基于对最不利截面的应力分析，提出了一种简便、快速的悬臂长度计算方法。
Based on the stress analysis on the critical section, this paper presents a simple calculation method.
对接口部分和接长杆而言，特别重要的是径向摆动精度、悬臂长度、振动性能和可换性。
The interface part and extension rod, particularly important is the radial run-out accuracy, cantilever length, vibration performance and replaceable.
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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