钢筋溷凝土连续深梁开口 continuous deep beams with openings

《钢筋溷凝土连续深梁开口 continuous deep beams with openings》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、TheIESJournalPartA:Civil&StructuralEngineeringVol.2,No.4,November2009,282–295TECHNICALPAPERExperimentalverificationofcontinuousdeepbeamswithopeningsdesignedusingstrut-and-tiemodellingT.WuandB.Li*SchoolofCivilandEnvironmentalEngineering,NanyangTechnologicalUniversity,50NanyangAvenue

2、,Singapore(Received14May2009;finalversionreceived23June2009)Thisstudyinvestigatestheapplicabilityandreliabilityofthestrut-and-tiemodellingthatisrecommendedbytheACI318BuildingCode(2002)fordesigningcontinuousdeepbeamswithopenings.Presentedhereinareexperimentalresultsoftwofull-scaleco

3、ntinuousreinforcedconcretedeepbeamswithopeningssubjectedtoconcentratedloads.EachspecimenwasdesignedusingtheACI318(2002)provisionsforstrut-and-tiemodels.Bothspecimenswerefoundtobeabletocarryloadsgreaterthanthefactoreddesignload.Thefailuremechanismofeachspecimencorrespondswellwithth

4、edesignedstrut-and-tiemodels.Theexperimentalresultsthusillustratethereliabilityandconservativenatureofstrut-and-tiemodellingfordesigningcontinuousdeepbeamswithopenings.Keywords:reinforcedconcrete;deepbeamwithopening;strut-and-tiemodelmodellingwasconductedindifferentcountriesinthe1.

5、Introductionpastdecade,therehavebeenrelativelylittleexperi-Overtheyears,designershavebeendesigningre-mentalverificationsonitsapplications.inforcedconcretestructuresbasedoncodesofpracticeThisarticlepresentsthedesignprocessaswellassuchasACI318(2002),CSA(1994)andNZS3101theexperimental

6、resultsoftwofull-scalereinforced(1995).Thesecodesofpracticeproposetheuseofconcretecontinuousdeepbeamswithopenings.Bothempiricalorsemi-empiricalrulesandequationswhichspecimensweredesignedusingtheACI318(2002)areoftennotproperlyunderstoodbydesigners.provisionsforstrut-and-tiemodeltor

7、esisttwo400kNConsequently,designersoftenfindthesecodesinade-concentratedloadsappliedatmid-spans.Thesetwoquatewhendesigningforcomplexnon-flexuralregionsspecimenshaveidenticaloveralldimensionsandofreinforcedstructures,andhencemoststructuralopeninglocations,albeit,differentsizesofopenin

8、gs.elementswithdisturbedregionswe