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时间:2020-03-27
《框架-嵌入式墙体结构抗震性能试验研究与有限元分析.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、建箕结构堂拯』Q旦塑!!!!坠世i篮曼!旦!堕!!量i;差盘墨竺翌盘;竺—l文章编号:1000—6869(2017)05—0092—08DOI:10.14006/j.jzjgxb,2017.05.012框架-嵌入式墙体结构抗震性能试验研究与有限元分析魏文晖1,徐沛韬1,高湛2,张法辉1,阂东1(1.武汉理2r-大学道路桥梁与结构212程湖北省重点实验室,湖北武汉430070;2.中南电力设计院,湖北武汉430071)摘要:对框架一嵌入式墙体结构进行了拟静力试验和有限元分析,研究r其承载力和耗能能力,探讨了墙板与柱间摩擦系数、轴压比以及墙板分割块数对结构抗
2、震性能的影响。研究结果表明:框架一嵌人式墙体结构滞回曲线形状较为饱满,表现出良好的延性和耗能能力,且嵌入墙体后明显提高、r框架结构的抗侧刚度和承载力;在结构屈服前(正常使用状态),墙板间无明显通缝,屈服后,墙板错动现象明显,墙板与墙板、墙板与底梁间均出现明显的通缝,增加墙板与柱间的摩擦系数,可减小通缝宽度;在一定范围内,增大柱轴压比,可提高框架一嵌入式墙体结构的承载力;由于嵌入墙板与柱轴线不在一直线上,框架柱承受r一定的扭矩,在实际工程设计中,应增加柱的抗扭构造配筋或进行柱抗扭配筋设计。关键词:框架一嵌人式墙体结构;拟静力试验;有限元分析;抗震性能中图分
3、类号:TU398.9TU317.1TU311.41文献标志码:AExperimentalandanalyticalstudyonseismicperformanceofframe—embeddedwallsWEIWenhuil,XUPeita01,GAOZhan2,ZHANGFahuil,MINDon91(1.HubeiKeyLabofRoadBridgeandStructureEngineering,WuhanUniversityofTechnology,Wuhan430070,China;2.CentralSouthernChinaElectricP
4、owerDesignInstitute,Wuhan430071,China)Abstract:Thebeatingcapacityandenergydissipationoftheflame--embeddedwallswerestudiedthroughquasi·-statictestandfiniteelementanalysis.Theinfluencesofflictioncoemcientbetweenthewallboardandcolumn.axialcompressionratioandnumberofthewallboardsonse
5、ismicperformanceofthestructurewerealSOexplored.Theexperimentalandanalyticalresultsshowthatthehystereticcurvesoftheflame—embeddedWallsarefidl.Thestructureperformswellinductilityandenergydissipation.andtheembeddedwalls‘:animprovethelateralstiffnessandultimatebeatingcapacityofframes
6、tructureobviously.Thereisnosignificantcrackbetweenthewallboardsbeforethestructureyields,whiletheappearancesofdislocationmid('rackbetweenthewallboards,crackbetweentheWallboardsandbottombeamareobviousafterthestructureyields.Thecrackwidthcanbereducedthroughincreasingthefrictioncoeff
7、icientbetweenthewallboardandcolumn.Withtheincreaseofaxialcompressionratio,thebearingcapacityofthestructureisimproved.Eachcolumnbearslargetorquebecauseoftheeccentricitybetweenembeddedwallandaxisofcolamn,,soitisnecessarytoimproveorcalculatethestructuralreinforcementtoenhancethetors
8、ionresistanceabilityinpracticalengineeri
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