碳纤维布加固砖墙抗震受剪承载力分析
|
摘要
在对碳纤维布加固开洞砖墙模型进行往复荷载试验的基础上,对墙体加固后的抗震性能进行探讨分析,建立了碳纤维布加固砖墙的力学计算模型。结合相关国家规范中砌体抗震承载力计算公式,提出碳纤维布抗震加固后墙体抗震受剪承载力的简化计算公式,并与试验结果进行比较,计算结果与试验结果吻合较好,表明该计算模型能较好地反映碳纤维布与开洞砖墙共同工作的受力机理。
Based on the experiment of several brick walls with a door strengthened by carbon fiber sheet under cyclic loading,the seismic capability of these strengthened walls were analyzed,by which the mechanics-calculating model of the strengthened wall was established.Combined with the formulas of the seismic shear capacity of the masonry structure in the corresponding national codes,the simplified calculating formula for the seismic shear capacity of brick wall strengthened by CFRP was presented here.Comparing with the experimental values of the ultimate horizontal load,it demonstrated that this simple calculating model for CFRP strengthened masonry wall accords with the actual working state of the masonry wall together with CFRP.
Based on the experiment of several brick walls with a door strengthened by carbon fiber sheet under cyclic loading,the seismic capability of these strengthened walls were analyzed,by which the mechanics-calculating model of the strengthened wall was established.Combined with the formulas of the seismic shear capacity of the masonry structure in the corresponding national codes,the simplified calculating formula for the seismic shear capacity of brick wall strengthened by CFRP was presented here.Comparing with the experimental values of the ultimate horizontal load,it demonstrated that this simple calculating model for CFRP strengthened masonry wall accords with the actual working state of the masonry wall together with CFRP.
引文
[1]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.
[2]张祥顺.碳纤维布加固砌体结构试验研究[D].武汉:武汉理工大学,2000.
[3]朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1991.
[4]骆万康,朱希诚,廖春盛.砌体抗剪强度研究的回顾与新的计算方法[J].重庆建筑大学学报,1995,17(4):41-49.
[5]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.
[6]杨明空,谷倩,彭少民.碳纤维布加固带门洞砌体墙片试验研究[J].武汉理工大学学报,2005,27(9):70-73.
[7]CECS 146:2003,碳纤维片材加固混凝土结构技术规程[S].北京:中国计划出版社,2003.
[8]GB50011—2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[9]GB50003—2001,砌体结构设计规范[S].北京:中国建筑工业出版社,2001.
[2]张祥顺.碳纤维布加固砌体结构试验研究[D].武汉:武汉理工大学,2000.
[3]朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1991.
[4]骆万康,朱希诚,廖春盛.砌体抗剪强度研究的回顾与新的计算方法[J].重庆建筑大学学报,1995,17(4):41-49.
[5]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.
[6]杨明空,谷倩,彭少民.碳纤维布加固带门洞砌体墙片试验研究[J].武汉理工大学学报,2005,27(9):70-73.
[7]CECS 146:2003,碳纤维片材加固混凝土结构技术规程[S].北京:中国计划出版社,2003.
[8]GB50011—2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[9]GB50003—2001,砌体结构设计规范[S].北京:中国建筑工业出版社,2001.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心