钢结构施工技术要求英文翻译Word文档格式.docx

钢结构施工技术要求英文翻译Word文档格式.docx

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2.6Highstrengthboltshallbeabletogointotheboltholefreely.Theenlargementoftheboltholeshallnotusegascutting,theholeenlargementnumbershallbepermittedbythedesigner,thediameterafterholeenlargementshallnotbemorethan1.2d（distheboltmdiameter）.

3fabricationofSteelpartsandcomponent

3.1Steelcuttingsurfaceandshearplaneshallnothavecrack,slag,lamination,oredgemissingwhichlargerthan1mm.

3.2Correctedsteelsurfaceshallnothaveobviousdentordamage,thescratchdepthshallnotbemorethan0.5mm,andshallnotbemorethan1/2oftheallowabletoleranceofthicknessofthesaidsteel.

3.3Whenedgeprocessingisnecessaryforgas-cutpartsormechanical-cutparts,theplanedthicknessshallnotbelessthan2.0mm.

4Assemblingandinstallationofsteelelements

4.1ThedistancebetweenflangeweldingandwebweldingofHbeamsshallnotbelessthan200mm.

5installationofSinglelevelstructure

5.1Generalregulations

5.1.1Theacceptanceofsteelstructureinspectionshallbeexecutedafterarrivecheckandacceptance,atsiteandinspectionoffastenerinstallationandfabrication.

5.1.2Regardingthemeasurementandcorrectionofinstallationandhighstrengthboltinstallation,techniquetestorevaluationshallbeconductedbeforeinstallation,andmakerelevantconstructiontechniqueandplanbasedonthis.

5.1.3Thedetectionofinstallationdeviation,shallbeconductedafterthestructurehasformedspacerigidunitandfastened.

5.1.4Whileinstalling,strictlycontroltheconstructionloadonroof,floorandplatform.Neverapplyconstructionloadandsnowloadongirder,purlin,roof,floorandplatformboardshigherthandesigned.

5.1.5Afterformingthespacerigidity,applysecondarypouringwithfinestoneconcrete,andgroutingmaterialsfortheintervalsbetweencolumnbottomboardandfoundationtopsurface.

5.2FoundationandSupportingSurface

5.2.1Thepositioningaxis,foundationaxis,elevation,sizeandfasteningofanchorboltsshallcomplywiththedesignrequirements.

5.2.2Whenthefoundationtopsurfaceactsdirectlyasthesupportingsurfaceforcolumns,ortheembeddedsteelsheetsorsupportingstandassupportingsurfaceforcolumns,theallowabletoleranceofthebracingplane,anchorboltpositionshallcomplywiththeregulationinTable1.

Table1AllowableToleranceofbracingplane,foundationboltspositions

Items

AllowableTolerance（mm）

Bracingplane

Elevation

±

3.0

Levelness

L/1000

Foundationbolt

Boltcentershifting

5.0

obligatedholecentershifting

10.0

5.2.3Whenmortarbedistobeadopted,themortarbed’sallowabletoleranceshallcomplywiththeregulationinTable2.

Mortarbed’sAllowabletolerance（mm）Table2

AllowableTolerance（mm）

Topelevation

0.0-3.0

L/1000

Position

20.0

5.2.4Foundationbolt（anchorbolt）’ssizedeviationshallcomplywithTable3.Thethreadofanchorboltshallbeprotected.

anchorboltsizeAllowabletolerance（mm）Table3

Allowabletolerance（mm）

Exposedlengthofbolt

+30.0

0.0

Threadlength

5.3InstallationandCorrection

5.3.1Steelstructuredeformationandpaintdamagecausedduringtransportationandhandlingshallbecorrectedandrepaired.

5.3.2Allowabletoleranceofverticalityandbendingsectorheightofsteelrooftruss,truss,girder,andcompressionmembershallcomplywithTable4.

Table4Steelrooftruss,truss,girder,andcompressionmember

verticalityandsidebendingelevationAllowabletolerance

Item

Allowabletolerance

Midspanverticaldegree

H/250，and15.0

l/250,and15.0

Sidebendingelevation

l30m

l/1000,and10.0

30m<

l60m

l/1000,and30.0

>

60m

l/1000and50.0

5.3.3AllowabletoleranceofverticalityandplanebendingofsinglestoreysteelstructureshallcomplywiththeregulationinTable5.

Table5Allowabletoleranceofverticalityandplanebending（mm）

Mainstructurewholeverticaldegree

H/1000,and25.0

Mainstructure’swholeplanebendingdegree

L/1500,and25.0

5.3.4Centerlineandelevationbenchmarkofmajorcomponentslikesteelcolumnshallbemarkedproperly.

5.3.5Whensteeltruss（orgirder）isinstalledonconcretecolumn,thetoleranceofitsbasecentertopositioningaxisshallnotbemorethan10mm;

Incaseofusinglargeconcreteroofslabs,toleranceofsteeltruss（orbeam）pitchshallnotexceed10mm.

5.3.6TheAllowabletoleranceforsteelcolumninstallationshallcomplywithregulationsinTable6.

Table6TheAllowabletoleranceforcolumninstallation

insinglelevelsteelstructure

Allowabletolerance（mm）

Shiftingofcolumnstandcenterlinetopositioningaxis

Elevationofcolumnbenchmark

Columnwithcranebeam

+3.0

-5.0

Columnwithoutcranebeam

+5.0

-8.0

Bendingelevation

H/1200，and15.0

Verticalityofcolumnaxis

Singlestoreycolumn

H10m

H/1000

H>

10m

Multi-linkcolumn

Singlecolumn

H/1000，and15.0

Totalheight

35.0

6installationofmulti-storeysteelstructure

6.1Generalregulations

6.1.1Thelengthdimensionofstructuressuchascolumn,girder,andsupportshallincludedeformationvaluesuchasweldingshrinkageallowance.

6.1.2Whileinstallingcolumn,eachcolumn’spositioningaxisshallintroducedirectlyformgroundcontrolaxis,notformtheaxisofthecolumnunderneath.

6.1.3Installationinspectionofsteelstructureshallbeconductedafterinspectionatdifferentstageslikematerialarrivalatsite,welding,fastening,fabrication,etc.

6.2Foundationandsupportingsurface

6.2.1Thepositioningaxisofbuilding,positioningaxisandelevationofcolumnsonfoundation,anchorbolt’ssizeandpositioning,anchorboltfasteningshallcomplywiththedesignrequirements.Whennocleardesignrequirementsisavailable,itshallcomplywiththeregulationofTable1.

6.2.2Inmulti-storeybuilding,whenthefoundationtopsurfaceactsdirectlyasthesupportingsurfaceforcolumn,orthepre-buriedsteelsheetorsupportingstandassupportingsurfacesforcolumn,theallowabletoleranceofthesupportingsurface,anchorboltpositionshallcomplywiththeregulationinTable1.

6.2.3Inmultilevelbuilding,allowabletoleranceofmortarbeddingshallcomplywiththeregulationinTable2.

6.2.4AnchorboltsizetoleranceshallcomplywithTable3.Thethreadofanchorboltshallbeprotected.

6.3InstallationandCorrection

6.3.1ThetoleranceofcolumninstallationshallcomplywithTable6.

Table6AllowabletoleranceofColumninstallation

Theshiftingofstandaxisofgroundcolumntopositioningaxis

Columnpositioningaxis

1.0

Verticalityofsinglelinkcolumn

H/1000，and10.0

6.3.2Theallowabletoleranceofverticalityandsidebentelevationofmajorsteelgirder,secondarygirderandcompressionmembershallcomplywithTable5.

6.3.3Multi-storeyandhighrisingsteelstructure’sentireverticalityandtheentireplanarbendingshallhaveallowabletolerancecomplyingwiththeregulationinTable7.

Table7Allowabletoleranceofwholeverticalityandwholeplanebending

Mainstructure’swholeverticality

（H/2500+10.0），and50.0

L/1500，and25.0

6.3.4Wemusthavecompletelabeltoitemssuchasthecenterlineofsteelcolumn,whichismajorstructure,anditselevationdatum.

6.3.5Whenthesteelpartsareinstalledontheconcretecolumn,thedeviationofitsstandcentertopositioningaxisshallnotbelargerthan10mm;

Whenlargeconcreteroomboardisinvolved,steeltruss（orgirder）’sintervaldeviationshallnotbemorethan10mm.

6.3.6TheAllowable