炭纤维布对开洞黏土砖墙抗震加固研究
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摘要
采用炭纤维布对开洞黏土砖墙试件进行抗震加固,通过伪静力试验对试件在低周往复荷载作用下的抗震性能进行研究,对比所得各项试验数据,分析炭纤维布加固对砖墙抗震性能的影响,并比较了不同试验方案的效果。在试验的基础上建立加固受力模型,提出了加固墙体抗震受剪承载力的计算公式。结果表明,炭纤维布加固可有效地改善砖墙抗震性能,受力模型可较好地反映加固墙体受力机理。
Several brick walls with an opening were strengthened by CFRP for anti-seismic purpose.Based on pseudo-static experiment,the anti-seismic behavior of the walls was studied.The strengthening effect of CFRP was analyzed and different strengthening methods were compared.Finally,the mechanical model of the strengthened wall was established,and the simplified formula for calculating anti-seismic shear capacity of brick wall strengthened by CFRP was presented,too.The study indicates that the anti-seismic behavior of the walls have been improved effectively by CFRP attached to them,and the simple calculating model presented in the paper accords with the actual working state of the brick wall strengthened by CFRP.
Several brick walls with an opening were strengthened by CFRP for anti-seismic purpose.Based on pseudo-static experiment,the anti-seismic behavior of the walls was studied.The strengthening effect of CFRP was analyzed and different strengthening methods were compared.Finally,the mechanical model of the strengthened wall was established,and the simplified formula for calculating anti-seismic shear capacity of brick wall strengthened by CFRP was presented,too.The study indicates that the anti-seismic behavior of the walls have been improved effectively by CFRP attached to them,and the simple calculating model presented in the paper accords with the actual working state of the brick wall strengthened by CFRP.
引文
[1]符晶华,符蓉,阮班席,等.复杂建筑结构加固及其检测方法研究[J].武汉科技大学学报:自然科学版,2006,29(6):640-644.
[2]赵彤,张晨军,谢剑,等.碳纤维布用于砖砌体抗震加固的试验研究[J].地震工程与震动控制,2001,21(2):89-95.
[3]张祥顺,谷倩,管克俭,等.碳纤维布加固砌体结构试验研究[J].武汉理工大学学报,2002,24(11):29-32.
[4]杨2,杨智,田水.炭纤维布加固黏土砖柱的试验研究[J].武汉科技大学学报,2009,32(2):209-212.
[5]JGJ 101-96,建筑抗震实验方法规程[S].
[6]GB 50003-2001,砌体结构设计规范[S].
[7]朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1991.
[8]GB 50011-2001,建筑抗震设计规范[S].
[9]CECS 146-2003,碳纤维片材加固混凝土结构技术规程[S].
[10]洪峰,王绍博.砌体结构抗震抗剪强度分析[J].地震工程与工程振动,2000,20(3):28-33.
[2]赵彤,张晨军,谢剑,等.碳纤维布用于砖砌体抗震加固的试验研究[J].地震工程与震动控制,2001,21(2):89-95.
[3]张祥顺,谷倩,管克俭,等.碳纤维布加固砌体结构试验研究[J].武汉理工大学学报,2002,24(11):29-32.
[4]杨2,杨智,田水.炭纤维布加固黏土砖柱的试验研究[J].武汉科技大学学报,2009,32(2):209-212.
[5]JGJ 101-96,建筑抗震实验方法规程[S].
[6]GB 50003-2001,砌体结构设计规范[S].
[7]朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1991.
[8]GB 50011-2001,建筑抗震设计规范[S].
[9]CECS 146-2003,碳纤维片材加固混凝土结构技术规程[S].
[10]洪峰,王绍博.砌体结构抗震抗剪强度分析[J].地震工程与工程振动,2000,20(3):28-33.
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