飞,张强.火灾后混凝土构件承载力损伤的数值分析与评估[J].广东土木与建筑,2008(4):52-54,47.
[8] 吴波,李惠,马忠诚.钢筋混凝土结构在火灾和低周反复荷载作用下的损伤分析[J].哈尔滨建筑大学学报,1997,30(3):7-12.
[9] 吴波,马忠诚,欧进萍.高温后钢筋混凝土柱抗震性能的试验研究[J].土木工程学报,1999,32(2):53-58.
[10] 杨清文.火灾后钢筋混凝土短柱的抗震性能研究[D].泉州:华侨大学,2011:9-72.
[11] 刘良林,王全凤,沈章春.基于损伤的累积滞回耗能与延性系数[J].地震,2008,28(4):13-19.
[12] 刘柏权,刘鸣.钢筋混凝土柱低周疲劳试验中的强度退化与刚度退化[J].工程力学,1997,14(增刊1):189-192.
[13] 中华人民共和国建设部.GB 500102012 建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.

相似文献/References:

[1]郭子雄,吕西林.高轴压比框架柱抗震性能试验研究[J].华侨大学学报(自然科学版),1999,20(3):258.[doi:10.11830/ISSN.1000-5013.1999.03.0258]
　Guo Zixiong,Lu Xilin.Antiseismic Performance Test of RC Framed Column with High Axial Compression Ratio[J].Journal of Huaqiao University(Natural Science),1999,20(5):258.[doi:10.11830/ISSN.1000-5013.1999.03.0258]
[2]苏世灼,戴秋莲.楼板裂缝问题浅析[J].华侨大学学报(自然科学版),2000,21(2):178.[doi:10.3969/j.issn.1000-5013.2000.02.017]
　Su Shizhuo,Dai Qiulian.An Analysis on the Crack of RC Floorslab[J].Journal of Huaqiao University(Natural Science),2000,21(5):178.[doi:10.3969/j.issn.1000-5013.2000.02.017]
[3]徐玉野,王全凤,柴振岭.钢筋混凝土柱火灾试验数值模拟的关键技术[J].华侨大学学报(自然科学版),2008,29(4):588.[doi:10.11830/ISSN.1000-5013.2008.04.0588]
　XU Yu-ye,WANG Quan-feng,CHAI Zhen-ling.Key Technologies of Numerical Simulation of Reinforced Concrete Columns in Fire Test[J].Journal of Huaqiao University(Natural Science),2008,29(5):588.[doi:10.11830/ISSN.1000-5013.2008.04.0588]
[4]何叶,徐玉野,林燕卿,等.钢筋混凝土异形柱抗扭性能的数值模拟[J].华侨大学学报(自然科学版),2012,33(4):429.[doi:10.11830/ISSN.1000-5013.2012.04.0429]
　HE Ye,XU Yu-ye,LIN Yan-qing,et al.Numerical Simulation of the Torsional Behavior for Reinforced Concrete Specially-Shaped Columns[J].Journal of Huaqiao University(Natural Science),2012,33(5):429.[doi:10.11830/ISSN.1000-5013.2012.04.0429]
[5]梁扬滨,曾志兴,陈荣淋,等.钢板笼混凝土短柱轴压性能的数值模拟[J].华侨大学学报(自然科学版),2014,35(1):88.[doi:10.11830/ISSN.1000-5013.2014.01.0088]
　LIANG Yang-bin,ZENG Zhi-xing,CHEN Rong-lin,et al.Numerical Simulation for Prefabricated Cage System of Concrete Short Colunmns[J].Journal of Huaqiao University(Natural Science),2014,35(5):88.[doi:10.11830/ISSN.1000-5013.2014.01.0088]
[6]陈香蓉,霍静思,王卫华,等.钢筋混凝土锈蚀开裂的有限元分析方法[J].华侨大学学报(自然科学版),2022,43(1):36.[doi:10.11830/ISSN.1000-5013.202102017]
　CHEN Xiangrong,HUO Jingsi,WANG Weihua,et al.Finite Element Analysis for Corrosion and Cracking in Reinforced Concrete[J].Journal of Huaqiao University(Natural Science),2022,43(5):36.[doi:10.11830/ISSN.1000-5013.202102017]
[7]叶勇,邓江聪,彭译琳,等.不锈钢管约束混凝土短柱轴压性能试验[J].华侨大学学报(自然科学版),2019,40(4):476.[doi:10.11830/ISSN.1000-5013.201901029]
　YE Yong,DENG Jiangcong,PENG Yilin,et al.Experimental Study on Circular Stainless Steel Tube Confined Concrete Stub Columns Under Axial Compression[J].Journal of Huaqiao University(Natural Science),2019,40(5):476.[doi:10.11830/ISSN.1000-5013.201901029]
[8]林碧兰,李丹,徐玉野.三面受火后混凝土短柱受剪承载力的数值计算[J].华侨大学学报(自然科学版),2015,36(预先出版):0.
　LIN Bi-lan,LI Dan,XU Yu-ye.Numerical Calculation for the Shear Strength of Concrete Short Columns after Exposed to 3-Face Heating[J].Journal of Huaqiao University(Natural Science),2015,36(5):0.
[9]林碧兰,李丹,徐玉野.三面受火后混凝土短柱受剪承载力的数值计算[J].华侨大学学报(自然科学版),2014,35(4):437.[doi:10.11830/ISSN.1000-5013.2014.04.0437]
　LIN Bi-lan,LI Dan,XU Yu-ye.Numerical Calculation for the Shear Strength of Concrete Short Columns after 3-Face Heating[J].Journal of Huaqiao University(Natural Science),2014,35(5):437.[doi:10.11830/ISSN.1000-5013.2014.04.0437]

备注/Memo

备注/Memo:
收稿日期: 2012-12-27
通信作者: 徐玉野(1978-),男,副教授,主要从事结构抗火研究.E-mail:yuyexu@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(50908091); 福建省自然科学基金资助项目(2012J01221); 福建省泉州市技术研究与开发重点项目(2011Z10, 2011Z12); 中央高校基本科研业务费专项基金资助项目(JB-SJ1011)
更新日期/Last Update: 2013-09-20