The steel formwork support with couplers is the most commonly used form in construction, and is also one of structural forms in which accidents happen mostly in construction.
扣件式钢管支模架是建筑施工最常用的支模架形式，也是建筑施工事故发生最多的结构型式之一。
During construction of high formwork support frame, collapse accident usually occurs because of cantilever length of adjustable jacking of steel tubular scaffold with couplers.
建筑模板工程施工中，特别是高大支模架体施工中，往往出现扣件式钢管架体顶部可调顶托的悬臂长度过长，导致架体坍塌事故。
Furthermore, bridging has more important use in formwork support overall stability, the layout of bridging should be paid more attention in construction.
另外，剪刀撑对模板支架整体稳定起了很大作用，施工中应重视剪刀撑的布设。
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