钢结构厂房地脚螺栓的埋置方法.doc

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1、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,theemb

2、eddingofanchorboltsisoneofthemostimportantpointsduringtheconstructionofsteelstructurebuilding.Therewouldbegreatdifficultiesinworkingonstructuralbolts,purlinebolts,andgirtboltsifthereisanydeclinationinembeddingtheanchorbolts.Duringconstruction,thegreatemphasisshouldb

3、eplacedonthehorizontalposition,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,Necessaryequ

4、ipmentandTools: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7Opticaltheodolite,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Orientationmarker

5、some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Assistant27§2·板样定位及水准点：ModelorientationandStandardLeve

6、lingPoint2.1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

7、.Bothtransverseandlengthwayscontrollingboundarycolumnshouldbeembeddedatthecornerofeverybuilding,thecorrespondingconsolidatingmeasuresalsoshouldbetakensoastopreventthecontrollingboundarycolumnfromdamagingduringtheerection.Thetopelevationoffixedlocationboundarymarkero

8、nbothtransverseandlengthwaysaxisesshouldbecontrolledbetween10-20cmon+0.00,whichwouldbemoreconvenientforthere-measurementinthefuture.Aftert