[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feENII_Fgh95pzzzXXHlfmy0NtsPrv7W7rkH96ICPhXE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":18,"related":19,"source":28,"type":29},[],"2025-12-04 09:19:56",249954179,[8,9,10],"刚度","强度","挠度",{"count":12,"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},29,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_46894075","2 扶梯导轨、桁架、梯级、梳齿结构(2025)","是抵抗弹性变形的能力",[20,30,38,46,54,62,70,79,88,91],{"answer":21,"createTime":5,"id":22,"options":23,"question":27,"source":28,"type":29},[],249954171,[24,25,26],"扶手","出入口","梯级","梳齿板装设在扶梯的( )","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":37,"source":28,"type":29},[],249954172,[34,35,36],"扶手上","梯级下部","出入口处","楼层板装设在扶梯的( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":45,"source":28,"type":29},[],249954173,[42,43,44],"4个主轮","4个副轮","2个主轮和2个副轮","自动扶梯的梯级是特殊结构形式的四轮小车,有( )",{"answer":47,"createTime":5,"id":48,"options":49,"question":53,"source":28,"type":29},[],249954174,[50,51,52],"6","10","20","为了避免金属桁架挠度超出最大限度值,当自动扶梯提升高度超过( )m时,需在金属桁架与建筑物之间安装中间支承",{"answer":55,"createTime":5,"id":56,"options":57,"question":61,"source":28,"type":29},[],249954175,[58,59,60],"一","二","三","小高度自动扶梯一般只需增设( )个中间支承",{"answer":63,"createTime":5,"id":64,"options":65,"question":69,"source":28,"type":29},[],249954176,[66,67,68],"1\u002F750","1\u002F1000","1500","按照国家标准的规定:自动扶梯根据5 000 N\u002F㎡ 的载荷计算或实测的最大挠度,不应超过支承距离的( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":28,"type":29},[],249954177,[74,75,76,77],"主轮","副轮","主轮导轨","副轮导轨","与梯级链条铰接在一起的是梯级的( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":28,"type":29},[],249954178,[83,84,85,86],"内六角钥匙","三角钥匙","T型扳手","压板(松闸扳手)","楼层盖板的拆装工具是( )",{"answer":89,"createTime":5,"id":6,"options":90,"question":18,"source":28,"type":29},[],[8,9,10],{"answer":92,"createTime":5,"id":93,"options":94,"question":98,"source":28,"type":29},[],249954180,[95,96,97],"30","35","40","根据国标要求,梳齿水平倾角要求&le;( ) ̊"]