| 摘要 |
PROBLEM TO BE SOLVED: To make an excellent consisten by with the corrugation of an arch shell, make smooth flowing of rainwater in the upper side of a daylighting plate, and construct a structure having a good external appearance in a daylighting unit constituting a building and assembled by having a flat plate daylighing plate for the arch shell in which a horizontal cross section has the corrugation. SOLUTION: A window body assembled for a rectangular window 11 formed on an arch shell 1 is constituted of support materials 25, 29 supporting the upper side, right and left sides and lower side of a lighting plate 23. The support material of the right and left sides is fitted to a crest part cut in a corrugation by the right and left sides of a window 11, and a second angle 47 is joined for an angle 35 bolted. The axial line of the second angle 47 is inclined to the axial line of the first angle. The upper side support material 25 attaches a fitting material 83 to plate material 61, 63, 65 positioned upward of the inside of the room of the window, and the fitting material 83 is fitted to the crest part of the corrugation of the arch shell 1 from the inside of the room. A lower side member comprises a steel material having an inverted U-shaped cross section, and the inverted U-shaped cross section coverts the corrugation cut by the lower side of the window.
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