Abstract:
A steel joist member for use in supporting floor structures giving great strength and convenience and improved acoustical performance having a web defining side edges and an axis, a flange on at least one side edge, openings through said web at spaced intervals therealong, having rounded ends and parallel linear sides, portions of said web displaced from said opening remaining attached integrally to the web by bend lines formed on the linear sides of the openings along axes parallel to the web axis, and forming reinforcing channels alongside the opposite sides of the opening. Also disclosed is a composite joist member made up of two such members joined together back to back with their openings in registration creating an H shape or an I shape. Also disclosed is a rim member for supporting the composite joists to form a floor structure. Also disclosed is a method of making such a floor joist member. Also disclosed is a floor panel system wherein floor panels can be prefabricated in a factory and transported to a construction site ready for installation in a building.
Abstract:
A joist comprised of at least one cold-formed steel elongated chord member; a cold-formed steel web having a plurality of web members and means for securing said web to said chord member. A plurality of joists are generally for use in a support system for a platform or a deck in the construction of floors and roofs. The support system is of particular use in a composite floor and roof systems.
Abstract:
The present invention relates to a novel connection means between members of a metal roof truss, namely the connection between chord members (20,22,24) and stiffening members (12,14,16,18). Each member includes internally pressed circular sections (86,90) adapted to engage one another and thereby provide for a joint having greater shear strength than hitherto known joints. This is achieved because radial movement of the members is prevented. Each member includes two parallel side walls (28,30) adapted to engage one another, this further strengthening the joint in that there are two connecting surfaces, and located between each engaged walls is a cylindrical ferrule (108) adapted to prevent inward deflection of the walls when secured. The connection means of the present invention may also include a secondary strengthening means in the form of splayed upper edges (110,112) located on the chord members (20,22,24). The splayed edges (110,112) serve to grip the side walls of the stiffening members (12,14,16,18) when secured. The above features not only provide for a much stronger connection between the truss members but also simplify assembly of the roof truss in that once each member is secured at one end, the configuration of the connection means allows for the free end to be rotated until it is appropriately positioned to be mounted to a further member.
Abstract:
A steel member (10, 40, 70, 100) for use in supporting structures and having reduced heat transfer characteristics as compared with solid web studs, and having a web (12, 42, 72, 102) defining side edges and an axis a flange (14, 44, 74, 104) on at least one side edge, openings (18, 46, 76, 112) through said web (12, 42, 72, 102) at spaced intervals therealong, of predetermined size and profile, at least a side portion of said web (12, 42, 72, 102) removed from said opening (18, 46, 76, 112) remaining attached integrally to said web (12, 42, 72, 102), by bend lines being formed along axes parallel to said web axis. Also disclosed is a composite member (130) made up of two such members (132) joined together. Also disclosed is a method of making such a member (10, 40, 70, 100, 130, 132).
Abstract:
A framing member incorporates a series of web slots along a portion of the member that are expanded through the process of manufacture. The expansion of the web slots creates voids and metal web elements in the webbed portion of the member, which can be a stud. The voids created during the expansion process can become the voids for running wiring, plumbing and heating ducts. The web elements can be designed to minimize thermal transmission from the exterior to the interior of a wall including the member, as well as provide adequate structure properties required from the structural member. The expanded slots allow the part to enlarge without increasing the amount of raw material and therefore substantially reducing the cost to manufacture.
Abstract:
A web connector, a building component connection and a method for connecting a first building component to a second building component. One embodiment of the web connector includes a rib member that is attachable to a web portion of the first building component and an attachment plate extending outward from the rib member. The rib member may be sized so that it is received on a leg portion that protrudes from the web portion of the first building component. The attachment plate is attachable to an attachement flange of the second building component. In another embodiment, the web connector includes two rib members and an attachment member that forms two plates for attaching two additional building components thereto.
Abstract:
A method of using a hinged connector (10) to form a complex junction in the making of a steel truss is provided. In general, a hinged connector (10) that is suitable for use in the method of the present invention comprises: first and second pieces (100, 200), each piece having a spine (112, 212) and first and second legs (108, 110 and 208, 210) defining a generally U-shaped channel (102, 202) and a longitudinal axis (30); a hinge (300) interconnecting a pivot end portion (104, 106) of the first piece (100) and a pivot end portion (204, 206) of the second piece (200) such that the longitudinal axis (30) of the first and second pieces (100, 200) extend and can be pivoted relative to one another in substantially the same plane; and an opening (232) formed at least partially in the spine (112 or 212) of at least one of the first and second pieces (100, 200) of the hinged connector (10).
Abstract:
A web member (51) for use in reinforcing a structural framework, such as a truss or framework, comprised of beams (37, 39) and web members (51) secured to the beams. A web member includes a support section (58) with a longitudinally extending tab (63) on each end thereof. The tabs (63) a bent to engage inside surfaces of the beams for securement thereto as with screw fasteners (107) whereby the web member is secured to and extends between beams of the truss.
Abstract:
A structural element (10) for a structure, the element comprising an angle steel element (22, 24, 74) and one or more crimped joint regions (16) along the length of the angle steel element, arranged in such a way that where one or more bracing members (12, 14, 72) is joined to the angle steel element a crimped region is pressed into the angle steel element, thereby decreasing the angle of the angle steel element, thus facilitating a cleatless joint between bracing member and support member. A three-legged structure (70) mainly manufactured from such elements may be used as a tower such as telecommunication or other communication towers.
Abstract:
The present invention relates to a beam with a fully and/or partially closed profile exhibiting at least two sides, in conjunction with which at least one side exhibits expanded matal (2, 3). The invention also relates to a manufacturing process for beams.