【单选题】
采用扣件式钢管支模时，立杆顶端的计算长度为___。
A. h+1.5 a
B. h+2 a
C. h+2.5 a
D. h+3.0a
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答案
B
解析
暂无解析
相关试题
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采用扣件式钢管脚手架作模板支架时，立柱底部必须设置纵横向扫地杆，纵上横下，使直角扣件扣牢。纵向扫地杆距离底座的限制高度为___
A. 200mm
B. 250mm
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多排扣件式钢管模板支架，四周应设通长竖向剪刀撑，中间纵横方向每隔___应设置一道竖向剪刀撑。
A. 4~5个立杆间距或5~7m
B. 6~8个立杆间距或7~9m
C. 8~10个立杆间距或8~10m
D. 2~4个立杆间距或2~4m
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