Static molds – Miscellaneous mold adjuncts – In situ construction engineering or building type
Patent
1984-05-29
1986-02-11
Woo, Jay H.
Static molds
Miscellaneous mold adjuncts
In situ construction engineering or building type
52641, 52644, 52645, 249 18, 249 19, 249210, E04G 1154
Patent
active
045695016
ABSTRACT:
The cambered truss header is embodied in a shoring apparatus for pouring substantially horizontal concrete building sections. The truss header extends between and is supported on end runners which may be carried on floor-supported legs or on hangers mounted on upright building sections. A truss header may consist of a truss span having a top chord member, a bottom chord member, and a plurality of like brace members interconnecting the chord members. The brace members form an open web pattern wherein adjacent brace members are reversely inclined with the plurality of apices being connected to the top chord members a spaced apart distance greater than the spaced apart distance between the apices of the bottom chord member. The truss header is thus provided with a camber which tends to assume a horizontal position in response to a load placed on the truss header by the horizontal concrete building section. By arranging a pair of truss spans side-by-side for relative longitudinal movement, the truss header may be adjustable in increments equal to the spaced apart distance between the connected apices of the brace members to accommodate spans of different widths.
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"Flying Forms", Alumina-Systems sales brochure, Alumina Building Systems, Inc., Ontario, Canada.
Economy Forms Corporation
Housel James C.
Lowell Rudolph L.
Woo Jay H.
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