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。

During construction of high formwork support frame, collapse accident usually occurs because of cantilever length of adjustable jacking of steel tubular scaffold with couplers.

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通过对扣件式钢管支模架体系设计与施工中几个问题的讨论，以及模板支撑架的计算与立杆长度取值，提出模板工程设计与施工应注意的问题和对规范相关条文的修改建议。

This article discusses several issues in the design and construction of fastener-type steel-tube die support system, the calculation of die support and the determination of vertical pole's length.

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