当前位置:考试网  > 试卷库  > 学历类  > 自考  > 自考专业(建筑工程)  > 钢结构  > 焊脚尺寸是越大越好还是越小越好?为什么?
试题预览

焊脚尺寸是越大越好还是越小越好?为什么?

查看答案
收藏
纠错
正确答案:

答:除钢管结构外,焊脚尺寸不宜大于较薄焊件厚度的1.2倍,是为了避免焊缝区的基本金属过烧,减小焊件的焊接残余应力和残余变形。焊脚尺寸也不能过小,否则焊缝因输入能量过小,而焊件厚度较大,以致施焊时冷却速度过快,产生淬硬组织,导致母材开裂,规范规定焊脚尺寸不得小于1.5,t为较厚焊件的厚度。

答案解析:

暂无解析

你可能感兴趣的试题

钢材屈服点fy的高低反应材料()

当沿受力方向的连接长度时,螺栓的抗剪和承压设计承载力均应降低,以防止()

钢材的强度指标是()

对于偏心在实轴上的格构式偏心受压构件,不必验算其弯矩作用平面外的整体稳定,但应验算单肢的稳定性;

按正常使用极限状态计算时,受弯构件要限制挠度,受拉、受压构件要限制长细比;

热门试题 更多>
试题分类: 基础知识
练习次数:2次
试题分类: 网络管理员
练习次数:0次
试题分类: 土建
练习次数:0次
试题分类: 软件测试技术
练习次数:0次
试题分类: 土建
练习次数:0次
试题分类: Python语言程序设计
练习次数:0次
DearSir/Madam, IampleasedtowritealetterofrecommendationonbehalfofSandRiveranditsCEO,Mrs.JaneKing.Iamveryfamiliarwiththecompany.Mynextbookdealswithitindetail,whichistobepublishedinautumnof2018.IamalsofamiliarwithEuropeanconsumer.AsaDutchcitizen,IhavelivedinEuropefor46yearsandstudiedEuropeanconsumerbehaviorfordecades.IbelievethatSandRiverofferssomethinguniquetotheEuropeanmarket.Ithasestablishedlong-termsupplyrelationswithherdsman(牧民)familiesandownsadvancedGermanmachinery.Thusitcombinesnaturalresourceswithmodernmanufacturingtechniques.Butequallyimportant,SandRiverworkswithmodernfashiondesignerstocreatetrulycontemporaryandappealingdesigns.Theresultisanewly-establishedcashmere(羊绒)brandthatappealstoatargetgroupofhigh-incomewomen.ImetMrs.Kingthefirsttimein2013.Sincethen,wehavemetseveraltimesandtalkedaboutSandRiver'sphilosophy,strategy,andappealtobothChineseandinternationalconsumers.Iwasstruckbyherdeepknowledgeaboutknitting(针织)technology,herenthusiasmforthebrand,andherdeepunderstandingofthecashmereshopper.Iregardherasa"womanofherword."Tosummarize,IbelieveSandRiverproductsdeserveaplaceinluxuriousEuropeandepartmentstoresandMrs.Kingisareliablepartner.Ifyouhaveanyquestions,pleasedonothesitatetocontactme.Sincerely,JoanSmith 36、JoanSmithwrotetherecommendationletteronbehalfof______. A.aDutchcitizen B.herdsmanfamilies C.theEuropeanconsumer D.SandRiveranditsCEO 37、FromtheletterwecanlearnthatSandRiver______. A.haslong-termlinkswithherdsmen B.employsmanyherdsmanworkers C.manufacturesadvancedmachines D.sellshand-madeproducts 38、Thetargetconsumersofthenewly-establishedcashmerebrandare______. A.collegestudents B.blue-colorworkers C.high-incomewomen D.averageherdsmanfamilies 39、Bysaying"awomanofherword"(Para.3),thewritermeansthatMrs.King______. A.alwayskeepsherpromise B.isagoodpublicspeaker C.knowscustomerswell D.iswelleducated 40、AsfarastheEuropeanmarketisconcerned,thewriterthinksthatSandRiverproducts______. A.arefitforsupermarketsinbigcities B.arelikelytoenjoyabigmarketshare C.willappealtodifferentkindsofcustomers D.deserveaplaceinluxuriousdepartmentstores
试题分类: 英语A级
练习次数:3次
扫一扫,手机做题