【单选题】【消耗次数：1】
脚手架中剪刀撑的作用是（）。
①
加强整体性
②
提高承载力
③
减少变形
④
增加美观
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相关题目
【单选题】
钢管扣件脚手架剪刀撑的设置宽度( )。
①
不应小于4跨，且不应小于6m
②
不应小于3跨，且不应小于4.5m
③
不应小于3跨，且不应小于5m
④
不应大于4跨，且不应大于6m
【单选题】
高度在24m以下的单、双排脚手架，均必须在外侧立面设剪刀撑，其规定为( )。
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两端各设一道，并从底到顶连续设置，中间每道剪刀撑净距不应大于15m
②
无论多长的脚手架只需在两端各设一道剪刀撑
③
剪刀撑不要从底到顶连续设置
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剪刀撑的设置没有规定
【多选题】
脚手架工程是指：高度超过24m的落地式钢管脚手架、（ ）、悬挑式脚手架、挂脚手架、吊篮脚手架。
①
落地式钢管脚手架
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附着式升降脚手架，包括整体提升与分片式提升
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门型脚手架
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卸料平台
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木脚手架
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钢管扣件脚手架横向斜撑设置有如下规定( )。
①
一字形、开口形双排脚手架的两端必须设置横向斜撑
②
高度24m以上的封圈形双排架除在拐角处设置外，中间应每隔6跨设置一道
③
高度在24m以下的封圈形双排架可不设置
④
高度在24m以下的封圈形双排架应在拐角处设置
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高度在24m以上的封圈形双排架仅需要在拐角处设置
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are speaking
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are/is
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At first Bob was puzzled by Virginia s waving, but then it __ his mind that she was trying to tell him something.
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