无浆填充墙框架拟静力试验研究
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摘要
为提高填充墙框架结构整体耗能能力,同时降低由填充墙引起的"刚度效应",提出了新型的无浆填充墙框架结构并进行了材性及拟静力试验。在材性试验中得到了无浆和有浆砌块抗压及通缝抗剪强度和钢筋混凝土的材料特性;在拟静力试验中将无浆及有浆填充墙框架与相应的钢筋混凝土纯框架对比得到了不同填充墙形式下框架结构的破坏过程及形态、结构滞回曲线,分析了新型无浆填充墙框架的受力机理。研结果究表明:无浆填充墙在框架弹性工作状态下耗能良好,并且对框架结构附加刚度很小,该结构形式抗震性能良好。
In order to improve the energy dissipation of the masonry in-filled frame structure,while decreasing the stiffening and strengthening effect of the infilling panels,a novel dry-stack masonry in-filled frame was proposed and a series of tests were performed.After evaluating the material parameters of both the masonry panel and frame experimentally,quasi static tests were carried on the dry stack masonry in-filled frame.By comparing the results with the bare frame and mortar in-filled frame,the damage development,failure modes,hysteretic behavior and the response mechanisms were studied.It is concluded that significant energy dissipation in the dry-stack in-filled frame can be obtained while keeping the frame under the elastic stage;the frame stiffening and strengthening effect of the dry-stack in-fill panel is not significant.
In order to improve the energy dissipation of the masonry in-filled frame structure,while decreasing the stiffening and strengthening effect of the infilling panels,a novel dry-stack masonry in-filled frame was proposed and a series of tests were performed.After evaluating the material parameters of both the masonry panel and frame experimentally,quasi static tests were carried on the dry stack masonry in-filled frame.By comparing the results with the bare frame and mortar in-filled frame,the damage development,failure modes,hysteretic behavior and the response mechanisms were studied.It is concluded that significant energy dissipation in the dry-stack in-filled frame can be obtained while keeping the frame under the elastic stage;the frame stiffening and strengthening effect of the dry-stack in-fill panel is not significant.
引文
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[15]GB50011—2010建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2010.(GB50011—2010Code for seismic design of build ings[S].Beijing:China Architecture&Building Press,2010.(inChinese))
[2]清华大学、西南交通大学、北京交通大学土木工程结构专家组.汶川地震建筑震害分析[J].建筑结构学报,2008,29(4):1-9.(Civil and Structural Groups ofTsinghua University,Xinan Jiaotong University andBeijing Jiaotong University.Analysis on buildingseismic damage in Wenchuan earthquake[J].Journalof Building Structures,2008,29(4):1-9.(inChinese))
[3]叶列平,陆新征,赵世春,等.框架结构抗地震倒塌能力的研究-汶川地震极震区几个框架结构震害案例分析[J].建筑结构学报,2009,30(6):67-76.(YE Lieping,LU Xinzheng,ZHAO Shichun,et al.Seismic collapse resistance of RC frame structures:casestudies on seismic damages of several RC framestructures under extreme ground motion in WenchuanEarthquake[J].Journal of Building Structures,2009,30(6):67-76.(in Chinese))
[4]Negro P,Verzeletti G.Effect of infills on the globalbehaviour of R/C frames:energy considerations frompseudodynamic tests[J].Earthquake Engineering&Structural Dynamics,1996,25(8):753-773.
[5]瞿伟廉,盛克苏,李肇胤.设置耗能横缝的填充墙对多层框架地震反应的控制[J].建筑结构学报,1991,12(2):42-50.(QU Weilian,SHENG Kesu,LIZhaoyin.Control of earthquake responses of multistoryframe structures by filler wall with horizontal energydissipation slit[J].Journal of Building Structures,1991,12(2):42-50.(in Chinese))
[6]郑七振,杨峰亮,彭斌,等.碳纤维布加固混凝土框架非线性分析[J].建筑结构学报,2008,29(增刊1):142-145.(ZHENG Qizhen,YANG Fengliang,PENG Bin,et al.Nonlinear analysis for carbon fibersheets reinforced concrete frame[J].Journal ofBuilding Structures,2008,29(Suppl.1):142-145.(in Chinese))
[7]李宏男,李钢,李中军,等.钢筋混凝土框架结构利用“双功能”软钢阻尼器的抗震设计[J].建筑结构学报,2007,28(4):36-43.(LI Hongnan,LI Gang,LI Zhongjun,et al.Earhquake-resistent design ofreinforced concrete frame with metallic dampers of dualfunctions[J].Journal of Building Structures,2007,28(4):36-43.(in Chinese))
[8]Balsamo A,Colombo A,Manfredi G,et al.Seismicbehavior of a full-scale RC frame repaired using CFRPlaminates[J].Engineering Structures,2005,27(5):769-780.
[9]Lourenco P B,Oliveira D V,Roca P,et al.Dry jointstone masonry walls subjected to in-plane combinedloading[J].Journal of Structural Engineering,2005,131(11):1665-1673.
[10]Uzoegbo H C,Senthivel R,Ngowi J V.Loadingcapacity of dry-stack masonry walls[J].The MasonrySociety Journal,2007,25(1):41-52.
[11]Yamaguchi K,Matsufuji Y,Koyama T.A newstructural system:friction-resistant dry-masonry[J].Building Research&Information,2007,35(6):616-628.
[12]prEN 1052-3 Methods of test for masonry[S].Brussels:European Committee for standardization,2002.
[13]中国建筑标准设计研究院.国家建筑标准设计图集-建筑结构设计常用数据[M].北京:中国计划出版社,2007.
[14]Al-Chaar G,Mehrabi A B,Teymour M.Finite elementinterface modeling and experimental verification ofmasonry-infilled R/C frames[J].The Masonry SocietyJournal,2008,26(1):47-65.
[15]GB50011—2010建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2010.(GB50011—2010Code for seismic design of build ings[S].Beijing:China Architecture&Building Press,2010.(inChinese))
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