复合地基的超操作规范和流程.pdfVIP

复合地基的超操作规范和流程

EnglishAnswer:

1.ApplicableCodesandStandards.

2.ProcedureforCompositeDeckDesign.

2.1.DetermineDesignLoads.

Deadloads:Self-weightofthedeck,partitionwalls,

mechanicalequipment,etc.

Liveloads:Occupantloads,furniture,storage,etc.

Windloads:AsperASCE7-16。

Seismicloads:AsperASCE7-16。

2.2.SelectDeckType.

Precastconcretejoistswithmetaldeck.

Compositemetaljoistswithmetaldeck.

Concrete-filledmetaldeck.

2.3.CalculateMaximumMoment.

Determinethemaximumpositiveandnegativemomentsat

thecriticalsectionsofthedeck.

Useappropriateanalysismethods(e.g.,moment

distribution,finiteelementanalysis).

2.4.SelectShearConnectors.

Studshearconnectors.

Channelshearconnectors.

Headedstuds.

2.5.DetermineShearConnectorSpacing.

Calculatetherequiredshearconnectorspacingbased

onthemaximumshearforceandtheshearconnector

resistance.

Ensuresufficientembedmentlengthinbothconcrete

andmetaldeck.

2.6.CheckDeflections.

Calculatetheexpecteddeflectionsunderserviceloads.

Ensurethatdeflectionsmeettheallowablelimitsfor

theintendeduseofthedeck.

2.7.DesignConcreteTopping.

Determinetherequiredthicknessandreinforcementof

theconcretetopping.

Ensurethatthetoppingprovidesadequatecoverfor

theshearconnectors.

2.8.DetailingandConstruction.

Preparedetaileddrawingsshowingthelayoutofthe

deck,shearconnectors,andconcretetopping.

Followproperconstructionpracticestoensurea

compositeactionbetweentheconcreteandsteelcomponents.

3.FactorsAffectingCompositeBehavior.

Concretestrength.

Steeldeckthickness.

Numberandspacingofshearconnectors.

Embedmentdepthofshearconnectors.

Installationworkmanship.

4.QualityC