台州某综合楼落地式、外挑式脚手架施工方案

'difficult,nothating;blueprints,notrhetoric;wordsandsimple,butfulloflove,truth,passion,entrepreneurialpassion.　　Takethisopportunity,myinspirationalquotesLiDazhao"sclassic"ironspecialiseinupliftingblendwiththearticle"gaveeveryone,withaviewonhowtodowellunderthenewsituationoftownshipandvillageleadersinspireandhelp,andalsosharewithyou.Agoodplaytocreateironshouldersstrongarms,toassumetheburdenbepassed;onlyspecificqualities,willitbepossibleinspecificareastocreateaworld.　　Inmyview,villagechiefsinthenewsituation,wemustfirsthavefivebasicquality.Oneambitionistopioneer."Whoishandsome."Peopleonlyhigh-mindedcanstimulatetheflowofmomentumtobecomebraveandpersistent,becomequietandpowerful.Townshipandvillageparty"leaders",withintheirrespectivejurisdictions,politicalstabilityandeconomicandsocialdevelopmentissues,decisionsandorientationdependstoalargeextentbecauseofyour.Everybodyinvillagechiefsandthepositions,boththetrustofthemasses,theOrganization"strust,moreabilitytoyou,fullyaffirmedthemoralandotherqualities.　　Therefore,wemustalwaysmaintainthehistoricalmissionandsocialresponsibility,andouridealtreerootedinthehardworkofthesoil,withindomitablespirit,indomitablecouragetoopenupanewsituationofvillagesandtowns.Tohaveafeelingofclosenesstothesecond."Thepeopleandcountry."Ourbusinessfoundationinthepeople"sbloodinthepeoplepowerpeople.Advanceddecisionsofthepartycadrestothefeelingsofthepeopleisaneternaltheme.FanZhong-yan,called"first,andenjoycomfortaboutothers",ZhengBanqiao"salsowrotea"YaChailaylisteningtotherustlingofbamboo,thesuspectissuffering.CaoCountyofficials,littlemy,atotalturnoff.　　"Oldoffeudalofficialevenhassofeelings,aloneweisto"serving"forpurposesofpeopleservantdoes?wemoreshouldalwaysholdwithonpeopleofdeepfeelings,heartDepartmentmassesofleadingvisitedtea,caremassesofemotionsthoughtscomplained,alwaysinsistedputmassesofinterestsputinfirst,consciouslyfromitselfdoup,fromsmalldoup,frommassesmostcare,andmostdirectly,andmostrealityofinterestsproblemgrabbed,realdoloveforpeoplebyDepartment,andrightforpeoplebywith,andLeeforpeoplebyconspiracyto.Threewiththefameofmind."Non-indifferentnotinsistyourdream,withoutserenitynotgofar."Ascensiontofameismorality,isthesublimationofthesoul.AsTownshipandvillage,besuretomaintainanormalstateofmind,establishacorrectviewpointonpower,positionandvaluesandOutlook,asfameislightlikewater,depending...50km,alsoredandlikehundredsofthousandsoftheKMTmilitarycombat,buthewentontocollectavarietyofnewspapersandmagazines,andthenraceagainsttimetoporeover.Aslongasthestudyofmind,itisnotnecessarytocometothelibrary,workshops,intothevillages,peoplelearnedfarmingtechniques,problem-solvingmethods,participationin目录第一章工程概况2第二章设计方案2第三章材料要求8第四章搭设8第五章拆卸10conferences,learnedsuperiorspolicies;reports,youcanlearntodealwithproblems,art,justwantedtolearn,tolearnatanytime.Tocontinuouslyexpandthescopeofthestudy.Thecomplexityandcomprehensivenessofourwork,decidedtonotonlydowewanttobe"professionals",orif"generalists",todabbleindifferentareasofknowledge.Masteryofknowledgenotonlytohaveknowledgetorationalanalysis.Thisonrequirementswe,notonlytolearningnationalofroute,andapproach,andpolicy,alsotolearningnationaloflegal,andregulations;notonlytowithpoliticaltheoryarmedmind,alsotowitheconomictheoryguidework;notonlytoreadhistory,alsotoreadhistory;notonlytoabsorptionSMofmirror,alsotogetsisofroad;notonlytofromlocallearn,alsototooutsidelearn;notonlytotobookslearn,alsotofieldstudylearn.　　Therefore,Iwouldencourageyou,andmoretotheoutsideworldwhenIhavetimetotakealookat,takeastroll,outsidedevelopments,learnotherpeople"sdevelopmentapproach,andthencomebacktoguideourwork.Second,wemustthink."Learningwithoutthoughttoovershadow,thinkingwithoutlearningisperilous."Wewanttofosterthecharacterofadvancingwiththetimes,forgeahead,oftenreflectthemselvesinadaptingtothenewsituationonwhethertherearedelays,haveanythingtofearinthereformandinnovation,whetherintermsofacceleratingthedevelopmentofarelaxation,keeppromisingStateofmind.Inordertodoinvestigations,investigationsistheroadtoheaven,Goddisposesofthebase.Towantstorealheardtruth,andjusticetotruth,andgettruth,receivedeffectiveness,onmustin-depthactual,andoutreach,andin-depthmasses,worshipmassesforDivision,andmassesheart,withmasseswithdiscussioneveryonecareofproblem,listeningtheyofcalls,understandtheyofmood,feeltheyofsuffering,summarytheyofexperience,concentratedtheyofwisdom,especiallyonmassesmosthope,andmosturgent,andmostworries,andmostcomplainedofhot,anddifficultiesandfocusproblem,moretoactiveresearch,caughtnotput.Daretoinnovate,inourwork,oftenremain"theoldwaydoesn"twork,thenewapproachwouldnot"situation,thereason,thekeyisthatmanypeopleknowthatcopyingotherpeople"sideas,mechanically,usingsomeoneelse"soldways.Tochangethispredicament,requiresustobreaktheshacklesoftraditionalconceptstoovercomeconservative,conformist,goodatfindingnewproblemsandtoacceptnewthings,summarizenewexperience,newideas,developingnewprogrammesandMaverick,anewapproachtosolveproblems,speedupdevelopment.Especiallyinimplementsuperiorpolicyspiritofprocessinthe,bothimplementation,andcannotmechanically,totoextraordinaryofcourageanddevelopenterprisingofspirit,putflexibilityandprinciplecombinedup,putsuperiorofspiritandlocalrealitycombinedup,Yongconspiracytobreakthroughofpolicy,andexerciseinnovationoflift,developedoutdevelopmentworksof,andgrass-rootswelcomesof difficult,nothating;blueprints,notrhetoric;wordsandsimple,butfulloflove,truth,passion,entrepreneurialpassion.　　Takethisopportunity,myinspirationalquotesLiDazhao"sclassic"ironspecialiseinupliftingblendwiththearticle"gaveeveryone,withaviewonhowtodowellunderthenewsituationoftownshipandvillageleadersinspireandhelp,andalsosharewithyou.Agoodplaytocreateironshouldersstrongarms,toassumetheburdenbepassed;onlyspecificqualities,willitbepossibleinspecificareastocreateaworld.　　Inmyview,villagechiefsinthenewsituation,wemustfirsthavefivebasicquality.Oneambitionistopioneer."Whoishandsome."Peopleonlyhigh-mindedcanstimulatetheflowofmomentumtobecomebraveandpersistent,becomequietandpowerful.Townshipandvillageparty"leaders",withintheirrespectivejurisdictions,politicalstabilityandeconomicandsocialdevelopmentissues,decisionsandorientationdependstoalargeextentbecauseofyour.Everybodyinvillagechiefsandthepositions,boththetrustofthemasses,theOrganization"strust,moreabilitytoyou,fullyaffirmedthemoralandotherqualities.　　Therefore,wemustalwaysmaintainthehistoricalmissionandsocialresponsibility,andouridealtreerootedinthehardworkofthesoil,withindomitablespirit,indomitablecouragetoopenupanewsituationofvillagesandtowns.Tohaveafeelingofclosenesstothesecond."Thepeopleandcountry."Ourbusinessfoundationinthepeople"sbloodinthepeoplepowerpeople.Advanceddecisionsofthepartycadrestothefeelingsofthepeopleisaneternaltheme.FanZhong-yan,called"first,andenjoycomfortaboutothers",ZhengBanqiao"salsowrotea"YaChailaylisteningtotherustlingofbamboo,thesuspectissuffering.CaoCountyofficials,littlemy,atotalturnoff.　　"Oldoffeudalofficialevenhassofeelings,aloneweisto"serving"forpurposesofpeopleservantdoes?wemoreshouldalwaysholdwithonpeopleofdeepfeelings,heartDepartmentmassesofleadingvisitedtea,caremassesofemotionsthoughtscomplained,alwaysinsistedputmassesofinterestsputinfirst,consciouslyfromitselfdoup,fromsmalldoup,frommassesmostcare,andmostdirectly,andmostrealityofinterestsproblemgrabbed,realdoloveforpeoplebyDepartment,andrightforpeoplebywith,andLeeforpeoplebyconspiracyto.Threewiththefameofmind."Non-indifferentnotinsistyourdream,withoutserenitynotgofar."Ascensiontofameismorality,isthesublimationofthesoul.AsTownshipandvillage,besuretomaintainanormalstateofmind,establishacorrectviewpointonpower,positionandvaluesandOutlook,asfameislightlikewater,depending...50km,alsoredandlikehundredsofthousandsoftheKMTmilitarycombat,buthewentontocollectavarietyofnewspapersandmagazines,andthenraceagainsttimetoporeover.Aslongasthestudyofmind,itisnotnecessarytocometothelibrary,workshops,intothevillages,peoplelearnedfarmingtechniques,problem-solvingmethods,participationin工程概况本工程为***质量技术监督检测综合大楼工程，建筑形状规则，都呈长方形。整个工程分为南北主楼、裙房、附楼。设计方案本工程裙房、附楼和北楼标高15.000米以下采用落地式双排钢管脚手架，立杆采用φ48×3.5钢管。脚手架的搭设高度南楼为24.000米（六层），裙房为14.6米（三层），附楼为8.4米（二层）。脚手架步距底部高度为2米，其余为1.8米，立杆纵距为1.8米（在北楼立杆纵距采用1.5米,排距为1.05米），排距为0.8米。连墙件竖向间距为3.6米，水平间距为4.5米。北楼为50.00米（十二层），15.00米以上采用悬挑脚手架，分两次挑，五层一挑。第一挑从标高15.00米（第五层）到标高32.50米，，第二挑从标高为32.50米（第十层）挑至标高为50.00米。脚手架步距为1.8米，立杆纵距为1.5米，排距为1.05米。挑架采用选16＃工字钢，架子立杆位于16#工字钢上，为稳定起见，在工字钢先焊一短钢筋（Φ16），立杆插在钢筋头上。挑架一端固定在楼板上，另一端用14#钢索绳拉在上一层梁吊钩上（吊钩及环筋为φ16）。主梁挑架间距为1.5米。落地式脚手架计算如下：以南楼脚手架计算为例。（一）、纵向、横向水平杆的计算：本工程脚手架施工荷载由纵向水平杆传递给立杆，当排距为0.8米，施工均布荷载Q=2.0KN/m2时，操作层横向水平杆间距取立杆纵距的一半为0.9米，纵、横向水平杆的抗弯刚度、抗弯强度及扣件的抗滑移均满足要求，不需要进行计算。（二）、立杆稳定验算：本工程脚手架以相等的步距、柱距、排距、连墙件间距搭设，底层的立柱段所受压力最大，为脚手架的验算部位。1、脚手架结构自重产生的轴心压力查脚手架计算手册，一个柱距范围内每米高脚手架结构自重产生的轴心压力标准值：GK=0.125KN/M，则24米高脚手架结构自重产生的轴心压力标准值为NGK=0.125×24=3KN。2、脚手架活载产生的轴心压力本工程脚手板按6层算，查的脚手板产生的轴心压力为NQ1K=1.823KN脚手架的防护材料产生的轴心压力为NQ2K=0.228KN按装饰阶段两层同时作业时，施工荷载QK=2×2.0=4KN，查得施工荷载产生的轴心压力为NQ3K=4.05KN，则总的轴心压力为NQK=1.823+0.228+4.05=6.101KN3、立柱段的轴心压力设计值：N=1.2NGK/K1+1.4NQK=1.2×3/0.80+1.4×6.101=13.04KN4、立柱稳定性验算根据N≤ψAfc立柱截面积A=4.89cm，回转半径i=1.58cm，钢材抗压强度设计值fc=205N/mm2，立柱计算长度系数μ=1.55，立柱长细比λ=μh/i=1.55×180/1.58=177查得稳定系数ψ=0.227，则ψAfc=0.227×4.89×100×0.205=22.75KNN=13.04KN＜22.75KN，立杆稳定性满足要求。根据现场钢管的抽查,钢管的壁厚不一（3.0、3.1、3.2、3.3、3.4、3.5）与设计钢管的壁厚3.5有差距，为安全起见，钢管采用φ48×3.0进行验算：按N≤ψAfc立柱截面积A=4.24cm，回转半径i=1.595cm，钢材抗压强度设计值fc=205N/mm2，立柱计算长度系数μ=1.55，立柱长细比λ=μh/i=1.55×180/1.595=175conferences,learnedsuperiorspolicies;reports,youcanlearntodealwithproblems,art,justwantedtolearn,tolearnatanytime.Tocontinuouslyexpandthescopeofthestudy.Thecomplexityandcomprehensivenessofourwork,decidedtonotonlydowewanttobe"professionals",orif"generalists",todabbleindifferentareasofknowledge.Masteryofknowledgenotonlytohaveknowledgetorationalanalysis.Thisonrequirementswe,notonlytolearningnationalofroute,andapproach,andpolicy,alsotolearningnationaloflegal,andregulations;notonlytowithpoliticaltheoryarmedmind,alsotowitheconomictheoryguidework;notonlytoreadhistory,alsotoreadhistory;notonlytoabsorptionSMofmirror,alsotogetsisofroad;notonlytofromlocallearn,alsototooutsidelearn;notonlytotobookslearn,alsotofieldstudylearn.　　Therefore,Iwouldencourageyou,andmoretotheoutsideworldwhenIhavetimetotakealookat,takeastroll,outsidedevelopments,learnotherpeople"sdevelopmentapproach,andthencomebacktoguideourwork.Second,wemustthink."Learningwithoutthoughttoovershadow,thinkingwithoutlearningisperilous."Wewanttofosterthecharacterofadvancingwiththetimes,forgeahead,oftenreflectthemselvesinadaptingtothenewsituationonwhethertherearedelays,haveanythingtofearinthereformandinnovation,whetherintermsofacceleratingthedevelopmentofarelaxation,keeppromisingStateofmind.Inordertodoinvestigations,investigationsistheroadtoheaven,Goddisposesofthebase.Towantstorealheardtruth,andjusticetotruth,andgettruth,receivedeffectiveness,onmustin-depthactual,andoutreach,andin-depthmasses,worshipmassesforDivision,andmassesheart,withmasseswithdiscussioneveryonecareofproblem,listeningtheyofcalls,understandtheyofmood,feeltheyofsuffering,summarytheyofexperience,concentratedtheyofwisdom,especiallyonmassesmosthope,andmosturgent,andmostworries,andmostcomplainedofhot,anddifficultiesandfocusproblem,moretoactiveresearch,caughtnotput.Daretoinnovate,inourwork,oftenremain"theoldwaydoesn"twork,thenewapproachwouldnot"situation,thereason,thekeyisthatmanypeopleknowthatcopyingotherpeople"sideas,mechanically,usingsomeoneelse"soldways.Tochangethispredicament,requiresustobreaktheshacklesoftraditionalconceptstoovercomeconservative,conformist,goodatfindingnewproblemsandtoacceptnewthings,summarizenewexperience,newideas,developingnewprogrammesandMaverick,anewapproachtosolveproblems,speedupdevelopment.Especiallyinimplementsuperiorpolicyspiritofprocessinthe,bothimplementation,andcannotmechanically,totoextraordinaryofcourageanddevelopenterprisingofspirit,putflexibilityandprinciplecombinedup,putsuperiorofspiritandlocalrealitycombinedup,Yongconspiracytobreakthroughofpolicy,andexerciseinnovationoflift,developedoutdevelopmentworksof,andgrass-rootswelcomesof difficult,nothating;blueprints,notrhetoric;wordsandsimple,butfulloflove,truth,passion,entrepreneurialpassion.　　Takethisopportunity,myinspirationalquotesLiDazhao"sclassic"ironspecialiseinupliftingblendwiththearticle"gaveeveryone,withaviewonhowtodowellunderthenewsituationoftownshipandvillageleadersinspireandhelp,andalsosharewithyou.Agoodplaytocreateironshouldersstrongarms,toassumetheburdenbepassed;onlyspecificqualities,willitbepossibleinspecificareastocreateaworld.　　Inmyview,villagechiefsinthenewsituation,wemustfirsthavefivebasicquality.Oneambitionistopioneer."Whoishandsome."Peopleonlyhigh-mindedcanstimulatetheflowofmomentumtobecomebraveandpersistent,becomequietandpowerful.Townshipandvillageparty"leaders",withintheirrespectivejurisdictions,politicalstabilityandeconomicandsocialdevelopmentissues,decisionsandorientationdependstoalargeextentbecauseofyour.Everybodyinvillagechiefsandthepositions,boththetrustofthemasses,theOrganization"strust,moreabilitytoyou,fullyaffirmedthemoralandotherqualities.　　Therefore,wemustalwaysmaintainthehistoricalmissionandsocialresponsibility,andouridealtreerootedinthehardworkofthesoil,withindomitablespirit,indomitablecouragetoopenupanewsituationofvillagesandtowns.Tohaveafeelingofclosenesstothesecond."Thepeopleandcountry."Ourbusinessfoundationinthepeople"sbloodinthepeoplepowerpeople.Advanceddecisionsofthepartycadrestothefeelingsofthepeopleisaneternaltheme.FanZhong-yan,called"first,andenjoycomfortaboutothers",ZhengBanqiao"salsowrotea"YaChailaylisteningtotherustlingofbamboo,thesuspectissuffering.CaoCountyofficials,littlemy,atotalturnoff.　　"Oldoffeudalofficialevenhassofeelings,aloneweisto"serving"forpurposesofpeopleservantdoes?wemoreshouldalwaysholdwithonpeopleofdeepfeelings,heartDepartmentmassesofleadingvisitedtea,caremassesofemotionsthoughtscomplained,alwaysinsistedputmassesofinterestsputinfirst,consciouslyfromitselfdoup,fromsmalldoup,frommassesmostcare,andmostdirectly,andmostrealityofinterestsproblemgrabbed,realdoloveforpeoplebyDepartment,andrightforpeoplebywith,andLeeforpeoplebyconspiracyto.Threewiththefameofmind."Non-indifferentnotinsistyourdream,withoutserenitynotgofar."Ascensiontofameismorality,isthesublimationofthesoul.AsTownshipandvillage,besuretomaintainanormalstateofmind,establishacorrectviewpointonpower,positionandvaluesandOutlook,asfameislightlikewater,depending...50km,alsoredandlikehundredsofthousandsoftheKMTmilitarycombat,buthewentontocollectavarietyofnewspapersandmagazines,andthenraceagainsttimetoporeover.Aslongasthestudyofmind,itisnotnecessarytocometothelibrary,workshops,intothevillages,peoplelearnedfarmingtechniques,problem-solvingmethods,participationin查得稳定系数ψ=0.232，则ψAfc=0.232×4.24×100×0.205=20.16KNN=13.04KN＜20.16KN，钢管采用φ48×3.0立杆稳定性也满足要求，不需要对脚手架立杆进行加密。（三）、连墙件的稳定承载力验算：本工程脚手架连墙件采用φ48×3.0钢管，一端用扣件同立杆连接，另一端采用四个膨胀螺丝打入混凝土柱，外边铆住一块100×100×8的钢板同连墙件焊接。连墙件的计算长度取离墙的距离，既L=300，因此长细比λ=30/1.58=19，查得ψ=0.949，则N=ψAfc=0.949×489×0.18=83.5本地基本风压取wo=0.45KN/cm2，查得双排脚手架的风荷体型系数μs=0.184，μz=1.36，风荷载标准值wk=0.07μsμzwo=0.7×0.184×1.36×0.45=0.8,连墙件所受水平力设计值Nh=1.4wkAw+3=1.4×0.8×3.6×5.4+1.4=5.18。所以N=83.5＞5.18，其稳定承载力足够。悬挑脚手架计算书：1、悬挑设计荷载：脚手架悬挑五层，设计高度H=17.5m如简图一、二所示，计算每根悬挑槽钢上设计荷载：图一立管自重：38.4×17.5×4=2688N水平杆自重：38.4×（4×3+2×1.2）×11=6083N竹笆脚手片自重：350×1×3×11=11550N扶杆、挡脚杆和安全网自重：42×3×2×11=2772N扣件自重：14.6×（8+18.4）×11=4240N16#工字钢自重：205×1.5=307N固定总荷载Gk=27640N=27.6KN2施工活荷载按考虑两层装修荷载计算取2KN/m，则G=2×2×1×3=12KNq考虑固定荷载系数1.2,活荷载系数1.4,则设计荷载G=1.2×27.6+1.4×12=49.92KN2、16＃工字钢验算：如图三所示计算简图，F=0.5G=24.96KN，FFM=6.24KN·m中MB=6.99KN·mMC=5.32KN·m图三强度验算：3MX=MMAX=6.99KN·m，Wnx=141×103mm,rx=1.05则σ=MX/rxWnx=6.99×106/1.05×141×103=47.2N/mm2