| 摘要 |
<p>PURPOSE:To form members of a roof frame into parts which can be manufactured at a factory. CONSTITUTION:A main beam R and two roof inclined members are laid in a horizontal plane, which are temporarily set in the form of a triangle, and an auxiliary beam 7 and a king post 8 are put into between a pair of horizontal intermediate members 5 and a pair of inclined intermediate members 6 and temporarily laid, and a fourth member 4 is temporarily laid between the auxiliary beam 7 and two third members 3 of the roof inclined member. The members are connected together to form a roof frame unit, which unit is lifted by means of a lifting means.</p> |
