A formwork stud system includes a plurality of studs, a top channel, a bottom channel and a plurality of horizontal and vertical rebars. At least one of the plurality of studs is a formwork stud. The formwork stud includes a web and a pair of flanges. The web has opposed side portions extending from the top of the formwork stud to the bottom of the formwork stud and a plurality of lateral spaced apart connectors extending between the opposed side portions. The opposed side portions and the lateral spaced apart connectors define a plurality of spaced apart holes. The holes are configured to allow concrete to flow therethrough. The pair of flanges extend generally orthogonally from the opposed side portions of the web.
E04B 2/86 - Walls made by casting, pouring, or tamping in situ made in permanent forms
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
E04G 11/06 - Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved
E04G 17/065 - Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
E04C 3/09 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with apertured web, e.g. with a web consisting of bar-like componentsHoneycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
E04C 5/16 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
E04C 3/04 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal
A formwork stud system includes a plurality of studs, a top channel, a bottom channel and a plurality of horizontal and vertical rebars. At least one of the plurality of studs is a formwork stud. The formwork stud includes a web and a pair of flanges. The web has opposed side portions extending from the top of the formwork stud to the bottom of the formwork stud and a plurality of lateral spaced apart connectors extending between the opposed side portions. The opposed side portions and the lateral spaced apart connectors define a plurality of spaced apart holes. The holes are configured to allow concrete to flow therethrough. The pair of flanges extend generally orthogonally from the opposed side portions of the web.
A steel joist assembly for use in association with a concrete slab to form a composite steel joist. The joist assembly has a steel joist having a top portion with a generally planar top surface and a planar web generally orthogonal to the generally planar top surface; a pair of end connectors, one attached at each end of the steel joist and extending outwardly therefrom each end connector having a strut and a diagonal member. The strut has a generally planar bottom surface which is attached to a portion of the generally planar top surface of the steel joist and the diagonal member is attached at one end thereof to the strut and at the other end thereof to a portion of the planar web of the steel joist.
E04C 3/293 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms built-up from parts of different materials the materials being steel and concrete
E04B 5/10 - Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
E04C 5/16 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
A steel joist assembly for use in association with a concrete slab to form a composite steel joist. The joist assembly has a steel joist having a top portion with a generally planar top surface and a planar web generally orthogonal to the generally planar top surface; a pair of end connectors, one attached at each end of the steel joist and extending outwardly therefrom each end connector having a strut and a diagonal member. The strut has a generally planar bottom surface which is attached to a portion of the generally planar top surface of the steel joist and the diagonal member is attached at one end thereof to the strut and at the other end thereof to a portion of the planar web of the steel joist.
E04B 5/10 - Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
E04C 3/293 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms built-up from parts of different materials the materials being steel and concrete
E04C 5/16 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
A unitary steel joist includes a generally vertical web, a generally horizontal bottom flange, a generally horizontal top flange, a bottom wing, a bottom web portion, a top wing and a top web portion. The generally horizontal bottom flange extends outwardly on each side of the web. The bottom flange is made of two pieces of steel. The generally horizontal top flange extends outwardly on each side of the web. The top flange is made of two pieces of steel. The bottom wing extends outwardly from the web. The bottom web portion extends between the bottom flange and bottom wing. The top wing extends outwardly from the web. The top web portion extends between the top flange and the top wing. The unitary steel joist is made from a unitary piece of steel.
An upper chord bearing joist comprising a top chord member and a bottom chord member, each having a flange portion and a web receiving portion including two web receiving tabs, each made from a unitary piece of metal; a generally planar steel web, a portion of the web being attached to the top chord member and to the bottom chord member, wherein a top portion of the web is between the two web receiving tabs of the top chord member and a bottom portion of the web is between the two web receiving tabs of the bottom chord member; and a first and second pair of support members, each support member including a shoe portion, a web attaching portion, and an angled portion, the web attaching portion portion being attached to the web receiving tabs and the angled portion being in contact with the web. The joist may be cambered, have reinforcement stiffeners, and have a rotatable joint at either end. The joists may be used in composite with concrete or with wood.
E04B 1/24 - Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
E04C 3/06 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with substantially solid, i.e. unapertured, web
The present invention relates to a cold rolled steel beam comprising: a web having two layers of steel, the web having a top end and a bottom end; a pair of bottom flanges extending outwardly from the bottom end of the web; and a pair of top flanges extending outwardly from the top end of the web, each top flange having two layers of steel. Preferably, a portion of each bottom flange has two layers of steel, and the cold rolled steel beam includes a pair of end connectors extending generally orthogonally from the web and positioned generally orthogonally to the bottom flanges and the top flanges. Preferably, the cold rolled steel beam is cold formed from a unitary piece of sheet steel.
E04B 1/24 - Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
E04C 3/07 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
F16S 3/00 - Elongated members, e.g. profiled membersAssemblies thereofGratings or grilles
8.
ADJUSTABLE FLOOR TO WALL CONNECTORS FOR USE WITH BOTTOM CHORD AND WEB BEARING JOISTS
The present invention is a light steel framed metal joist including an adjustable connector fastened to the joist web that allows one to adjust the length and angle of the joist when attaching to floor and wall systems. The adjustment allows one to install end connectors onto the joists prior to installation while retaining flexibility of orientation during construction. The joist functions in both web bearing and bottom chord bearing configurations. A flat plate distributing member allows one to design a floor system without having to coordinate the positioning of the joist with wall studs. Angle or U shaped members can be fastened to the lower portion of the flat plate distribution member to support joists during construction. The invention further provides a seamless fire stopping system with consideration for acoustic dampening.
E04C 3/06 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with substantially solid, i.e. unapertured, web
E04C 3/08 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with apertured web, e.g. with a web consisting of bar-like componentsHoneycomb girders
E04C 5/065 - Light-weight girders, e.g. with precast parts
E04C 5/18 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of metal or substantially of metal
An upper chord bearing joist (20) comprises an upper elongate chord member (22) cold-formed from a unitary piece of sheet steel, the upper chord member (22) having a flange portion and a web receiving portion orthogonal thereto and the web receiving portion having two web receiving tabs (46, 48) and a pair of inner flange portions (45, 47), each inner flange portion extending outward from one of the web receiving tabs respectively; a lower elongate chord member (24), wherein the upper chord member (22) extends longitudinally beyond the lower chord member (24) at each end thereof; and a generally planar
steel web (26) attached to the web receiving portion of the upper chord member
(22) between the two web receiving tabs (46, 48) and attached to the lower chord member (24). A plurality of upper chord bearing joists may form a supporting system for use in composite floor and roof systems.
E04B 5/10 - Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
E04C 3/08 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with apertured web, e.g. with a web consisting of bar-like componentsHoneycomb girders
A lower chord bearing joist (20) comprises a lower elongate chord member (24) being cold-formed from a unitary piece of sheet steel, the lower elongate chord member having a flange portion and a web receiving portion orthogonal thereto, the web receiving portion having two web receiving tabs (46, 48) and a pair of inner flange portions (45, 47) each extending outward from one of the web receiving tabs respectively; an upper elongate chord member (22), wherein the upper chord member is generally the same length as the lower chord member; and a generally planar steel web (26) attached to the web receiving portion of the lower elongate chord member (24) between the two web receiving tabs (46, 48) and attached to the upper elongate chord member (22). A plurality of lower chord bearing joists may form a supporting system for use in composite floor and roof systems.
E04B 5/10 - Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
E04C 3/08 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of metal with apertured web, e.g. with a web consisting of bar-like componentsHoneycomb girders
patents
