E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
E04B 1/19 (2006.01) E04B 1/21 (2006.01) E04C 5/01 (2006.01) E04C 5/04 (2006.01) E04C 5/06 (2006.01)
Patent
CA 2135066
A generally rectangular wire grid (40) of welded construction is utilized to define and maintain the positioning of rebar (132) charged therethrough during the formation of structural column and girder cages. Prepositioned ties (46) guide the rebar through the grid. The prepositioned ties (46) are then tightened such that the rebar is held firmly in place at the close tolerance positions defined by the prefabricated grid. A plurality of such grids are assembled into expandable bundles (100) such that they may be expanded in an accordion-like fashion about rebar (132) charged therethrough, resulting in properly spaced grids for de-fining and maintaining the position of the rebar. Additional rebar members (132) may then be charged therethrough to complete the construction of a column or girder cage. The modular reinforcement cages of the present invention thus eliminate piecemeal engineering requirements by providing modular building concepts in which a unique rebar bundle pattern facilitates improved containment.
Baumann Hanns U.
Gowling Lafleur Henderson Llp
LandOfFree
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