| 摘要 |
<p>PURPOSE:To obtain a safe condition, by lifting steel beams previously fitted with brackets to attach roof panels and inner scaffolds by a crane to construct steel frames and fitting the roof panels with the work on the scaffolds. CONSTITUTION:Steel beams 3a, 3b fitted with brackets to attach roof panels and inner scaffolds 4 are lifted by a crane 13 to construct steel frames. And the roof panels 6 are lifted by the crane 13 are attached to the brackets for fitting the roof panels with the work on the inner scaffolds 4. In this way, time of construction can be reduced.</p> |
