GFRP加固带壁柱砖墙抗剪面积的简化计算
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摘要
通过1片未加固带壁柱砖墙和9片玻璃纤维增强复合材料(GFRP)加固带壁柱砖墙的抗震性能试验,分析带壁柱墙体中壁柱对墙体抗剪承载力的影响,并提出壁柱影响系数.从等效抗侧移刚度入手,推导出壁柱影响系数最大值的计算表达式;运用壁柱隔离法,推导出壁柱影响系数的最小值计算表达式,并结合壁柱的开洞损伤情况,给出壁柱影响系数的统一表达式,从而简化了计算.最后,通过试验验证该系数提出的合理性.
Based on the seismic performance experiments on one brick masonry wall with ordinary pilaster and eight masonry walls with pilaster strengthened with glass fiber reinforced polymer(GFRP),the influence of pilaster in brick masonry wall on shear capacity is investigated.Through the factor analysis of shear capacity,interaction coefficient of pilaster is obtained.According to the equivalent lateral rigidity,the expression to calculate the maximum of interaction coefficient of pilaster is presented,and by means of "segregated pilaster from the main wall",the expression to calculate the minimum of the coefficient is also presented.Considering the damage of interaction coefficient of pilaster,the uniform expression to calculate the coefficient is presented,which simplifies the calculation.The validity and rationality of interaction coefficient of pilaster are examined by experiments.
Based on the seismic performance experiments on one brick masonry wall with ordinary pilaster and eight masonry walls with pilaster strengthened with glass fiber reinforced polymer(GFRP),the influence of pilaster in brick masonry wall on shear capacity is investigated.Through the factor analysis of shear capacity,interaction coefficient of pilaster is obtained.According to the equivalent lateral rigidity,the expression to calculate the maximum of interaction coefficient of pilaster is presented,and by means of "segregated pilaster from the main wall",the expression to calculate the minimum of the coefficient is also presented.Considering the damage of interaction coefficient of pilaster,the uniform expression to calculate the coefficient is presented,which simplifies the calculation.The validity and rationality of interaction coefficient of pilaster are examined by experiments.
引文
[1]朱伯龙,吴明舜,蒋志贤.在周期荷载作用下砖砌体基本性能的试验研究[J].同济大学学报:自然科学版,1980(2):1-14.
[2]阎开发.KP1型承重粘土空心砖墙片抗震性能试验研究[J].四川建筑科学研究,1985(1):34-40.
[3]梁建国,李卫,陈行之.烧结页岩粉煤灰砖砌体与墙片的抗剪性能[J].四川建筑科学研究,1993(1):33-42.
[4]候汝欣,梁爽.粉煤灰砖墙片抗震性能的研究[J].四川建筑科学研究,1993(3):26-32.
[5]翁大根,吕西林,任晓崧,等.砖砌体墙片抗震修复与加固伪静力试验[J].世界地震工程,2003,19(3):1-8.
[6]MOGHADDAM H A.Lateral load behavior of masonry infilled steel frames with repair and retrofit[J].Journal ofStructural Engineering,2004(1):56-63.
[7]李浩菊.碳纤维布增强混凝土小型空心砌块砌体抗震能力的试验研究[D].天津:天津大学,2001:12.
[8]林磊,叶列平.GFRP布加固砌体墙的试验研究[C]∥第二届全国土木建筑工程用纤维增强复合材料应用技术学术交流会.北京:清华大学出版社,2002:215-223.
[9]张顺祥,管克俭,张开溶,等.碳纤维布加固砌体结构试验研究[C]∥第二届全国土木建筑工程用纤维增强复合材料应用技术学术交流会.北京:清华大学出版社,2002:210-214.
[10]阮积敏.普通玻璃纤维布加固多孔砖砌体的试验研究[D].杭州:浙江大学,2003:1-46.
[11]夏春红,王博.玻璃纤维布加固空心砖砌体抗震性能试验研究[C]∥第三届全国FRP学术交流会议.南京:东南大学出版社,2004:283-286.
[12]王博,夏春红.纤维布加固砖砌体抗弯试验研究[C]∥第三届全国FRP学术交流会议.南京:东南大学出版社,2004:287-289.
[13]张晨军.碳纤维布增强砖砌体抗震能力的试验研究[D].天津:天津大学,2000:12.
[14]温利明.芳纶纤维加固砖砌体的抗震性能试验研究[D].泉州:华侨大学,2003:10-11.
[15]CECCHI A,MILANI G,TRALLI A.In-plane loaded CFRP reinforced masonry walls:Mechanical characteristicsby homogenisation procedures[J].Composites Science and Technology,2004(64):2097-2112.
[16]刘迪.GFRP加固带壁柱砖墙抗剪性能试验研究[D].泉州:华侨大学,2005:6.
[17]孙恒军.配筋砌体基本力学性能及其墙片抗震性能的试验研究[D].上海:同济大学,2001:40-52.
[18]陈国兴,陈忠汉,马克俭.工程结构抗震设计原理[M].北京:中国水利水电出版社,2002:171-173.
[2]阎开发.KP1型承重粘土空心砖墙片抗震性能试验研究[J].四川建筑科学研究,1985(1):34-40.
[3]梁建国,李卫,陈行之.烧结页岩粉煤灰砖砌体与墙片的抗剪性能[J].四川建筑科学研究,1993(1):33-42.
[4]候汝欣,梁爽.粉煤灰砖墙片抗震性能的研究[J].四川建筑科学研究,1993(3):26-32.
[5]翁大根,吕西林,任晓崧,等.砖砌体墙片抗震修复与加固伪静力试验[J].世界地震工程,2003,19(3):1-8.
[6]MOGHADDAM H A.Lateral load behavior of masonry infilled steel frames with repair and retrofit[J].Journal ofStructural Engineering,2004(1):56-63.
[7]李浩菊.碳纤维布增强混凝土小型空心砌块砌体抗震能力的试验研究[D].天津:天津大学,2001:12.
[8]林磊,叶列平.GFRP布加固砌体墙的试验研究[C]∥第二届全国土木建筑工程用纤维增强复合材料应用技术学术交流会.北京:清华大学出版社,2002:215-223.
[9]张顺祥,管克俭,张开溶,等.碳纤维布加固砌体结构试验研究[C]∥第二届全国土木建筑工程用纤维增强复合材料应用技术学术交流会.北京:清华大学出版社,2002:210-214.
[10]阮积敏.普通玻璃纤维布加固多孔砖砌体的试验研究[D].杭州:浙江大学,2003:1-46.
[11]夏春红,王博.玻璃纤维布加固空心砖砌体抗震性能试验研究[C]∥第三届全国FRP学术交流会议.南京:东南大学出版社,2004:283-286.
[12]王博,夏春红.纤维布加固砖砌体抗弯试验研究[C]∥第三届全国FRP学术交流会议.南京:东南大学出版社,2004:287-289.
[13]张晨军.碳纤维布增强砖砌体抗震能力的试验研究[D].天津:天津大学,2000:12.
[14]温利明.芳纶纤维加固砖砌体的抗震性能试验研究[D].泉州:华侨大学,2003:10-11.
[15]CECCHI A,MILANI G,TRALLI A.In-plane loaded CFRP reinforced masonry walls:Mechanical characteristicsby homogenisation procedures[J].Composites Science and Technology,2004(64):2097-2112.
[16]刘迪.GFRP加固带壁柱砖墙抗剪性能试验研究[D].泉州:华侨大学,2005:6.
[17]孙恒军.配筋砌体基本力学性能及其墙片抗震性能的试验研究[D].上海:同济大学,2001:40-52.
[18]陈国兴,陈忠汉,马克俭.工程结构抗震设计原理[M].北京:中国水利水电出版社,2002:171-173.
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