混凝土保护层厚度与结构设计使用年限-黄艳娇

200410(180)Number10in2004(TtolaNo.180)ConCreteChinaBluldingieneeCoPeiela,(,430072)[』,.。50,。,。[,』;;;[]Tu528.01[]A[]l0()23550(20()4)10005802ConeerteeoverthieknessandtheusingepridoofstructuerdesignHUANGaYnjiaO,ZHUuTn(C11eofCivilEngineeirng,WuhanUnivesrity,wuhan430072,Hur,hCina)Ataret:oCneertecarntionandcoosrrionofthernfocrementaerimrtantreasonsthatidminishtheduarbiytofsturetuer.oCneertecoverthieknessisdiecrtlyelratedtoconeerteearnation,andinfluecnesthe~v。dtyofinforee-ment.Itealculatestheearntiondepthofconereteinfiftyyaesr,compaesrottheeoneertecoverthiekness,dpordesad-vieetoimpvoretheduarbUity,whendarftingthedesi,ceofeocnreteeoverthieknsse,thispaePrcansevreasaerferenee.Keyword,:cocnertecoverthieknsse;ear~iton;thePierofsturetuerdseign;durability,,:、,、,,3.`、r.、,,,;;。,,。,。,50.(G5B00102002),,。w/e0.6,d=kxio4.27x·”x4W/C0.6,d=kx73.54x·g3x’d—;k—;kc—;k,—;t—()。:d=,:、、(12.13·22,,、:yl—,0.50.7;(4)1.0,d=·:、(1·。(1)d—;—;al—;a2—;a3—;t-()。[B]2004062658.—,1s%1.1;—,1.0,0.50.8,1.11.20,,,、、::d`haK(5)—,1·4,1·;0ha,,1·02.5;kp—,1·;2K.es,K。=2.56(1RH)RH,T,RH;K,—,Kr=57.940.76,;K—。350,COZ,,,,...(5),50。T16.3℃,RH=0.79,=1.0,CoZhaLS,kpL2,K。0.8533,K=0.996,K,。,50,,4C0,,.,2C0150QO2C5C30C354CO4C55COfn13.416.720.123.426.829.632.4Kr50/mm3.5652.7102.1231.7161.4021.19812.9611.02838.5729.32422.97318.57415.17411.131/mm;,2C0、2C5,;,2C0,,2C5。,,。,,,5,12mm,3,17.2mm。,50,。4,,。、、、。【2〕,:、x=46ckr`e0·04T(RH0.45)2/3。1·36f1·531—;;—。,,,。,。5,20,,,,COZ,.。,,,。,,,70,70。,、、,、、smm,。〔〕().G5Bo0102002.【2〕.[M].,2003.〔3],.〔M〕.,2002.〔4].[J]..1992(6):1822.【5〕,,.【J].,2002(4):28253.【61,,.【J].,2000(2):210213.〔71.【M].,1999.【8」,.【M〕.,1990·[][〕【〕,1976,,,。2002()(430072)02762137190;Emad:hyjiao20()2@,hu.com59