| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the number of a roof truss constituting members, reduce its cross section, and apply rain stop procedures of a ridge section from the attic space. SOLUTION: This steel-framed roof truss structure is provided with portal trusses 5 constituted of a pair of vertical roof struts 6, 6 erected on columns 4, 4 separated in the girder direction, purlins 7 connecting the upper ends of the roof struts 6, and bracings connecting the purlins 7 and the roof struts 6. Frame materials 20a in the roof grade direction of the panel frames 20 of roof panels 19 are installed on the purlins 7.</p> |
