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ID:6089968
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时间:2018-01-02
《脚手架材料标准(欧标)中英文》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、4Materials材料4.1General总体要求MaterialsshallfulfiltherequirementsgiveninEuropeanStandards,wheredesigndataareprovided.材料应该满足欧标中设计的数据及要求。InformationforthemostcommonlyusedmaterialsisgiveninprEN12811-2.Materialusedshallbesufficientlyrobustanddurabletowithstandnormalworkingconditions.常用的材料信息在prEN12811-2.中
2、可以查询到。所使用的材料必须结实耐用以支持一般的作业环境。Materialsshallbefreefromanyimpuritiesanddefects,whichmayaffecttheirsatisfactoryuse.材料不得有杂质或任何缺陷,否则会影响其完整的使用4.2Specificmaterialrequirements特定材料的使用要求4.2.1Steel钢4.2.1.1General总体要求SteelsofdeoxidationtypeFU(rimmingsteels)shallnotbeused.不得使用脱氧钢类型(沸腾钢)4.2.1.2Loosetubes分支保护管L
3、oosetubestowhichitispossibletoattachcouplerscomplyingwithprEN74-1(i.e.nominal48,3mmoutsidediameter)shallhaveaminimumnominalyieldstrengthof235N/mm²andaminimumnominalwallthicknessof3,2mm.NOTELoosetubesareusuallyfoundintubesandcouplersscaffoldsbutcanalsobeusedinfaçadescaffoldmadeofprefabricatedcompo
4、nentse.g.totieaworkingscaffoldtothefaçade分支连接保护管应遵循prEN74-1(即:额定48.3mm外径)最小额定屈服强度235N/mm2最小额定壁厚3.2mm4.2.1.3Tubesforprefabricatedcomponentsforscaffoldsystems脚手架系统的预制部件的管子(EN12810-1)FortubesincorporatedinprefabricatedcomponentsforscaffoldsystemsaccordingtoEN12810-1ofnominaloutsidediameterof48,3mmth
5、especificationsofEN12810-1apply.TubesshallnotbeindentedbeyondthelimitsinprEN74-1whencouplersareattached.Tubesofexternalnominaldiameterdifferentfromtherangeof48,3mm,otherthansideprotection,shallhavethefollowingnominalcharacteristics:-wallthickness≥2,0mm-yieldstress,ReH≥235N/mm2-elongation,A≥17%额定外
6、径48.3出侧边保护以外的外接管子的外径不同于48.3mm这个范围,应满足以下额定标准:壁厚大于等于2.0mm屈服强度大于等于235M/mm2延伸率大于等于17%4.2.1.4Sideprotection侧面保护Itemsusedexclusivelyforsideprotection,otherthantoe-boards,shallhaveaminimumnominalwallthicknessof1,5mm.Fortoeboardstheminimumnominalwallthicknessshallbe1,0mm.Alesserthicknessmaybeusediftheser
7、viceabilityandloadbearingcapacityisensuredforinstancebytheuseofstiffeningsections,bracingorshapingofthecrosssection.除踏脚板以外的侧部保护应具备最小额定壁厚1.5mm踏脚板的最小额定壁厚为1.0mm4.2.1.5Platformunits平台单元Platformunitsandtheirimmediatesupport
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