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1Reinforcedconcreteworks钢筋混凝土施工TrainingNo09培训编号：09贵广高铁Guiyang–GuangzhouPDLRailway2THEMES主题•ThistrainingistogiveguidelinesandteachingtheLocalsupervisoronconstructionmethodthatcouldpracticeontheongoingconstructionworksoftheGuiyang-guangzhourailwayproject这次培训的目的是在施工方法上对监理进行指导和教学，以便在贵广高铁项目接下来的施工中加以实践。FORLSTHRUFQR外方质量代表对中方监理3•GUIDELINESANDTOPICSOFTHETRAININGFORTHESUPERVISORONBRIDGES培训针对桥梁施工的监理4Reinforcedconcreteworks钢筋混凝土施工•PierFoundationorPlateHead桥墩基础或承台•Piercolumns桥墩•Columnheadcaps墩帽5ForinstallationofReinforcedsteelbars加固钢筋的安装•Sequenceofwork:工序：•Checkandstudythestructuraldetailsanddrawingsofthestructure.确认、学习钢筋笼的结构细节和结构图；•Checkthefabricatedsteelbarsrequiredasitsnumbers,measurementsanddiameterneeded.检查钢筋笼钢筋数量、规格、及直径；•Steelbarstobeinstalledshouldbecleanedfromrustanddirt.必须清除钢筋上的锈迹、污垢；6•Establishtheexactlocationofthestructurebythesurveyteam.由测量队伍确定结构的确切位置•Structuretobeinstalledsteelbarsshouldbecleanedfromdirt,mud,wasteconcreteoranyothermaterials.必须清理要架设钢筋的结构上的污垢、淤泥、废弃混凝土及其他材料；•Properchippingofconstructionjointspriortostartonconnectingstructure.在连接结构之前，要对施工缝认真凿毛。•Properfixingandspacingontheinstallations.钢筋安装要牢固，间距要合适；7Forinstallationofreinforcedsteelbars加固钢筋的安装•Adequateprovisionofspacersandconcretecovering.要使用足够的混凝土垫块、预留足够的混凝土保护层；•CheckingbyLocalSupervisorforitsinstalledsteelbarsbynumbers,measurements,diameterbasedontherequireddrawingsandfreefromdirtrustandtheproperconstructionjoints.监理要根据图纸对安装的钢筋的数量、规格、直径进行确认，同时确认是否除锈、施工缝是否认真凿毛。8Installedformandbottomsteelbars安装模板和底部钢筋•Whathappenedtotheconcretecovering,itismissing?混凝土保护层呢？不见了吗？•Whatwaswrongwhycannotpourleanconcrete?为什么不浇注混凝土？•Istherenoneedcleaningtheformwhentoinstall?安装模板的时候，没有必要清洗干净吗？•Whytheinstalledsteelbarsarerusting?为什么已安装的钢筋都生锈了？9Concretecastingofplatehead承台混凝土浇筑•Isthiskindofcuringworks?这是在做养护工作吗？•Propercuringworksistocontinuouslysprayingwaterorbyfloodingontopofplatehead.正确的养护方式是持续喷水，或在承台顶部用蓄水法养护。10Forinstallationofforms模板的安装•Sequenceofworks工序:•Checkthedetaildrawingandlayoutofthestructure.确认细节图和结构布置；•Establishtheexactlocation,alignmentandcoordinatesofthestructurebythesurveyteam.由测量队伍确立具体位置、平面及坐标；•Cleaningofformsandapplicationofformoils.清洁模板，并刷油；11•Layoutthetruelocationontheactualsitegivenbythesurvey.根据测量，在实际施工现场做正确的定位•Erectionofscaffoldingswithpropersafetyrequirements,likesafetyladders,nets,workingplatformsandsignage's.安装脚手架要满足一些安全要求,如安全梯、防护网、工作平台、标示标牌。•Installationofformsandsupportswithproperprovisionofconcretecoveringandsupervisiononliftingworks.关于模板的安装，要预留足够的混凝土保护层，要对吊装工作进行监管。12Forinstallationofforms模板的安装•Checkingandestablishthetopofconcretepouringelevationasrequiredontheconstructionjointsbythesurvey.根据测量确认和设定混凝土浇筑标高、施工缝的位置•Checkingofthestructurefrommeasurement,cleanlinessandroughnessoftheconstructionjoints,correctlocations,stabilityoftheinstalledforms,supports,concretecoveringandembedment's.从尺寸、清洁度、施工缝的粗糙度、正确的位置、模板的稳定性、支撑性、混凝土保护层和预埋度进行确认。13Installedcolumnformsonplatehead在承台上安装墩身模板•Whathappeninginthiscolumn?Thustheengineersleepwhenpouringoftheplateheadorthesurveydon’tmarkthetopelevation?这座桥墩怎么了？难道是浇筑承台的时候工程师在睡觉吗？或者是测量队伍没有标注承台顶部的标高？14Installedembedment‘sandsteelbarsoncolumnheadcap在墩帽安装预埋件和钢筋•Isthisinstallationofsteelplateandreinforcedsteelbarsasperdrawing?Gaponsteelplateandformandthesteelbarsareoutsidefromtheform?钢板和加固钢筋这样安装是符合设计的吗？为什么钢板和模板之间留有缝隙？为什么钢筋的位置已经超出了模板安装的位置？15Reinforcementconcretecastingworks混凝土浇注施工•SequenceofWorks工序：•Afterinstalledsteelbarsandformsinspectedbythelocalsupervisor,preparationofconcretecastingshouldbemade.安装完钢筋笼及模板，并由现场监理检查验收后，开始准备混凝土浇注•Checkingofworkingplatforms,laddersandnets检查施工平台、安全梯和防护网•Workabilityofthearea.检查现场可施工性；16Concretecastingworks混凝土浇筑•Goodconcreteworksbutafterwhatwillbetheproblem?,withoutcuringandcleaningofwasteconcrete?浇筑工作做的不错，但是接下来的问题是什么？没有养护吗？不清理残留的混凝土吗？17•Preparationofareasforconcretepumpanddeliverytransitmixers.准备混凝土输送泵及搅拌机•Duringconcretingthelocalsupervisorshouldcheckthefollowings:浇注过程中，现场监理需检查一下内容：1.ConcreteDeliveryonsiteifthesameasrequiredstrength.现场运送到的混凝土是否符合要求强度18Reinforcementconcretecastingworks混凝土浇注施工2.Temperature,deliverytimelimitandslumptesting.温度、运送时间上限、塌落度试验；3.Takingconcretecubessamplesandkeeponsafeplacesthatcouldnotbedisturbedormoveduringsettingtime.制作混凝土养护试块，放置在凝固期间不会受干扰和移动的地方；•Afterconcretepouringthestructureshouldbecleanedfromwasteconcreteandcuringshouldbedonethenext12hrscontinuously.浇注完成后，应该清理掉残留的混凝土，12小时后要开始持续不断的养护。19Concreterepairworks混凝土修复工作：WorkingMethod工作方法:•Inanyminorormajorconcretecracktoberepairs：混凝土养护期间，如出现裂缝、不管大小，都要进行修复；•Chippingoffthecracklineandcleanfromdustandmakeitmoist.先凿毛裂缝，清除尘土，再浇湿；•After,applicationofapprovedepoxymortarfoundationandcolumnsandforgirdersandslabsbyusinginjectionofapprovedliquefiedepoxymortar.对墩基和墩身使用环氧胶泥修复；对大梁修复也是一样，但要使用稀释环氧胶泥注入修复。20PrestressedGirderProduction预应力梁的生产•Reinforcementandconcretecasting:加固及混凝土浇筑•Installationofthesteelbarsasrequiredinthedrawing根据设计安装钢筋；•Installationofthetubesfortendonsbaseontheindicatedapproveddesignprofileofthetendons,endblocksofanchoragesandsealedofftightlyandtherequiredembedment‘s.使用镀锌管做预应力线，设计剖面图中肯定也是这样要求的，必须将锚碇严密封紧，并按要求嵌入；21Prestres