[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fIFhdJChmctLzl39aymadH0FVeRDeZz4OD0umHz5nE2E":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-07-06 16:58:26",93107058,[8,9,10,11],"钢材的塑性太低","钢材的弹性模量太高","焊接时热量分布不均","焊缝的厚度太小",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},30,"bc39caae440e8caee2cbb518ffc0aaaa","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F52b636c6c11bcf58bc1e4e3b4b38aa1c.jpg","钢结构设计原理","exam_99989645","2023春《钢结构设计原理》期末考试","产生焊接残余应力的主要因素之一是( )",[21,32,41,50,59,68,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],93107053,[25,26,27,28],"600mm","584","496mm","480mm","某侧面角焊缝长度为600mm(静载),焊脚为8mm,该焊缝的计算长度应为下列哪项( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],93107054,[36,37,38,39],"100.8kN","161.2kN","201.6kN","245.9kN","某承受轴向力的侧面角焊缝的焊缝长度为300mm,焊脚尺寸为6mm,fwf=160N\u002Fmm2,该焊缝能承受的最大动荷载为( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],93107055,[45,46,47,48],"40mm","60mm","80mm","70mm","设有一截面尺寸为100×8的板件,在端部用两条侧面角焊缝焊在10mm厚的节点板上,两板件板面平行,焊脚尺寸为6mm.为满足最小焊缝长度的构造要求,试选用下列何项数值.( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],93107056,[54,55,56,57],"tanθ≤1.5","tanθ>l.5","θ≥70º","θ<70º","不需要验算对接焊缝强度的条件是斜焊缝的轴线和外力N之间的夹角满足( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],93107057,[63,64,65,66],"I级焊缝","当焊缝与作用力间的夹角\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb493b1404fc09bb481a81de7f771e500.gif\">满足tanθ≤1.5时的焊缝","II级焊缝","A、B、C都正确","可不进行验算对接焊缝是( )",{"answer":69,"createTime":5,"id":6,"options":70,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],93107059,[75,76,77,78],"钢材的种类","应力循环次数","连接的构造细节","残余应力大小","焊接结构的疲劳强度的大小与( )关系不大",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],93107060,[84,85,86,87],"静力强度","刚度","稳定承载力","疲劳强度","承受静力荷载的构件,当所用钢材具有良好的塑性时,焊接残余应力并不影响构件的( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],93107061,[93,94,95,96],"冷却速度太快","焊件各纤维能自由变形","钢材弹性模量太大,使构件刚度很大","施焊时焊件上出现冷塑和热塑区","产生纵向焊接残余应力的主要原因是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],93107062,[102,103,104,105],"以拉应力为主","以压应力为主","包括拉、压应力","拉、压应力都很小","热轧型钢冷却后产生的残余应力( )"]