| 摘要 |
<p>PURPOSE:To improve rigidity or a roof truss by securing the base part, to which a lower chord member is locked by means of a bolt, of a ridge truss and the base part of a coupling metal being a starting point piece for locking the lower chord member of a truss in the direction of a gable to an inner roof beam in the direction of a gable positioned closer to a central position. CONSTITUTION:The roof structure of a housing is provided with outer roof beams 10 and 10 in the direction of a beam with a distance therebetween being an odd number times as long as the size of a module, outer roof beams 12 and 12 in the direction of a gable having length an odd number times as long as the size of the module, an inner roof beams 14 in the direction of a beam positioned closer to a central part and connected in a position located away from the one beam 10 by a distance an integral number times as long as the size of the module, and an inner roof beam 16 in the direction of a gable positioned closer to a central part and connected in a position located away from the beams 12 an integral number times as long as the size of the module. A ridge truss 3 is spanned in the direction of a ridge between the middles of the beams 10 and supported by a coupling metal 5 for locking the truss 3 on the beam 16 by means of a bolt. A truss 6 in the direction of a gable is locked by a starting point piece 52 by means of a bolt. This structure causes burdening of a load, exerted on the truss 3, by the beam 16 and improves rigidity of a roof truss.</p> |
