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1、现浇钢筋砼构件裂缝的分析与处理（Theanalysisandtreatmentofthecracksintheconcretepartsofthereinforcedconcrete）Wuhancodaconstructionengineeringsupervisionco.,LTDAtpresent,China'smiddleandhigh-risebuildingsadoptreinforcedconcreteframeorreinforcedconcrete"frame-oneshearwallstructure",becauseofthesettingDamage
2、intheconstructionofdefectsandlong-termuse,resultinginawallorfloorknife:crack,creatingadifferentdegreeofcrack.Thesecracks,ifnothandledintime,willinevitablyaffecttheuseofbuildingsandevenstructuralsafety.Inordertoimprovethequalityofengineering,thispapercomprehensivelyanalyzedthecracktype,the
3、causesofthegenerationandthemeasurestopreventcracks.Itishopedthatbysummarizingtheanalysis,itwillimprovethequalitymanagementleveloftheconstructiontechnologyandqualitymanagement.1.Maincharacteristicsoffractureofreinforcedconcretemembers:Duetothemoretypesofreinforcedconcretemembers,thereasons
4、forthecracksofvariouscomponentsaredifferent.InordertomakethesummaryreachacertaindepthInthispaper,onlytwokindsofcomponentsofreinforcedconcretewallandfloorslabareanalyzed.1.1maincharacteristicsofcracksinreinforcedconcretewalls:(1)mostofthemareverticalfractures.Mostofthecracksareclosetothewa
5、ll,andtheendsgraduallybecomethinanddisappear.(2)thenumberofcracksismoreandthewidthisgenerallysmall,withafewmorethan0.3mm,andmostofthecracksarenotmorethan0.2mm.(3)therearemorecracksinthecracks,andsomearerelatedtothesuddendropintemperature;(4)asthetimefracturecontinuestodevelop,thequantityi
6、ncreases,butthegapwidthincreasesnotmuch;(5)thebasementwallhaslesscracknearthelongendandmoreinthemiddleandnear.Leakageofcommoncracksinthebasementafterbackfill,buttheamountofwaterisgenerallysmall.1.2maincharacteristicsofcracksinconcretefloorslab:(1)thecracksaregenerallyshorter,notmorethanon
7、emeterlong,mostlybetween300and600mm.(2)therearemanycracks,andthewidthisabout0.5-3mm.(3)thedepthofthecrackisdifferent,andsomeofthemarethroughthethicknessofthefloor,some3-100mm;(4)thecrackdistributionisusuallyintheboxsurroundedbythesecondarygirder,somealongthedistribu
