加气混凝土砌块置换加固受损密肋复合墙抗震性能试验研究
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摘要
针对密肋复合墙的构造特点及在地震作用下"砌块-框格-外框"的破坏顺序,提出利用加气混凝土砌块置换墙体中破坏的砌块以恢复和提高受损密肋复合墙结构抗震性能的加固方法。对加固后的密肋复合墙进行了低周反复荷载试验,分析了墙体破坏过程和钢筋应变状况,重点研究了加固后复合墙的滞回曲线特点及承载力、刚度、延性等抗震性能,并与空框格框架、标准密肋复合墙进行了对比分析。试验结果表明,加固后复合墙的破坏特点、裂缝形成和分布规律与标准复合墙相似,主要抗震性能指标均接近或基本等同于标准复合墙;采用加气混凝土砌块(或其它满足设计强度要求的轻质砌块)置换加固受损密肋复合墙的方案是可行的。利用砌块置换加固受损密肋结构的方法效果明显、施工简便、经济实用,可为今后地震灾区密肋结构的抗震加固提供借鉴。
Based on the construction feature and "block-frame-outer frame" failure characteristics of the multi-ribbed composite wall,the strengthen method for damaged multi-ribbed composite wall with aerated concrete blocks to recovery and enhance the seismic performance of the structure was proposed.Through cyclic loading tests on strengthen composite wall,the failure process and steel bars strain were analyzed,and the hysteretic curve character and seismic performance such as bearing capacity,stiffness,ductility and so on were researched mainly.Test results showed that the failure and cracks distribution characters of the strengthen composite wall were similar to the standard wall,and the main seismic performance index was close to or equal to the standard wall.It was effective using aerated concrete blocks(or other blocks with a certain strength) to strengthen the damaged composite wall.The strengthen method is effective,convenient and cost cheap,and provides reference to strength the multi-ribbed composite wall structure in earthquake area.
Based on the construction feature and "block-frame-outer frame" failure characteristics of the multi-ribbed composite wall,the strengthen method for damaged multi-ribbed composite wall with aerated concrete blocks to recovery and enhance the seismic performance of the structure was proposed.Through cyclic loading tests on strengthen composite wall,the failure process and steel bars strain were analyzed,and the hysteretic curve character and seismic performance such as bearing capacity,stiffness,ductility and so on were researched mainly.Test results showed that the failure and cracks distribution characters of the strengthen composite wall were similar to the standard wall,and the main seismic performance index was close to or equal to the standard wall.It was effective using aerated concrete blocks(or other blocks with a certain strength) to strengthen the damaged composite wall.The strengthen method is effective,convenient and cost cheap,and provides reference to strength the multi-ribbed composite wall structure in earthquake area.
引文
[1]Guo Zixiong,Wu Yibin,Huang Qunxian.Research and de-velopment in seismic behavior of infilled-frame structures[J].Earthquake Engineering and Engineering Vibration,2008,28(6):172-177.[郭子雄,吴毅彬,黄群贤.砌体填充墙框架结构抗震性能研究现状与展望[J].地震工程与工程振动,2008,28(6):172-177.]
[2]Chaker A A,Cherifati A.Influence of masonry infill panelson the vibration and stiffness characteristics of RC framebuildings[J].Earthquake Engineering and Structural Dy-namics,1999,28(10):1 061-1 065.
[3]Ghassan A C,Mohsen L,Steve S.Behavior of masonry in-filled nonductile reinforced concrete frames[J].ACI Struc-ture Journal,2002,136(4):347-356.
[4]Jiang Lixue,Zheng Qiaowen.Tests of seismic behavior of rein-forced concrete frames with infilled wall or strengthened in-filled wall[J].Industrial Construction,2009,39(10):40-47.[蒋利学,郑乔文.砖填充墙加固前后钢筋混凝土框架抗震性能试验[J].工业建筑,2009,39(10):40-47.]
[5]Lu Jianguo.Reinforcement of a frame building by using fill-wall of clay solid bricks[J].Journal of Fuzhou University,2001,29(5):85-88.[卢建国.框架房屋利用粘土实心砖填充墙进行加固处理[J].福州大学学报,2001,29(5):85-88.]
[6]Chen Keng.Application and discussion about the framestructure strengthened with reinforced masonry shear wall[J].Fujian Construction Technology,2000(3):8-9.[陈铿.配筋砌体剪力墙在某框架结构加固中的应用与探讨[J].福建建设科技,2000(3):8-9.]
[7]Zhang Yin,Yao Qianfeng,Ding Yonggang.Study on energy-saving residential building structures of multi-ribbed com-posite walls with high performance concrete[C]//Proceed-ing of the International Symposium on Environmental Ecolo-gy and Technology Concrete.Uetikon-Zuerich:Trans TechPublications Ltd,2005.
[8]Huang Wei,Tang Qiang,Zhang Yin,et al.Post-earthquakereconstruction application of multi-ribbed ecological compos-ite wall structure in Wenchuan area[C]//Proceedings ofConference on Earthquake Engineering and Earthquake Dis-aster Reduction—the 1th Anniversary of Wenchuan Earth-quake.2009:743-748.[黄炜,唐强,张荫,等.密肋生态复合墙结构在汶川地震灾后重建中的应用[C]//汶川地震一周年地震工程与减轻地震灾害研讨会论文集.2009:743-748.]
[9]Yao Qianfeng,Guo Meng,Xia Lei.Apply research of high-rise frame structure stabilized by multi-ribbed composite wall[C]//Proceedings of Conference on Earthquake Engineeringand Earthquake Disaster Reduction—the 1th Anniversary ofWenchuan Earthquake.2009:682-686.[姚谦峰,郭猛,夏雷.密肋耗能墙在高层框架抗震加固中的应用研究[C]//汶川地震一周年地震工程与减轻地震灾害研讨会论文集.2009:682-686.]
[10]Beijing Jiaotong University.Design theory and key technol-ogy research of multi-ribbed composite wall structure withmultiple seismic fortification lines[R].Beijing:Beijing Jiao-tong University,2009.[北京交通大学.具有多道抗震防线的耗能复合墙结构设计理论与关键技术研究[R].北京:北京交通大学,2009.]
[11]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
[12]中华人民共和国建设部.GB50011—2001建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2008.
[2]Chaker A A,Cherifati A.Influence of masonry infill panelson the vibration and stiffness characteristics of RC framebuildings[J].Earthquake Engineering and Structural Dy-namics,1999,28(10):1 061-1 065.
[3]Ghassan A C,Mohsen L,Steve S.Behavior of masonry in-filled nonductile reinforced concrete frames[J].ACI Struc-ture Journal,2002,136(4):347-356.
[4]Jiang Lixue,Zheng Qiaowen.Tests of seismic behavior of rein-forced concrete frames with infilled wall or strengthened in-filled wall[J].Industrial Construction,2009,39(10):40-47.[蒋利学,郑乔文.砖填充墙加固前后钢筋混凝土框架抗震性能试验[J].工业建筑,2009,39(10):40-47.]
[5]Lu Jianguo.Reinforcement of a frame building by using fill-wall of clay solid bricks[J].Journal of Fuzhou University,2001,29(5):85-88.[卢建国.框架房屋利用粘土实心砖填充墙进行加固处理[J].福州大学学报,2001,29(5):85-88.]
[6]Chen Keng.Application and discussion about the framestructure strengthened with reinforced masonry shear wall[J].Fujian Construction Technology,2000(3):8-9.[陈铿.配筋砌体剪力墙在某框架结构加固中的应用与探讨[J].福建建设科技,2000(3):8-9.]
[7]Zhang Yin,Yao Qianfeng,Ding Yonggang.Study on energy-saving residential building structures of multi-ribbed com-posite walls with high performance concrete[C]//Proceed-ing of the International Symposium on Environmental Ecolo-gy and Technology Concrete.Uetikon-Zuerich:Trans TechPublications Ltd,2005.
[8]Huang Wei,Tang Qiang,Zhang Yin,et al.Post-earthquakereconstruction application of multi-ribbed ecological compos-ite wall structure in Wenchuan area[C]//Proceedings ofConference on Earthquake Engineering and Earthquake Dis-aster Reduction—the 1th Anniversary of Wenchuan Earth-quake.2009:743-748.[黄炜,唐强,张荫,等.密肋生态复合墙结构在汶川地震灾后重建中的应用[C]//汶川地震一周年地震工程与减轻地震灾害研讨会论文集.2009:743-748.]
[9]Yao Qianfeng,Guo Meng,Xia Lei.Apply research of high-rise frame structure stabilized by multi-ribbed composite wall[C]//Proceedings of Conference on Earthquake Engineeringand Earthquake Disaster Reduction—the 1th Anniversary ofWenchuan Earthquake.2009:682-686.[姚谦峰,郭猛,夏雷.密肋耗能墙在高层框架抗震加固中的应用研究[C]//汶川地震一周年地震工程与减轻地震灾害研讨会论文集.2009:682-686.]
[10]Beijing Jiaotong University.Design theory and key technol-ogy research of multi-ribbed composite wall structure withmultiple seismic fortification lines[R].Beijing:Beijing Jiao-tong University,2009.[北京交通大学.具有多道抗震防线的耗能复合墙结构设计理论与关键技术研究[R].北京:北京交通大学,2009.]
[11]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
[12]中华人民共和国建设部.GB50011—2001建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2008.
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