最新AWS D1.1介绍讲课稿.ppt

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1、AWSD1.1__________________________________________________AWSD1.1AmericanWeldingSociety(美国焊接协会)Thiscodecoverstheweldingrequirementsforanytypeofweldedstructuremadefromthecommonlyusedcarbonandlow-alloyconstructionalsteels.Clauses1through8constituteabodyofrule

2、sfortheregulationofweldinginsteelconstruction.Thereareninenormativeandtwelveinformativeannexesinthiscode.ACommentaryofthecodeisincludedwiththedocument.本规范包含对常用碳素钢和低合金结构钢的任何类型结构的焊接要求。第1章至第8章构成了钢结构焊接规范条例的主体。规范中载有标准性附录9则和信息性附录12则。文件还包括对规范条文的说明。AWSD1.11.Genera

3、lRequirements总则2.DesignofWeldedConnection.焊接连接的设计3.PrequalificationofWPSsWPS的免除评定4.Qualification评定5.Fabrication建造6.Inspection检验7.StudWelding螺柱焊8.StrengtheningandRepairofExistingStructures现有结构的补强与修理5.Fabrication5.1范围5.2母材5.3焊接材料的要求5.4ESW和EGW方法5.5WPS参数5.6预热和

4、层间温度5.7调质钢的焊接热输入控制5.8消除应力热处理5.9衬垫、背部保护气体或嵌条5.10衬垫5.11焊接和切割设备5.12焊接环境5.13符合设计要求5.14最小角焊缝5.15母材的准备5.16凹角5.17梁的开槽口和焊缝的穿越孔5.18定位焊缝和结构辅助焊缝5.19组装部件的拱度5.20周期载荷结构的拼接5.21变形和收缩的控制5.22接头尺寸公差5.23焊接结构部件的尺寸公差5.24焊缝剖面外形5.25塞焊和槽焊技术5.26返修5.27锤击5.28捻缝5.29电弧击伤5.30焊缝清理5.31焊缝引

5、弧板和引出板AWSD1.15.Fabrication5.26Repairs返修Theremovalofweldmetalorportionsofthebasemetalmaybedonebymachining,grinding,chipping,orgouging.Itshallbedoneinsuchamannerthattheadjacentweldmetalorbasemetalisnotnickedorgouged.Oxygengougingshallnotbeusedinquenchedandte

6、mperedsteel.Unacceptableportionsoftheweldshallberemovedwithoutsubstantialremovalofthebasemetal.Thesurfacesshallbecleanedthoroughlybeforewelding.Weldmetalshallbedepositedtocompensateforanydeficiencyinsize.焊缝金属或部分母材的清除可用机加工、打磨、铲凿或刨槽的方法进行。清除必须这样：不在邻近焊缝金属或母材上造

7、成缺口或槽痕。调质钢上严禁使用氧气刨槽。焊缝的不合格部分必须清除但不要伤及母材。焊接之前，必须彻底清洁表面。对于任何尺寸的不足必须熔敷焊缝金属加以补偿。AWSD1.15.Fabrication5.26Repairs返修5.26.1Thecontractorhastheoptionofeitherrepairinganunacceptableweldorremovingandreplacingtheentireweld,exceptasmodifiedby5.26.3.Therepairedorreplace

8、dweldshallberetestedbythemethodoriginallyused,andthesametechniqueandqualityacceptancecriteriashallbeapplied.Ifthecontractorelectstotheweld,itshallbecorrectedasfollows:除按5.26.3要求的修正外，承包商可以选择返修不合格的焊缝，或者清除整条焊缝而重