Static structures (e.g. – buildings) – Irreversibly reactive component
Patent
1975-11-06
1976-12-21
Faw, Jr., Price C.
Static structures (e.g., buildings)
Irreversibly reactive component
52235, 52395, 52481, 52483, 52508, 52547, E04C 246, E04B 198
Patent
active
039980162
ABSTRACT:
A wall structure of the double-skin insulated type which spans across at least first and second building frame members. The wall structure comprises a liner sheet positively secured to the second frame member and having a liner sheet end lapping the first frame member; confinement means releasably retaining the liner sheet end to the first frame member; a facing sheet positioned outboard of the liner sheet; and at least two subgirts (a) entirely spaced-apart from the first frame member in the direction of the second frame member and from each other, (b) positioned between the facing sheet and the liner sheet, and (c) each secured to the facing sheet and to the liner sheet.
The arrangement is such that the wall structure fails in a particular manner when subjected to abnormally high positive or negative wind pressures of preselected value. The failure load of the wall structure is controlled by the end-subgirt spacing -- the distance between the first frame member and the subgirt adjacent thereto. During failure, the wall structure slides free of the confinement means and collapses along the first frame member in the direction of the applied load, but remains positively connected to the second frame member.
A single-span wall structure may be provided wherein distinct confinement means releasably retain the opposite liner sheet ends on the first and second adjacent frame members. At least two subgirts are provided, one adjacent the first frame member but entirely spaced-apart therefrom in the direction of the second frame member, and one adjacent the second frame member but entirely spaced-apart therefrom in the direction of the first frame member. When subjected to abnormally high positive or negative wind pressures of preselected value, the single-span wall structure slides free of either or both of the distinct confinement means and collapses in the direction of the applied load.
The present wall structure protects the structural framework from being overstressed during tornadoes or hurricanes; and also is capable of quickly relieving excessive pressures generated by an explosion within the building.
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Braun Leslie A.
Faw Jr. Price C.
H. H. Robertson Company
Keck Harry B.
Manias George E.
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