第1页共7页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第1页共7页钢结构厂房地脚螺栓的埋置方法Theembeddingofanchorboltsonthesteelstructurefactorybuilding地脚螺栓的埋置是钢结构厂房施工的一大关键,直接影响到上部钢结构厂房的垂直度,方正度。若地脚螺栓的埋置偏差过大,则会对后期的上部施工中的结构螺栓,檩条螺栓,围梁螺栓的连接等造成很大的困难。在施工过程中,我们要着重控制地脚螺栓的平面位置,垂直度及螺栓钉标高,以尽可能减少上述误差。Fordirectinfluenceontheperpendicularityandsquare,theembeddingofanchorboltsisoneofthemostimportantpointsduringtheconstructionofsteelstructurebuilding.Therewouldbegreatdifficultiesinworkingonstructuralbolts,purlinebolts,andgirtboltsifthereisanydeclinationinembeddingtheanchorbolts.Duringconstruction,thegreatemphasisshouldbeplacedonthehorizontalposition,prependicularityandelevationofboltsinordertoreducesuchdeclinationtotheleast..要求:平面位置误差:+3mm,螺栓顶标高误差:+3mmBasicrequirements:Horizontalpositiondeclination:3mmAnchorboltstopelevationdeclination:3mm§1须配备的设备,工具及施工人员:Workingstaff,NecessaryequipmentandTools:1.1设备及工具:Equipmentandtools:光学水准仪及脚架,标尺1套Opticalwaterlevel&horseandstaffguage1光学经纬仪及脚架,花插1套第2页共7页第1页共7页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第2页共7页Opticaltheodolite,horse&flowerbrace150m以上钢尺1把Steelrule(over50m)13m-5m钢尺2把Steelrule(3-5m)2线锤1只Threadhammer1模线若干Modulestringsome铁锤1把Hammer1定位界椿若干Orientationmarkersome电焊机1台Electricweldingmachine1水平靠尺(高精度)1把Levelingguidingrule(Highprecision)11.2施工人员:Workingstaff有经验的测量工程师1人Well-experiencedmeterageengineer1钢筋工1人Reinforcingsteelbarworker1电焊工1人Electricwelder1木工1人Carpenter1辅助工2人Assistant2§2·板样定位及水准点:第3页共7页第2页共7页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第3页共7页ModelorientationandStandardLevelingPoint2.1板样定位:ModelOrientation:根据图纸要求,对施工现场进行放样,定位。在所有建筑物的角点,必须设立横向,纵向两个控制界柱,并采取适当的加固措施,避免控制界椿在施工过程中遭破坏,所有横向,纵向轴线均设立相对固定的定位椿。所有定位椿的顶标高尽量控制在+0·000上10-20cm,以便日后拉模线,拉尺丈量复核。定位界椿设立之后,应采取反方向闭合测量,修正成果,以减少平面误差Tolocatethepositionandloftingonthejobsiteaccordingtothedrawing.Bothtransverseandlengthwayscontrollingboundarycolumnshouldbeembeddedatthecornerofeverybuilding,thecorrespondingconsolidatingmeasuresalsoshouldbetakensoastopreventthecontrollingboundarycolumnfromdamagingduringtheerection.Thetopelevationoffixedlocationboundarymarkeronbothtransverseandlengthwaysaxisesshouldbecontrolledbetween10-20cmon+0.00,whichwouldbemoreconvenientforthere-measurementinthefuture.Aftertheembeddingofpositionfixedboundarymarker,oppositeclosingmeasureshouldbetakentoadjusttheworks,inordertoreducetheinaccuracyonplanelevel.2.2水准点:Levelingpoint水准点的设立同样相当重要,它直接影响到地脚螺栓顶部标高的控制。建议沿建筑物周边每40m左右设立一个临时水准点。同样,临时水准点设立后,亦须经过闭合测量。Consideringitsdirectinfluenceoncontrollingthetopelevationofanchorbolts,theestablishmentoflevelingpointisalsoaveryimportantprocedure.Wesuggestyousetatemporarylevelpointevery40maroundthebuilding.Sameastheaboveprocedure,closingmeasureisalsorequiredaftertheestablishment.§3地脚螺栓的埋置及准备工作:第4页...