| 摘要 |
<p>PURPOSE:To increase roof strength and to improve the efficiency of work execution by installing ancillary struts, shorter in length, separately from main struts at construction of a stepped roof and by constructing, at the same time, the roof with purlins and rafters installed to the ancillary struts. CONSTITUTION:Ancillary struts 3, shorter in length, are installed separately from main struts 2 of a stepped roof. Purlins 5 and rafters 6 are then fixed to the ancillary struts 3. With such arrangement, additional construction or the like for an ancillary H2 to a house can be executed without affecting framework structure of the main body H1 of the house. Thereby standardization and unitization of the house main body can be facilitated and, at the same time, simplification for execution of work can be realized.</p> |
