【精品】拱形安装指导书.doc

【精品】拱形安装指导书 1.工程概况Project Introduction本工程为螺栓球网架拱形结构、上弦支撑、单层彩色压型钢板围护。 两跨连接处为集中排水。 This project is archstructure of bolt ball lattice framewith upper chord bracing,being enclosedby single-storied andcolor profilesteel plate.Connection withtow spanis forcentral drainage.2网架安装2.Installation of lattice frame2.1关于螺栓球网架2.1About bolt ball lattice grid螺栓球网架既是以螺栓球为节点用钢管杆件由高强度螺栓相连接组成的空间结构体系。 所有杆件均是轴心受力（拉力或压力）。 其结构非常简单安装时仅用简单工具（如开口扳手）即可安装。 Bolt balllattice frameis aspace structuresystem whichmakes boltball as node andis posedof steeltube member with high strength bolt.All members are axially-loaded(tension orpressure).The structurevery simple,so onlysome simpletools could be used for installation(such as:open spanner).螺栓球节点如图2.1所示。 Joint ofboltball,see asdrawing2.1:2.2安装方案的确定2.2Confirmation of installation plan2.2.1螺栓球网架的安装方法一般有2.2.1Installation method ofboltballlattice grid A高空拼装（高空散装）法是一种直接安装的方法。 需要满堂搭设脚手架即是临时支撑又是安装平台。 本工程如采用此方法则需架子管23千吨，且搭设脚手架的周期较长。 A.Overhead assemblagemethod byindividual membersis adirect methodof installation.This methodneeds fullframing scaffoldingto betemporary supportand installation platform.If weadopt this method for the project,it needs2000t3000t tubeand timefor scaffoldingis toolong.B整体吊装法即在地面拼装好（全部或部分），再整体吊装就位.此法适用于小型且高度不太高的工程。 B.Integral hoistingmethod meansthat allparts wouldbe splicedtogether on the groundand thenhoisted for installation.This methodis suitableforthe project thatis smalland notvery high.C滑移施工法指仅在网架的一端搭设操作平台,按跨度沿长度方向拼装若干个网格形成稳固的拼装单元后,使支座沿辅设的轨道滑移一段距离（24网格的距离）后再继续拼装,再滑移,直至最先拼装的滑移到网架的另一端就位。 按此方法也可分段安装。 滑移,再各段进行连接，此方法较为经济适用广泛。 C.Slipping construction method meanserect operation platform onlyat oneend of lattice grid,and built-up severalgrids alonglength directionaording tospan to form stablesplicing unit,then makesupport slipfor adistance(distance of24grids)along rail.And then,continue building-up andslipping tillthe splicing unit built-up atfirst slippedto theother endof lattice grid.It canalso installpartly withthis method.Slip,and then link eachpart together.This methodis economicand widelyapplicable.本工程采用此方法进行施工。 We adoptthis method for constructionof theproject.2.2.2本工程的安装顺序2.2.2Installation sequence of theproject建议本工程的安装按照先安装61.93m跨再安装53.84m跨的顺序进行。 Its remendedto installspan61.93and thento installspan.3滑移方向第一期从42轴向轴滑移。 第二期从86轴向43轴滑移。 第三期从128轴向87轴滑移。 2.2.3Slip direction:first phaseslip from42axis toaxis,second phaseslip from86axis to43axis,third phaseslip from128axis to87axis.2.3基础验收2.3Foundation aeptance确定安装方案后，安装前应对基础进行验收。 基础验收合格后才能进行网架安装。 It shouldcheck andaept before installation afterconfirm installationplan.Only iffoundation aeptanceis qualified,it couldinstall lattice grid.2.3.1基础的定位轴线的位置应符合设计的要求。 支座锚栓的规格应符合设计要求。 2.3.1Position ofcoordinate gridline ofbuilding offoundation should be aording to designdemand.Specific of pedestal anchor bolt shouldbe aording to designdemand.2.3.2支撑面顶板的位置.标高.水平度及支座锚栓位置的允许偏差应符合下表规格2.3.2Position,elevation andhorizontal degreeof bearingsurface top slab andtolerance deviationof pedestalanchorboltshouldbeaording tofollowing specific项目Project允许偏差（mm）Tolerance deviation支撑面顶板Bearing surface位置Position15.0顶面标高Elevation of top-3.0topslabsurface顶面水平度Horizontal degreeoftopsurface l/1000支座锚栓Pedestal anchorbolt表中l代表为支座间距。 In abovelist:1means thedistance betweenpedestals中心偏移5.02.4构件的验收及堆放。 2.4Aeptance andstocking formember2.4.1网架杆件的弯曲矢高允许偏差为11/1000且不大于5.0mm。 （11为杆件长度）杆件成品允许偏差为1mm.验收方法用钢尺和拉线进行实测。 2.4.1Tolerance deviationof bendingarch risefor lattice grid is11/1000and nomore than5.0mm.（11is lengthof member）Tolerance deviationof memberfinished productis1mm.2.4.2将进场的螺栓球和杆件进行清点.复查并按规格大号顺序进行摆放。 构件的摆放或堆放的场地应靠近操作平台以便于取用。 2.4.2Count andexamine boltsand members,arrange themin specifics,size andnumber order.Site for stacking shouldbe close to operation platform forusing conveniently.2.4.3杆件在制作时已将与螺栓球连接的高强螺栓预先装进杆件内。 如图所示杆件2.4.3While producingmember,highstrengthbolt connectwith boltball has been putinto member.see the drawing:member.所以在清点杆件的同时应将高强螺栓倒立并套上套筒装好顶丝。 如图所示So whilecounting members,tip outbolts,and putsleeves inmembers then fasten the screw,see thedrawing:高强螺栓钉丝套筒Sleeve杆件MemberScrew注意事项顶丝不可顶的太紧，应保证套筒自由滑动。 Attention:dont fastenthescrewtoo tight,and make sure that the sleevescould movefreely.2.5人员的组织按单跨顺序进行安装的人员配置如下2.5Staffing Staffingaording tosequence ofsingle span:2.5.1地面操作人员使作用两台25t吊车可分为两个小组。 每小组由司机1人.指挥1人.安装技术工人56人.辅助工人2人组成.两组共20人。 负责在地面进行锥体小拼及中拼单元的装拼，杆件的分发.吊运等工作。 2.5.1Operators on the groundcould be divided into2groups whileoperating two25t cranes.Each groupis posedof1driver,1director,56installing techniciansand2auxiliary personnel.Total oftwo groupsis20people whoare responsiblefor built-up smallsplicing unit and middlesplicing unit,distribute andhoist membersetc.2.5.2操作平台及高空作业，也分为2个小组分别从两侧支座处向上进行安装。 每组人员配置如下安装技术工人4人.辅助工人1.组长1人两组共16人。 如因工期要求的确需两跨同时安装应等61.93m跨完成23段安装后从同一端进行。 2.5.2Operators whowork onoperationplatform and workabove groundlevel alsobedividedinto twogroups to install frompedestal oftwo sidesto thetop.Each groupstaffing:4installing technicians,1auxiliary personneland1team leader.2.5.3滑移操作人员每侧需6人两侧共12人以上不包括项目部人员及后勤保障人员需48人。 如两跨同时进行安装人员不少于96人。 2.5.36slipping operatorsat each side,total is12Total staffis48except personnelof projectdepartment andrear-service personnel.If installingtwo spansat the same time,it needsno less than96installation staff.2.6工机具准备2.6Preparation fortools2.6.1安装网架的最基本的工具是开口扳手或呆扳手2.6.1Open endwrench orsolid wrenchis stapletool for lattice grid installation开口扳手规格如下Specifics ofopen endwrench:长度（m）最大开口宽度（m）试验扭矩（N.m）515300375450600364655659xx701975Length（m）300Maximum width（m）36Test twistingmoment375450600465565（N.m）5159xx701975双头呆扳手规格如下（规格是指适用的六角头的对边宽度.单位mm）Specific ofsolid wrench:(specific meansapplicable subtensewidth ofhexagonal head)32*3636*4141*4646*5050*5555*6060*6565*70呆扳手的试验扭矩值如下Test twistingmoment ofsolid wrenchas follows:扳手规格（mm）36试验扭矩（N.m）5364146505560657069287210301246148317402018Specific ofwrench（mm）Test twistingmoment3641465055606570（N.m）53669287210301246148317402018本工程最大的螺母的对边宽度为70mm Themaximum subtensewidth ofnut in theprojectis70mm.以上工具应为每一名安装工配备。 Each installationpersonnel should have thetools mentioned above.2.6.2除扳手外辅助工具有A:一字形螺丝刀用于旋紧螺母的顶丝B手钳或钢丝钳。 C滑车用于吊放较轻便的物件工具或杆件。 D千斤顶用于调整和落放安装好的网架单元。 5t.10t.20t各备4台或以上。 E手拉葫芦用于调整网架及滑移5t.10t.20t各不少于4台F5m钢卷尺不少于6把。 2.6.2Supplementary tools:A:screwdriver forfastening topcrew onnut Bhand viceor wire-cutter CPulley is used for hoisting somelight toolsor membersD Jackisusedfor adjusting lattice gridunit which is splicedtogether.Jack5t.10t.20t,prepare eachkind no less than4.E Chain block isusedforadjustinglattice grid andslipping.Chain blockwith5t.10t.20t,prepare eachkind no less than4F Noless than6steel tapeswith5m2.6.3安装网架时所需辅助材料有A钢丝绳直径18mm主要用做滑移对牵拉及安装或安装单元后沿跨度方向做拉索用，数量要足够（不少于500m）B钢丝绳用各种卡扣.套环.绳卡等，根据需要备用。 C滑移时作轨道使用的槽钢36.250m2.6.3Supplementary toolsfor installation of lattice grid:A Steelwire with18mm diametercould beused asbracing cablealong spandirection aftersplicing unit,quantity mustbe sufficient（no less than500m）B Allkinds ofshackle,clamp usedfor steelwire shouldbe preparedC Boxiron asrail for slipping is36.250m2.6.4吊装设备由于采用滑移法施工对吊装设备的需要相对也较简单。 一般25t汽车吊即可满足使用要求。 本工程安装时应使用2台吊车相互配合。 2.6.4Hoisting equipment25t carcrane is the onlyhoisting equipment forslippingconstructionmethod.It needstow cranesin this project2.7搭设脚手架脚手架作用为网架安装操作平台同时也为安装网架时的临时支撑。 建议先搭设61.93m跨网架的脚手架。 脚手架按拱形网架下弦球的高度沿下弦搭设或阶梯形长度12mm。 脚手架的位置为38轴42轴。 （第二期82轴86轴；第三期124轴128轴）阶梯形脚手架及拱形网架下弦高度参数见图2.72.7Scaffolding Scaffoldcould notonly asoperationplatformfor lattice gridinstallationbut alsoas temporarysupport.Its remendedto scaffoldingforlattice grid with span61.93m.Scaffolding aordingto lowerstring ballheight of arch lattice grid orstep formlength12mm.Position ofscaffold isaxis38axis42.(Second phase:axis82axis86,third phase:axis124axis128)2.8网架安装以下61.93m跨的拱形网架第一期（轴42轴）的安装方法和过程，其余53.84m跨可参照此方法和过程进行安装。 2.8Installation oflattice gridMethod and sequence ofinstallation forfirst phase(axis42axis)of arch latticegrid with span61.93m as follows,the samecould alsobe carriedout forspan53.84m.2.8.1铺设滑移轨道选用36槽钢作滑移轨道分别沿A轴线及B轴线铺设。 铺设长度可以一次完成也可视滑移距离分段铺设。 2.8.1Laying slippingrail Choose36box ironas slippingrail tolaying alongaxis A and axis B.It couldlaying wholerail atone timeor layingpartly,both are right.为保障滑移顺畅进行，滑移轨道的铺设应向内偏移30mm，同时还应采取措施保证在滑移过程中槽钢轨道不因拱形网架支座受水平推力使轨道向外距离。 如图所示For makea smoothslipping,rail shouldbe movedinside30mm,and takemeasures toensure thatbox ironrail would not deviatebecause ofhorizontal forceon arch latticegridpedestal.槽钢box iron注意因轨道槽钢是放在地脚螺栓上的应采用垫块将槽钢垫稳防止槽钢在滑移过程侧翻。 Attention:Because therail box iron isput on the foundation bolt,it needcushion blockto makeboxironstable foravoiding turnover duringslipping.2.8.2安装支座安装从A轴线及B轴线按照上下弦杆件及腹杆安装图同时进行。 下面是从A轴线开始安装的方法和过程B轴线的安装方法同A轴线完全一样。 B轴线与A轴线的安装应同步进行至拱形中部进行合拢依次放在滑移轨道槽钢内B轴支座为B51及5个B49。 用杆件1D及4根1V依次将支座A5.A13.A21.A13.A13.A13连接形成16轴的底面。 2.8.2Installation ofpedestal Install axis A and B at thesame timeaordingto installation drawing of upper and lower chord andweb member.Installation method and sequencefor axis A which is samefor axis B asfollows.Installaxis Aand Bat thesame time tillthe middleof archthen closedand putinto chute,pedestal of axis BisB51and fiveB地面拼装小锥体单元。 见图2.8.3Ground surfacesmall conicalsplicingunit,see drawing用下弦球B31与杆件1.1A.3B.3E连接。 Link with lower ball B31with member1.1A.3B.3E11133321123321图杆件1.1A的另一端分别安装上弦球A4.A12。 Install upper ball A4.A12attheother endof member1.1A两根上弦杆2A分别与上弦球A4.A12相连，形成小锥体1（下面简称锥体1.2.）。 Link twoupper chords2A with upper ball A4.A12to forma small cone1(hereafter calledcone1.2)按同样的安装方法和过程拼装第2.第3个小锥体单元。 如图所示；Install the second andthird small cone withsame method and sequence,see thedrawing:33221111112232锥体二锥体三按的方法拼装小锥体4.5。 如图所示Install small cone4.5with methodof,see thedrawing:32111123锥体4锥体52.8.4安装小锥体单元2.8.4Installation ofsmallcone安装第一个小锥体用吊车（安装网架的下面几层时由于高度较低可根据实际情况选用小吨位吊车如8吨吊车）吊起锥体1将下弦球B31落在第一层操作平台上（参见图2.7高度1.4平台）使斜腹杆3B及上弦杆2A与支座A5相连斜腹杆3E及上弦2A与A13相连。 检查各杆件均已紧固并将下弦球B31在平台上垫实即完成第一个锥体安装。 Install the first smallcone Hoistcone1by crane(it canchoose cranewith lesstons suchas8tons whileinstalling bottomlayers oflatticegrid)and put lower ballB31on the first layerof operationplatform(see thedrawing2.7height1.4platform)to link diagonal web member3B and upper chord2A with pedestal A5,web member3E and upper chord2A with pedestal A13.Check all members arefastened andlower ballB31is stabilizedontheplatform.安装第2个小锥体按上步方法将锥体2的下弦球A19落在平台上使腹杆2C及上弦3A与3轴支座A21相连；斜腹杆3F及上弦杆2A与4轴支座A13相连。 检查各杆件均已紧固并将下弦球A19垫实即成第一个锥体安装。 Install the second smallcone Aording to method mentioned above,putlower ball A19of cone2ontheplatform to link web member2C andupper chord3A with pedestal A21of axis3;diagonal web member3F andupper chord2A withpedestal A13of axis4.Check allmembers arefastened andlower ball A19is stabilizedontheplatform.按上面的方法将锥体3与5轴线支座及6支座连接并紧固。 Aording to methodmentionedabove,link cone3and pedestalof axis5withpedestal6then fasten.安装第4个小锥体及第5个小锥体。 上面的方法使锥体4的斜腹杆2C及3F分别与2轴支座A13及3轴支座A21连接；腹杆1B.1B分别与上弦球A12.A20连接并紧固。 锥体5的腹杆2C.3F.1B.1B分别与4轴支座A13.5轴支座A13及上弦球A12.A12相连并紧固。 Install theforth andfifth smallcone Aordingtomethodmentionedabove,link webmember2C and3Fof cone4withpedestal A13of axis2and pedestalA21of axis3;linkdiagonal webmember1B.1B with upper ball A12and A20then fasten.Link diagonal webmember2C.3F.1B.1B ofcone5withpedestalA13of axis4,pedestalA13of axis5andupper ball A12.A12then fasten.按照下弦杆件安装图将下弦球依次用下弦杆1U及4根1V连接；在下弦球上依次安装下弦杆4A及3Q。 Link lower ball with lower chord1U and four1V aordingto installation drawing of lower chord;install lower chord4Aand3Q on lower ball.2.8.5第二层及以上各层拱形网架网格的安装。 以上是拱形网架的基本安装方法。 在掌握了这种安装方法和技巧后可以采用效率更高的中单元安装法进行施工。 第二层及以上各层拱形网架的安装即采用中拼装单元法进行安装。 此方法在地面将2*5个上弦网格安装或拼装单元。 安装方法及过程如下2.8.5Installation forthe secondand above layers of arch latticegrid Abovementioned methodisthebasic installation methodfor archlatticegrid.After mandingthismethodand skill,we couldadopt installation methodofmedium-sized unitwhichismore effectivefor construction.拼装2*5上弦网格。 见图（配合上弦杆安装图）Piece together2*5upper grid,see drawing(with installation drawingofupper chord)图（图中数字为网格序号）Drawing（number inthedrawingis gridNo.）拼装小锥体单元以下弦球B29.4个B11.C4.4个B8为节点各安装4根斜腹杆拼装10个小锥体如下a:B292F.1N.2F.2M b:B114根2M c(d):B111N.2M.1N.2M e:B111N.2M.2M.2M f:C43G.2K.1E.1K g:j:B8-2M.2M.1M.1MPiece togethersmallconeInstall4web membersonlower ballB29,four B11,C4and fourB8to piecetogether10small cones,sequence asfollows:a:B292F.1N.2F.2M b:B11Four2M c(d):B111N.2M.1N.2M e:B111N.2M.2M.2M f:C43G.2K.1E.1K g:j:B8-2M.2M.1M.1M拼装中单元将此10个小锥体依次装在2*5上弦网格上，最后再连接下弦杆。 如图所示，形成完整的拼装单元（简称中拼装单元）Piece togethermedium-sized unitInstall the10small coneson2*5grid,then linkwithlowerchord.See thedrawing,toformplete unit.中拼装单元完成后应再次对照安装图检查各杆件编号及安装尺寸无误后即可进行吊装。 After finishedinstallationofmedium-sized unit,it shouldcheck serialnumber ofallmembersand installationdimension againstinstallationdrawing,and thenstarts hoisting.中拼装单元吊装将中拼装单元整体吊起使下弦球B29.B11.落于3.4m平台上；下弦球C4.B8落于6.35平台上调整高度使下弦杆4A连接下弦球B29及B31；下弦杆3Q连接下弦球B11及A19使上弦杆3u及斜腹杆与对应的上弦球A4.A12.A20.A12连接并紧固。 注意在紧固各杆件过程中应随时调整落于平台上的下弦球的高度以保证各杆件不因受力不均而产生变形或破坏。 至此已完成了第二层及第三层上弦网架的安装。 Hoisting formedium-sized splicingunit Hoistthe wholemedium-sized splicingunitandput downlower ballB29.B11to3.4m platform;lower ballC4.B8to6.35m platformthen adjustthe heightto linklowerchord4A withlowerballB29and B31;lowerchord3Q withlowerballB11and A19and linkupper chord3U and diagonal webmemberwithupperballA4.A12.A20.A12thenfasten.Attention:it shouldadjust heightof thelowerballthat downto theplatform duringprocess offastening allmembers to makesurethe memberswouldnot be transformed or destroyed安装第4层第5层上弦网架及以上各层网架按照上述的步骤和方法根据安装图的要求依次安装第2个2*5网格中拼装单元、第3个中拼装单元。 注意每次中拼装单元完成以后均应仔细对照安装图检查各个球.杆件的编号有无错误确认无误以后方可进行吊装。 Install theforth-fifth andabovelayeroflatticegrid.Install thesecond medium-sized splicingunit of2*5grid andthe thirdmedium-sized splicingunit aordingto themethodandsequenceof.Attention:it shouldcheck numberof everyball andmember againstinstallationdrawingcarefully afterfinished eachmedium-sized splicingunit,only whenall numbersareright,it couldstarts hoisting.2.8.6合龙门拱形网架从两侧（A轴.B轴）各安装14层后将进行最后的合龙门。 其方法和过程如下2.8.6Closure Installarchlatticegrid fromtwo sidesto14layers(axis AandB)then closure,installationmethodandsequenceasfollows:先拼装小锥体以下弦球A7及4个A1b为节点与斜腹杆（1H.1Q）拼装5个小锥体。 Piece togethersmallcone Link lowerballA7andfourA16with diagonalweb members(1H.1Q),forming5small cones.11111111125图安装小锥体锥体1的斜腹杆1H分别与上弦球A1.A2连接，1Q分别与上弦球A10.A11连接，锥体25的腹杆1Q的上端分别与上弦球A10.A11连接。 注意小锥体安装时可能会因拱形网架的安装积累误差或因安装时支撑等原因造成连接不上，此时应将网架轻轻吊起调整支撑垫，即可连接。 按同样的方法安装上弦杆及下弦杆。 Install smallconeLinkdiagonalwebmember1H ofcone1withupperballA1,A2,1Q withupperballA10,A11,anddiagonalwebmember1Q ofcone25withupperballA10.A11.Attention:because ofaberration orsupport reason,maybe smallcone could not belinked.It canhoist latticegrid to adjust support pad then link smallcone.所有上弦杆及下弦杆安装后应逐一检查并紧固。 至此第一段（1轴6轴）拱形网架已全部安装完成，此时应作最后一次检查杆件有无变形.所有螺栓是否已全部紧固。 逐步撤去所有下弦球的支撑或垫使拱形网架仅由支座支撑。 It shouldcheck andfasten allupperandlower chordsafter installationThus the first phase(axis16)ofarchlatticegridhasbeenfinished,then checkfor lasttime:membersaretransformedor not andbolts havebeen fastenedornot.Take allsupportpadoflowerball awayonly leftpedestal for support.2.8.7滑移2.8.7Slip铺设滚针或承载小车仅有滑移轨道还不能实行网架顺畅滑移，还需在支座下铺设滚针或承载小车。 铺设滚针的方法是较原始的滚动方法。 即在每个支左下放置圆棒作为滚动体牵拉网架向前移动。 如图所示Lay needleroller orload-bearing carMake slippingsmoothly,only dependson chuteis notenough,it alsoneeds needleroller orload-bearing car.滚针牵拉孔滑移方向槽钢支座PedestalSlipping DirectionNeedle RollerTowingHole BoxIron一般使用20的圆钢当作滚针即可。 长度与支座底板宽度相当。 Generally,20round barcould bethe needleroller,length isequal towidth ofsupport baseplate.承载小车代替滚针能使网架的滑移更顺畅也更容易控制。 此法需要制作足够的专用承载下车。 如图所示If insteadload-bearing carof needleroller,it couldmake slippingoflatticegrid smootherand easiercontrol.It needsto makeenough load-bearing carsfor thismethod.See thedrawing:槽钢牵拉孔支座Pedestal滑移方向Slipping DirectionBoxIronTowing Hole承载小车的车轮一般用204轴承即可。 上述两种滑移方法可根据施工现场的条件选用，但须注意每个支座下均应放置滚针或小车。 牵引网架用的手拉葫芦一般5t10t即可满足。 注意事项a:牵引时两侧必须同步用力均匀不可使网架产生蹿动。 b:滑移过程中每个支座处应有人监控防止发生意外。 204bearing axlecouldbewheel ofload-bearing car.It couldchoose anyoneof thetwo methodsabove mentionedaordingtosite condition,but attention:lay needleroller orcar underevery pedestal.Chainblockwith510tfortowing latticegrid Attention:a.it musttow two sides oflatticegridatthesametime.b.it shouldassign peopleto superviseat eachpedestal duringslipping to avoid aident.安装拉索为了防止拱形网架支座上的水平推力过大而造成滑移困难，甚至轨道侧翻，应在网架滑移出安装平台一半时,在网架上安装拉索（张紧钢索）以清除水平推力。 如图2.7所示Install bracing cable It should installbracingcable(tension steelcable)while latticegrid moveout platformfor halftoavoidslip difficultlycaused byso greatimpulse force.See drawing.3支座就位当网架滑移至既定位置时使支座上的地脚孔与地脚螺栓对正,可使用吊车依次将网架一侧的支座轻轻吊起,撤去轨道,将支座落于地脚螺栓上,装上垫板,套上地脚螺母。 需要注意的是在53.84m跨的网架滑移到位时，C轴的支座由于61.93m跨网架的形影响无法使用吊车，可使用把杆或三角架将网架吊起就位。 支座上的地脚螺母全部紧固后即可拆除张紧钢索。 以上是拱形网架第一段滑移安装的方法和过程。 Take pedestalto assigned position While latticegridslip to the assignedposition,fit foundationbolt intofoundationbolthole.Hoist oneside of