填充墙对轻型钢框架结构抗震性能的影响
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摘要
目的研究开洞墙体在单调加载和循环加载作用下的受力性能,找出开洞墙体的破坏方式及其对结构抗震性能的影响.方法利用Abaqus有限元软件对填充墙钢框架进行拟静力分析,框架的主要变化参数为窗洞口的面积.结果 4个模型的承载力和刚度均有明显下降,当开洞率为42%时,模型承载力约为无开洞框架承载力的46.5%,此时结构的刚度和极限位移接近于纯钢框架.结论洞口对结构的承载力和抗侧刚度影响较大,随着洞口面积的增大,承载力和刚度随之降低,极限位移增大,结构的延性性能较好.结构洞口面积的设计不宜超40%.
The purpose of this paper is to study the mechanical behavior of wall with holes in the monotonic loading and cyclic loading,analysis of failure mode of the wall with holes and the structural seismic performance.The use of Abaqus finite element software to steel frame with filled walls for pseudo static analysis,the main changes of the parameters is the area of the window.The results show that four models of bearing capacity and stiffness are significantly decreased,Among them when open hole rate was 42%,the bearing capacity of the model for about 46.5% of the no open hole framework,stiffness and ultimate displacement with the pure steel frame is almost the same.The hole for the bearing capacity of the structure and the lateral stiffness of big effect,with the increase of the area,the bearing capacity and stiffness decreases,limit displacement increases,the ductility of the structure of the performance is better.At the same time the area of the hole of the structure should not be designed more than 40%.
The purpose of this paper is to study the mechanical behavior of wall with holes in the monotonic loading and cyclic loading,analysis of failure mode of the wall with holes and the structural seismic performance.The use of Abaqus finite element software to steel frame with filled walls for pseudo static analysis,the main changes of the parameters is the area of the window.The results show that four models of bearing capacity and stiffness are significantly decreased,Among them when open hole rate was 42%,the bearing capacity of the model for about 46.5% of the no open hole framework,stiffness and ultimate displacement with the pure steel frame is almost the same.The hole for the bearing capacity of the structure and the lateral stiffness of big effect,with the increase of the area,the bearing capacity and stiffness decreases,limit displacement increases,the ductility of the structure of the performance is better.At the same time the area of the hole of the structure should not be designed more than 40%.
引文
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[14]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报,2005,26(3):78-84.(Liu Yushu,Li Guoqiang.Experimental and theoreti-cal research on lateral load resistance of steel framesw ith infilled w alls[J].Journal of Building Struc-tures,2005,26(3):78-84.)
[15]杨海光,郭建军.蒸压轻质加气混凝土条板安装作法[J].建筑技术,2005,36(8):604.(Yang Haiguang,Guo Jianjun.Erection method ofsteam pressed air-entraining light concrete slat[J].Architecture Technology,2005,36(8):604.)
[16]田海,陈以一.ALC板材抗剪性能系列试验研究[C]//中国力学学会.第14届全国结构工程学术会议论文集.北京:工程力学,2005:417-423.(Tian Hai,Chen Yiyi.Series experimental study foralc plate shear performance[C]//Chinese society.The fourteenth national conference on structural engi-neering.Beijing:Mechanical Engineering,2005:417-423.)
[17]贾连光,许峰,张绍武.轻型钢框架结构的抗震性能试验研究[J].工业建筑,2005,35(10):64-68.(Jia Lianguang,Xu Feng,Zhang Shaowu.Seismicbehavior experimental study of light steel framestructure[J].Industrial Building,2005,35(10):64-68.)
[18]贾连光,董富军.利用柱腹板屈曲后强度的钢框架节点板域抗震性能试验研究[J].地震工程与工程振动,2002,22(4):85-89.(Jia Lianguang,Dong Fujun.Experimental study onaseismatic property of steel frame joints utilizingpost-buckling strength of column w eb[J].Earth-quake Engineering and Engineering Vibration,2002,22(4):85-89.)
[2]李国华,郁银泉,顾强.钢框架内填混凝土墙结构体系有限元分析[J].四川建筑科学研究,2007,33(s):17-20.(Li Guohua,Yu Yinquan,Gu Qiang.Finite elementanalysis for concrete infilled steel frame[J].SichuanBuilding Science Research,2007,33(s):17-20.)
[3]刘肖凡,彭少民,李篙峰.钢框架砌体围护体系试验研究及有限元分析[J].武汉理工大学学报,2004,26(22):52-55.(Liu Xiaofan,Peng Shaomin,Li Gaofeng.Experi-mental research and finite element analysis on steel-frame w ith masonry infill retaining structure[J].Journal of Wuhan University of Technology,2004,26(22):52-55.)
[4]淡浩,张瀑,鲁兆红.填充墙刚度对框架结构抗震性能影响的定量分析初探[J].四川建筑科学研究,2010,36(5):137-140.(Dan Hao,Zhang Pu,Lu Zhaohong.The quantitativeanalysis of influence for filler w all's stiffness on seis-mic behavior in frame structure[J].Sichuan BuildingScience,2010,36(5):137-140.)
[5]Khan M A,Ekramulh A.Rationale for determiningthe natural period of rc building frames having infill[J].Engineering Structures,2006,28:495-502.
[6]Mohamma D A,Alim M.Analysis of masonry in-filled steel frames w ith seismic isolator subframes[J].Engineering Structures,2006(27):485-500.
[7]Wael W ElDakhakhni,Mohamed Elgaaly,Ahmad AHamid.Three-strut model for concrete masonry in-filled steel frames[J].Journal of the Structural Engi-neering,2003,129(2):177-185.
[8]Chen Zongping,Zhao Hongtie,Xue Jianyang,et al.Concrete cover thickness of SRC special-shaped col-umns[J].Journal of Harbin Institute of Technology,2005,37(2):181-184.
[9]Fajfar P A.Nonlinear analysis method for perform-ance based seismic design[J].Earthquake Spectra,2003,16(3):573-592.
[10]刘肖凡,霍凯成,谷倩,等.新型砌体复合填充墙钢框架体系试验研究及有限元分析[J].西安建筑科技大学学报:自然科学版,2006,35(5):634-63.(Liu Xiaofan,Huo Kaicheng,Gu Qian,et al.Re-search and finite element analysis on the steel framestructure w ith new infilling cavity w all[J].Journalof Xi'an University of Architecture&Technology:Natural Science Edition,2006,35(5):634-63.)
[11]Henderson R C,Fricke K E,JonesW D,et al.Sum-mary of a large-and small-scale unreinforced mason-ry infill test program[J].Journal of Structural Engi-neering,2003,129(12):1667-1675.
[12]Dafnis,Kolsch,Reimerdes.Arching in masonry wallssubjected to earthquake motions[J].Journal ofStructural Engineering,2002,128(12):153-159.
[13]Ghassan A C,Mohsen L,Steve S.Behavior of ma-sonry-infilled nonductile reinforced concrete frames[J].ACI Structure Journa1,2002,136(4):347-356.
[14]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报,2005,26(3):78-84.(Liu Yushu,Li Guoqiang.Experimental and theoreti-cal research on lateral load resistance of steel framesw ith infilled w alls[J].Journal of Building Struc-tures,2005,26(3):78-84.)
[15]杨海光,郭建军.蒸压轻质加气混凝土条板安装作法[J].建筑技术,2005,36(8):604.(Yang Haiguang,Guo Jianjun.Erection method ofsteam pressed air-entraining light concrete slat[J].Architecture Technology,2005,36(8):604.)
[16]田海,陈以一.ALC板材抗剪性能系列试验研究[C]//中国力学学会.第14届全国结构工程学术会议论文集.北京:工程力学,2005:417-423.(Tian Hai,Chen Yiyi.Series experimental study foralc plate shear performance[C]//Chinese society.The fourteenth national conference on structural engi-neering.Beijing:Mechanical Engineering,2005:417-423.)
[17]贾连光,许峰,张绍武.轻型钢框架结构的抗震性能试验研究[J].工业建筑,2005,35(10):64-68.(Jia Lianguang,Xu Feng,Zhang Shaowu.Seismicbehavior experimental study of light steel framestructure[J].Industrial Building,2005,35(10):64-68.)
[18]贾连光,董富军.利用柱腹板屈曲后强度的钢框架节点板域抗震性能试验研究[J].地震工程与工程振动,2002,22(4):85-89.(Jia Lianguang,Dong Fujun.Experimental study onaseismatic property of steel frame joints utilizingpost-buckling strength of column w eb[J].Earth-quake Engineering and Engineering Vibration,2002,22(4):85-89.)
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