外廊式單跨框架教學(xué)樓加固設(shè)計(jì)及抗震性能研究

1、外廊式單跨框架教學(xué)樓加固設(shè)計(jì)及抗震性能研究外廊式單跨框架教學(xué)樓加固設(shè)計(jì)及抗震性能研究李紹祥（廈門市建設(shè)工程施工圖審查所廈門361004）［摘要］外廊式單跨框架教學(xué)樓是現(xiàn)有中小學(xué)教學(xué)樓結(jié)構(gòu)中常見(jiàn)的結(jié)構(gòu)體系，抗震加固時(shí)，由于乙類建筑不應(yīng)采用單跨框架，從施工工期和技術(shù)經(jīng)濟(jì)角度分析，采用在挑梁端部設(shè)柱方式改單跨框架為雙跨框架的加固方法，是一種簡(jiǎn)單有效地加固方法。本文采用靜力彈塑性法及按實(shí)配鋼筋同時(shí)考慮樓板T形截面影響的彈塑性動(dòng)力時(shí)程分析法，對(duì)該

2、類加固方法進(jìn)行研究，其研究成果可供中小學(xué)教學(xué)樓抗震加固設(shè)計(jì)時(shí)參考。［關(guān)鍵詞］單跨框架；加固改造；雙跨框架；彈塑性動(dòng)力時(shí)程分析；抗震性能StrengtheningDesignAseismaticPerfmanceResearchofextericridtypeSingleSpanFrameSchoolBuldingLiShaoxiangAbstract:Extericridtypesinglespanframewkbuildingsare

3、verypopularstructuresysteminschoolbuildingsofdleprimaryschools.BecausethestructureofsinglespanframewkshouldnotbeusedinthebuildingofBclass(imptantbuilding)fromtheviewpointofconstructiontimeconvenienceoftechniqueinseismicp

4、roofstrengtheningitisasimpleeffectivemethodbychangingstructuretodoublespanframewk.Inthispaperthiseffectivemethodisresearchedbyelastoplasticdynamicanalysisofstructurebasedonreinfcingbarofactualamountmeanwhileconsideringin

5、fluenceoftheeffectivewidthofTsectionofflo.Ourresultcanbereferencedindesignofaseismaticstrengtheningfthebuildingsofdleprimaryschools.Keywds:singlespanframewkstrengtheningreconstructiondoublespanframewkelastoplasticdynamic