the design and processing of the high strength bolt connection of the great hexagonal high strength bolt

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1、ThedesignandprocessingofthehighstrengthboltconnectionofthegreathexagonalhighstrengthboltLargehexagonhighstrengthboltconnection1scopeThisprocessissuitablefortheconstructiontechnologyofsteelstructureinstallationengineering,largehexagonalhighstrengthboltconnection.Const

2、ructionpreparation2.1materials:Article2.1.1bolts,nutsandwashersshallbeaccompaniedbyacertificateofqualityandshallconformtothedesignrequirementsandthenationalstandards;Thespecifications,dimensionsandweightsofthehighstrengthboltsof2.1.2largehexagonalheadshallconformtoth

3、erulesoftable5-4.Thespecifications,dimensionsandweightsofthe2.1.3highstrengthnutsshouldmeettherequirementsoftable5-5.Thespecifications,dimensionsandweightsofthe2.1.4highstrengthgasketshallbeinaccordancewiththeprovisionsofthetable5-6.Thematerialperformanceoflargehexag

4、onalhighstrengthboltswithdifferentgradesof2.1.5mustmeettherequirementsoftable5-7.Themechanicalpropertiesandpullofthehighstrengthboltsof2.1.6differentspecificationsshallconformtotherulesoftable5-8.Thehardnessof2.1.7hexagonalhighstrengthboltsshallbeinaccordancewiththep

5、rovisionsoftable5-9.2.1.8largehexagonheadhighstrengthboltconnectionviceiswrittenbyabolt,twogaskets,anut,bolts,nutsandwashersshallbeusedaccordingtotable5-10.2.1.9highstrengthboltsshallbeclassifiedaccordingtothespecifications.Shouldpreventrain,moistureproof,encounterwi

6、ththreadinjuryorbolt,nutdoesnotgotogethernottouse.Whenthehighstrengthboltsaretoolong,orrust,theyshouldbecheckedtomeettherequirement.Boltsshallnotbebondedtodirtoroilandmustbecleaned.2.2maintools:Electrictorquewrenchandcontrolbox,manualtorquewrench,torquemeasuringwrenc

7、h,manualwrench,wirebrush,punch,2.3workingconditions:Thefrictionsurfacemustmeetthedesignrequirement,andthefrictionfactormustmeetthedesignrequirement.Noresidualoxideisallowedinthefrictionsurface.Theprocessingandsavingtimeofthefrictionsurfaceandtheconditionofpreservatio

8、nshallbethesameasthetimeofpreservationofthetestpartofthefrictioncoefficient.Thefrictionsurfaceoftheconstructionsiteshouldpreventcon