喷涂轻质复合砂浆—密布原竹组合墙体抗震性能试验研究
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摘要
提出一种在密布原竹骨架外喷涂轻质复合砂浆的组合墙体.对喷涂轻质复合砂浆—密布原竹组合墙体试件进行低周反复加载试验,分析试件的受力过程和破坏模式,对试件的承载能力、抗侧刚度、延性、承载力退化、刚度退化以及耗能性能等力学特征进行研究,并将试验结果与压型钢板—竹胶板组合墙体、喷涂保温材料—原竹骨架组合墙体的试验数据进行对比分析.试验结果表明:喷涂轻质复合砂浆—密布原竹组合墙体的主要破坏模式为抗拔件被拉出,墙体底部发生破坏.当试件处于极限状态时,组合墙体出现裂缝,但试件整体结构较为完好.喷涂轻质复合砂浆—密布原竹组合墙体的延性和耗能能力较好,且具有较高的抗剪承载力和初始抗侧刚度.与压型钢板—竹胶板组合墙体相比,喷涂轻质复合砂浆—密布原竹组合墙体具有更好的抗震性能和耗能能力.与喷涂保温材料—原竹骨架组合墙体相比,喷涂轻质复合砂浆—密布原竹组合墙体经济性好,同样具有较高的推广价值.
The covered bamboo framing wall with sprayed lightweight composite mortar that sprayed lightweight composite mortar is used outside the frame of the wall.Through tests of the covered bamboo framing wall with sprayed lightweight composite mortar under low reversed cyclic loading,the failure process and pattern were observed.The mechanical behaviors such as bearing capacity,lateral stiffness,ductility,strength degradation,stiffness degradation and energy dissipation capacity were analyzed.The experimental results of specimen presented in this paper were compared with the profiled steel sheet-bamboo plywood composite walls and bamboo framing wall with sprayed thermal insulation material.The results indicate that the main failure modes of wall are dragged out of resistance uplift piece and local failure at the bottom of the wall.Though the composite wall has some cracks in the limit state,the overall structure of the specimen is relatively intact.The composite wall has both good ductility and seismic behavior,and higher shear bearing capacity and initial lateral stiffness.Compared with profiled steel sheet-bamboo plywood composite walls,covered bamboo framing wall with sprayed lightweight composite mortar has better seismic behavior and energy dissipation capacity.The composite wall presented in this paper has good economical effect and high generalized value,as compared with bamboo framing wall with sprayed thermal insulation material.
The covered bamboo framing wall with sprayed lightweight composite mortar that sprayed lightweight composite mortar is used outside the frame of the wall.Through tests of the covered bamboo framing wall with sprayed lightweight composite mortar under low reversed cyclic loading,the failure process and pattern were observed.The mechanical behaviors such as bearing capacity,lateral stiffness,ductility,strength degradation,stiffness degradation and energy dissipation capacity were analyzed.The experimental results of specimen presented in this paper were compared with the profiled steel sheet-bamboo plywood composite walls and bamboo framing wall with sprayed thermal insulation material.The results indicate that the main failure modes of wall are dragged out of resistance uplift piece and local failure at the bottom of the wall.Though the composite wall has some cracks in the limit state,the overall structure of the specimen is relatively intact.The composite wall has both good ductility and seismic behavior,and higher shear bearing capacity and initial lateral stiffness.Compared with profiled steel sheet-bamboo plywood composite walls,covered bamboo framing wall with sprayed lightweight composite mortar has better seismic behavior and energy dissipation capacity.The composite wall presented in this paper has good economical effect and high generalized value,as compared with bamboo framing wall with sprayed thermal insulation material.
引文
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[14]郑维,刘杏杏,陆伟东.胶合木框架-剪力墙结构抗侧力性能试验研究[J].地震工程与工程振动,2014,34(2):104-112.ZHENG Wei,LIU Xingxing,LU Weidong.Experimental study on lateral load resistance of glulam frameshear wall structure[J]Earthquake Engineering and Engineering Dynamics,2014,34(2):104-112.
[15]石宇.水平地震作用下多层冷弯薄壁型钢结构住宅的抗震性能研究[D].西安:长安大学,2008.SHI Yu.Study on seismic behavior of cold-formed steel framing system of mid-rise residential building under horizontal earthquake action[D]. Xi′an:Changan University,2008.
[16]李玉顺,沈煌莹,张王丽,等.压型钢板-竹胶板组合墙体抗震性能试验研究[J].工程力学,2010,27(S1):108-112,126.LI Yushun,SHEN Huangying,ZHANG Wangli,et al.Experimental study on seismic behavior of profiled steel sheet-bamboo plywood composite walls[J].Engineering Mechanics,2010,27(S1):108-112,126.
[2]国家林业局.中国森林资源报告(2009-2013)[M].北京:中国林业出版社,2014.The State Forestry Administration of the People′s.Report on China forest resources(2009-2013)[M].Beijing:China Forestry Publishing House,2014.
[3]李玉顺,单炜,黄祖波,等.压型钢板-竹胶板组合楼板的力学性能试验研究[J].建筑结构学报,2008,29(1):96-102,111.LI Yushun,SHAN Wei,HUANG Zubo,et al.Experimental study on mechanical behavior of profiled steel sheet-bamboo plywood composite slabs[J].Journal of Building Structures,2008,29(1):96-102,111.
[4]肖岩,佘立永,单波,等.装配式竹结构房屋的设计与研究[J].工业建筑,2009,39(1):56-59.XIAO Yan,SHE Liyong,SHAN Bo,et al.Research and design of prefabricated bamboo house[J].Industrial Construction,2009,39(1):56-59.
[5]解其铁,张王丽,蒋天元,等.钢-竹组合柱轴心受压性能的试验研究[J].工程力学,2012,29(S2):221-225.XIE Qitie,ZHANG Wangli,JIANG Tianyuan,et al.Experimental study on performance of steel-bamboo composite column under axial compression[J].Engineering Mechanics,2012,29(S2):221-225.
[6]肖岩,陈国,单波,等.竹结构轻型框架房屋的研究与应用[J].建筑结构学报,2010,31(6):195-203.XIAO Yan,CHEN Guo,SHAN Bo,et al.Research and applicant of light weight glue-laminated bamboo frame structure[J].Journal of Building Structures,2010,31(6):195-203.
[7]李琴,汪奎宏,杨伟明,等.重组竹材胶合板制造技术的研究[J].竹子研究汇刊,2003,22(4):56-60.LI Qin,WANG Kuihong,YANG Weiming,et al.Research on technology of remaking bamboo glued board[J].Journal of Bamboo Research,2003,22(4):56-60.
[8]吕清芳,魏洋,张齐生,等.新型抗震竹质工程材料安居示范房及关键技术[J].特种结构,2008,25(4):6-10.LU Qingfang,WEI Yang,ZHANG Qisheng,et al.Key technologies of the new anti-seismic model living room with bamboo engineering materials[J].Special Structures,2008,25(4):6-10.
[9] SHARMA B.Seismic performance of bamboo structures[D].Pittsburgh:University of Pittsburgh,2011.
[10]田黎敏,郝际平,寇跃峰.喷涂保温材料—原竹骨架组合墙体抗震性能研究[J].建筑结构学报,2018,39(6):102-109.TIAN Limin,HAO Jiping,KOU Yuefeng.Research on seismic behavior of bamboo framing walls with sprayed thermal insulation material[J].Journal of Building Structures,2018,39(6):102-109.
[11]中华人民共和国住房和城乡建设部.建筑抗震试验规程:JGJ/T 101-2015[S].北京:中国建筑工业出版社,2015.Ministry of housing and urban-rural development of the People’s Republic of China.Specification for seismic test of building:JGJ/T 101-2015[S].Beijing:China Architecture&Building Press,2015.
[12]苏明周,黄智光,孙健,等.冷弯薄壁型钢组合墙体循环荷载下抗剪性能试验研究[J].土木工程学报,2011,44(8):42-51.SU Mingzhou,HUANG Zhiguang,SUN Jian,et al.Experimental study of the shearing behavior of coldformed steel wall panels under cyclic load[J].China Civil Engineering Journal,2011,44(8):42-51.
[13]姜楠楠,屈俊童.云南民居传统木质隔墙抗侧移性能的改进研究[J].地震研究,2012,35(1):128-132.JIANG Nannan,QU Juntong.Anti-sway performance improving study of traditional wooden brattice of yunnan dwelling[J].Journal of Seismological Research,2012,35(1):128-132.
[14]郑维,刘杏杏,陆伟东.胶合木框架-剪力墙结构抗侧力性能试验研究[J].地震工程与工程振动,2014,34(2):104-112.ZHENG Wei,LIU Xingxing,LU Weidong.Experimental study on lateral load resistance of glulam frameshear wall structure[J]Earthquake Engineering and Engineering Dynamics,2014,34(2):104-112.
[15]石宇.水平地震作用下多层冷弯薄壁型钢结构住宅的抗震性能研究[D].西安:长安大学,2008.SHI Yu.Study on seismic behavior of cold-formed steel framing system of mid-rise residential building under horizontal earthquake action[D]. Xi′an:Changan University,2008.
[16]李玉顺,沈煌莹,张王丽,等.压型钢板-竹胶板组合墙体抗震性能试验研究[J].工程力学,2010,27(S1):108-112,126.LI Yushun,SHEN Huangying,ZHANG Wangli,et al.Experimental study on seismic behavior of profiled steel sheet-bamboo plywood composite walls[J].Engineering Mechanics,2010,27(S1):108-112,126.