模块1 钢筋图识读

为搞好山东省交通科学研究所研发基地项目的结算审计工作,我跟踪审计部特针对本项目作如下要求,请各施工单位、供货单位遵照执行：andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)模块1钢筋图识读【学习目标】1、能辩别出各种钢筋的符号，弄清有关规范对钢筋表示方法的一般规定。2、通过梁配筋图实例的学习，理解梁钢筋图识读的方法、内容、技巧，具有识读梁配筋立面图、断面图和平法施工图的技能。3、能拓宽到具有识读其它构件（如板、柱等）配筋图的技能。对构件进行钢筋放样与加工，首先要读懂构件的钢筋配置图，为了便于识图，我国有关规范对钢筋符号、钢筋图例及表示方法作出了相应的规定，现在让我们来了解这些规定从而学会识读钢筋图。1．1钢筋符号和钢筋的一般表示法1.1.1钢筋符号在钢筋混凝土构件中，往往配有不同的钢筋级别，不同的钢筋级别用不同的符号来代表，见表1-1。表1-1钢筋符号表普通钢筋符号预应力钢筋符号热轧钢筋HPB235钢铰线1×31×7SHRB335消除应力钢丝光面螺旋肋P\HHRB400刻痕I余热处理钢筋RRB400R热处理钢筋40Si2Mn48Si2Mn45Si2CrHT可以看出，图0-1所示的梁采用了两种级别的热轧钢筋，即HPB235钢筋（）和HRB335钢筋（）。1.1.2钢筋的一般表示方法为搞好山东省交通科学研究所研发基地项目的结算审计工作,我跟踪审计部特针对本项目作如下要求,请各施工单位、供货单位遵照执行：andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)2事实上，从钢筋混凝土构件的外面是看不见内部钢筋的具体配置情况的，但为了能表达构件内部的配筋情况，我们只好假想混凝土为透明体,把内部钢筋绘制出来，这种图称为构件的配筋图。同时，为了突出表示钢筋的配置情况，在构件结构图中，把钢筋画成粗实线，构件的外形轮廓线画成细实线，在构件断面图中钢筋的截面则画成粗圆点。钢筋的一般表示方法见表1-2~表1-4。钢筋的画法见表1-5。表1-2一般钢筋序号名称图例说明1钢筋横断面2无弯钩的钢筋端部下图表示长、短钢筋投影重合时，短钢筋的端部用450斜划线表示3带半圆形弯钩的钢筋端部4带直钩的钢筋端部5带丝扣的钢筋端部6无弯钩的钢筋搭接7带半圆弯钩的钢筋搭接8带直钩的钢筋搭接9花螺丝钢筋接头10机械连接的钢筋接头用文字说明机械连接的方式（或冷挤压或锥螺纹等）表1-3预应力钢筋序号名称图例序号名称图例1预应力钢筋或钢绞线5固定端锚具2后张法预应力钢筋断面无粘结预应力钢筋断面6锚具的端视图3单根预应力钢筋断面7可动联结件4张拉端锚具8固定联结件为搞好山东省交通科学研究所研发基地项目的结算审计工作,我跟踪审计部特针对本项目作如下要求,请各施工单位、供货单位遵照执行：andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalled