Abstract: A composite floor system comprises a system of joists, where each of the joists has a top chord, a bottom chord and a web, including tension and compression members in the space between the top chord and the bottom chord and secured to the top and bottom chords, and the top chord of the joist having a substantially cruciate or cross-shaped cross section about a longitudinal axis of the upper chord.

Abstract: A concrete slab system with self supported insulation and method of making same which comprises a poured-in-place concrete slab with an insulation board held by metal or plastic C channels. The insulation is held in place on both sides by C channels. The C channels are in turn embedded into the concrete slab and as a result, the insulation is attached to the slab itself. The embedded C channels serve not only to support the insulation board but also as concrete form-work, therefore, allowing a variety of ceiling options on the under-side of the panels, while providing support for the reinforcing steel on the upper side of said panels. This system may be used for either an inclined or flat slab design, roofs or intermediate floor applications.

Abstract: A joist suitable for use in a composite concrete floor is disclosed. The joist comprises a top chord, a bottom chord; and a vertically extending intermediate web having a top end secured to the top chord and a bottom end secured to the bottom chord. The top chord comprises a pair of longitudinally continuous symmetrical chord members facing each other and embracing the top end of the web. Each of the chord members includes a vertical portion secured to the top end of the web and a slanting upper extension extending above and away from the top end of the web, thereby providing a shear connecting portion and a flared opening, between the two facing chord members, giving access to the web and improving access of a welding tool to the area between the symmetrical portion of the top chord and the web member that must be joined together.

Abstract: A composite floor system comprises a system of joists, where each of the joists has a top chord, a bottom chord and a web, including tension and compression members in the space between the top chord and the bottom chord and secured to the top and bottom chords, and a top chord that is formed substantially in the shape of a cross.

Abstract: The present invention provides a composite action system and a method for fabricating the same to meet OSHA safety requirements and allow for welding off the work site. An improved structural system achieves the desired composite behavior by providing one or more structural members, plates coupled with the structural members, transverse reinforcing members passing through apertures in the plates, and additional reinforcing members positioned parallel and transverse to the structural members to provide an interlocking composite action between the structural members, reinforcing members, and concrete.

Abstract: The invention relates to a building bar system, in which horizontal bars are located between vertical columns of a building, horizontal bars bearing shell slabs, which form an intermediate floor for the building. The horizontal bar consists of a plate girder, to which a tensioned pre-raising has been provided with tension bars between a plate girder and a vertical column.

Abstract: A composite construction panel having a thin panel of concrete material and a reinforcing grid of sheet metal studs with embedment portions which are actually embedded into the concrete panel, each of the studs having a web, main web openings through the web, a right angular flange formed on a free edge of the web, an embedment angled flange portion formed along the opposite edge of the web, an edge strip formed on the angled flange at an angle thereto; and, spaced apart angled flange openings formed in the angled flange for flow of concrete therethrough. An alternate form of stud has a triangular tube structure along one edge of the web. Another form of stud has a discontinuous webs defining spaces between them. In one embodiment two concrete panels may be secured to the studs in spaced relation to create a hollow structure.

Abstract: A demountable modular floor for watertight raised decks consisting of a plurality of modularly assemblable composite slabs made of steel sheet and concrete, provided with a drainage system for collecting and conveying the rainwater between the slabs, wherein each composite slab comprises a bottom element (1) made of corrugated metal sheet surrounded by four suitably shaped metal sections (2, 3) and filled with a concrete layer (14), as well as four segments of upwardly open gutters (6, 7) peripherally arranged around said composite slab. The structure is completed by grid elements (8) covering the gutters (6) of larger width. The floor structure allows a rapid setting up of the raised deck and, at the same time, it affords the total dismantling thereof and prevents any seepage or leakage of water towards the underlying area.

Abstract: A composite roof form includes first, second and third upright building walls laterally connected to define an interior building space, wall upper end segments of the at least a first upright building wall, a second upright building wall and a third upright building wall; the interior building space containing a building floor; an abutment beam and a laterally adjacent roof support beam defining a recessed horizontal lip portion facing the second wall, the beam upper segment defining a fourth roof form side wall; and a roof form support structure comprising at least one support leg extending from the building floor upwardly along the opposing wall to substantially the bottom of opposing second wall upper end segment and including a support panel having a panel connected end joined to the support leg and a panel engaging end with a panel upper surface and with a lip portion engaging structure resting on and supported by the lip portion, so that the panel upper surface extends along the bottom of the wall upper

Abstract: A composite roof form includes first, second and third upright building walls laterally connected to define an interior building space, wall upper end segments of the at least a first upright building wall, a second upright building wall and a third upright building wall; the interior building space containing a building floor; a beam having an inward beam a beam upper segment and having a recessed horizontal lip portion along the bottom of the beam upper segment facing and substantially parallel with an opposing the wall, the beam upper segment defining a fourth roof form side wall; and a roof form support structure comprising at least one support leg extending from the building floor upwardly along the opposing wall to substantially the bottom of opposing second wall upper end segment and including a support panel having a panel connected end joined to the support leg and a panel engaging end with a panel upper surface and with a lip portion engaging structure resting on and supported by the lip portion, so

Abstract: A concrete floor of a portable storage building is made for one or more storage units with each unit including a floor made through use of a single pair of mold sections or a plurality of pairs of mold sections interconnected for multiple storage units. Each mold section has a raised center and a circumferencial channel with concrete being poured onto the raised center and into the circumferencial channel. Removable exterior mold side walls complete the floor mold. A jack bracket is removably attachable to the floor corners and in turn is engageable with a hydraulic jack for raising and lowering the floor for loading onto the flatbed of a truck for transport to a remote site of use. A chain hoist connected to a top edge of a building wall panel is used to pivot the wall panel to a raised vertical position as the hoist moves on a rail to the vertical plane of the wall panel when raised.

Abstract: A composite floor or ceiling structure which comprises a profiled steel deck supported by a plurality of I-section steel beams each having an upstanding web bordered by upper and lower flange plates and covered in situ with concrete. The deck comprises a plurality of side-by-side elongate profiled deck members each including an upper generally horizontal surface bordered by downwardly and outwardly inclined side surfaces. The upper flange plate of each beam has formed in its upper surface a plurality of grooves in a pattern to increase bonding between the beam and its covering of concrete. Preferably, each supporting beam is rolled as a single piece with the width of its lower flange plate greater than that of its upper flange plate to define a supporting platform for the steel deck.

Abstract: A concrete floor system includes the use of sheet metal pan or decking and sheet metal z-shaped closures sitting upon low profile open web steel joist providing a non-structural or structural concrete brake above the walls forming vibration damping and sound & fire barriers. The z-shaped closures have apertures formed through them which correspond to the end profiles of the joist shoes of the joists, and are fitted onto the joists before or after the joists are in place. The need for sound and vibration damping rock wool, foams and other similar material below the floor and between walls is eliminated.

Abstract: There is provided a self-supporting insulated deck structure for buildings whereby the deck can be constructed inexpensively and efficiently and can attain a desirable fire rating in addition to improved sound absorption properties. The self-supporting insulated deck structure is made of a cementitious material and has no exposed structural steel members. Formwork for the insulated deck structure is made of integral panels formed from foam insulation members, fire retarding boards, and sound attenuating boards. The integral panels are supported on shored steel support brackets. Once the cementitious material cures, the shoring is removed as the deck structure is self-supporting. The adjacent integral panels provide the insulated deck structure with desirable fire rating and sound absorption properties.

Abstract: A construction panel for use in the erection of buildings comprising a panel of castable construction material of predetermined thickness, and having first and second sides; a plurality of structural members, reinforcing the panel on one side, at least some of the structural members comprising a generally linear edge, and a generally zig-zag edge, and a web extending between the linear edge and the zig-zag edge, the zig-zag edges defining apexes, and root portions; the apexes, being embedded in one side of the panel thereby securing at least some of the structural members to the panel; recesses formed in the web extending substantially from the apexes to the root portions; and, generally triangular indentations formed in the web throat portions adjacent to but spaced from the recesses. Also disclosed is a method of constructing a level portion of a building.

Abstract: An improved structural framing system and associated method for constructing same wherein a specially configured dissymetric steel beam is horizontally disposed and supported between adjacent vertical columns erected on conventional foundations. The dissymetric beam is fabricated having a compressed, block-like top flange formed opposite a substantially flattened bottom flange and integrally connected thereto by an intermediate web. Standard hollow core sections of precast, prestressed concrete plank spanning perpendicular to the dissymetric beam are disposed on either side of the beam and together assembled thereto so that the web of the beam is disposed centrally between facing edges of the plank sections with the bottom flange of the beam supporting the lower surface of the plank and the top flange substantially aligned with the upper plank surface.

Abstract: A floor joist support system for extension between foundation walls of the building structure employs a generally channel-shaped joist support member having slots arranged at spaced intervals and extending horizontally between a pair of foundation walls. A plurality of joist sections are arranged in oppositely directed pairs for extension between a second pair of foundation walls transversely of the joist support member, the joist pairs extending through adjacent pairs of slots in the joist support member. The joist sections are affixed both to the joist support member and the foundation walls after the total effective length of the joist pairs is adjusted to correspond to the distance between the second pair of foundation walls.

Abstract: A grid assembly, and method for use in manufacturing a grid reinforced concrete deck, including a plurality of longitudinally extending main beams in parallel spaced relation, each of the main beams having a plurality of longitudinally spaced slots therein and a central flange thereon, a plurality of cross bars adapted to be inserted through the aligned slots and rotated into an upright position, a form pan extending between two adjacent main beams and having a first and a second side portion adapted to rest on the central flange of the two adjacent main beams, respectively, wherein the form pan includes at least a first ridge extending upwardly thereon, the first ridge having a height which enables a lower edge of the cross bars to come into contact therewith when in the upright position, wherein the contact causes a downward force on the first ridge which mechanically locks the form pan between the cross bars and the flange on the adjacent main beams.

Abstract: An improved steel and concrete floor system in which a corrugated steel deck is supported on shelves fixed to the sides of parallel spaced joists. Each joist has a top chord forming a shear connector to cause composite action to occur between the joist and a slab poured on the deck, in which the topchord is embedded. The deck acts as a form for pouring the slab, and is a permanent part of the composite floor system. The deck is fixed to the shelves either by spaced self-tapping screws or by spot welds. In the nonconcreted stage the deck and joists form a stable structure on which construction loads are safely supported.

Abstract: A pre-cast reinforced concrete structural beam comprises an upstanding web (136) and at least an inwardly directed flange (138) at the base of the web, the face of the web which is innermost in use and/or the upper face of the flange having surface irregularities (236,140) formed therein into which a cast in situ floor slab can penetrate to form a mechanical lock with the beam.

Abstract: An exodermic deck for structural floors including bridge floors, road beds, pedestrian walkways, or the like, comprises a composite structure of a grid component and a top component. The grid component is preferably made of steel and includes a plurality of main bearing bars and a plurality of distribution bars oriented perpendicular to the main bearing bars. The top component is preferably made from reinforced concrete. The upper portions of either the main bearing bars or the distribution bars are embedded in the reinforced concrete component permitting horizontal shear transfer and creating a composite deck structure which maximizes the use of tensile strength of steel and the compressive strength of concrete. The top sections of the embedded bars have gripping surfaces for effecting mechanical locks between the grid component and the concrete component and increasing the horizontal shear transfer therebetween.

Abstract: A space frame structure comprises an upper rectangular grid of structural members, a lower grid of structural members and interconnecting members joining the grids together to form a space frame. A concrete layer is poured on to shuttering carried by lower flanges of the upper grid members with these upper members partially embedded in the concrete to form a composite upper layer. At least two upper members of each grid rectangle have upper flanges embedded in the concrete, and at least one of the members from the same grid rectangle is without an upper flange to facilitate installation of the shuttering.

Abstract: A composite floor system includes a plurality of joists, each having a top and bottom chord and a web in the space between the chords. The top chord is formed with a pair of horizontally extending legs and at least one vertical leg. The top of the web is attached to the bottom surface of the top chord. Metal decking is supported by the horizontal legs of the top chord of adjacent joists and a concrete slab is poured on the decking and encloses the vertical leg of the top chord.

Abstract: A steel and concrete secondary truss type framing member, steel deck concrete floor construction in which the top chord of the truss is formed in the shape of a modified "I" section having an upper flange, web and lower flange with a generally flat upper bearing surface of greater dimension than the upper flange for supporting steel decking. The upper flange and web of the top chord are totally embedded in the concrete to cause the concrete floor and steel truss to function together structurally as a composite system. The top chord of the truss acts as a continuous shear connector thus enabling the top chord to perform a multi-purpose function. Additionally, the top chord web may be either a solid section or contain perforations.

Abstract: A composite floor system includes a plurality of joists, each having a top and bottom chord and a web in the space between the chords. The top chord is formed with a pair of horizontally extending legs and at least one vertical leg. The top of the web is attached to the bottom surface of the top chord. Metal decking is supported by the horizontal legs of the top chord of adjacent joists and a concrete slab is poured on the decking and encloses the vertical leg of the top chord.

Abstract: A sheet metal structural shape for use as a stud or mullion in wall construction or a purlin or sub-purlin in deck construction which is symmetrical about a vertical bisecting plane having a central vertical web, two diagonal legs projecting downwardly from one end of the web forming an included angle of about 30.degree. to about 90.degree., each of the diagonal legs having a leg projecting downwardly at its extremity in a plane substantially parallel to the web, each of the parallel legs having flanges extending outwardly at their extremity, a closure side extending between the extremities of the flanges enclosing the area formed by the diagonal sides, parallel sides and closure side, and a stiffening member at the other end of the web. A wall structure utilizing a spaced series of the metal structural shapes with a wall material attached to the flanges of adjacent structural shapes.

Abstract: A composite floor system includes a plurality of joists, each having a top and bottom chord and a web in the space between the chords. The top chord includes a pair of angle bars, each having a vertical leg of differing heights and a horizontal leg. The top of the web extends between the vertical legs of the chord to a point between or level with the top of the larger vertical leg of the angle bars. Decking is supported by the horizontal legs of the top chord of adjacent joists and a concrete slab poured on the decking and between the vertical legs of the top chord to provide bonding between the concrete slab, top chord and web.

Abstract: This invention relates to a sheet metal structural shape for use in building construction having a generally box shape with outwardly extending flanges at one end of the substantially parallel sides and inwardly extending flanges at the other end of the parallel sides forming turned inward ends of the inwardly extending flanges and a closure between the ends of the outwardly extending flanges closing the space between the sides at that end. The sheet metal structural shape may be advantageously used as a structural shape in deck structures and in wall structures according to this invention. One deck structure of this invention uses the sheet metal structural shape as a sub-purlin, or purlin on short spans, supporting insulation on the bottom outwardly extending flanges and having roofing material fastened to the inwardly extending flanges at the top end of the structural shape. Thus, a deck is provided with at least a major portion of the insulation beneath the roof decking.

Abstract: A poured concrete insulated deck structure comprising a series of parallel sub-purlins having horizontal flanges extending outwardly at the lower portion of the sub-purlin, a temperature resistant, moisture permeable formboard resting on flanges between adjacent sub-purlins, the formboard having secured to its upper surface rigid synthetic polymer foam having spaces vertically therethrough providing communication from the upper side of the formboard to the upper side of the foam, spaces having an area of more than about 5 percent of the area of the formboard, and poured concrete adjacent the upper side of the foam and extending through the spaces contacting the upper side of the formboard, the concrete completing drying by escape of moisture through the formboard. The structure of this invention results in a unitized structure affording high strength, high insulation properties, fire resistance, design versatility and economy.

Abstract: The system is preferably for use in building construction where concrete floors can be poured in place. The components of the system comprise parallel arranged joists preferably each constructed from three pieces to form an I-beam joist, bracing channels extending orthogonally between adjacent joists and mated at their respective ends with the joists, means for securing and bracing channels in place relative to the joists, and corrugated metal decking extending in separate sections between adjacent joists and over the bracing channels. Concrete is poured over the metal decking and interlocks with the top end of each joist to form a structurally securely supported, poured-in-place concrete floor.

Abstract: This invention relates to a sheet metal structural shape for use in building construction having a generally box shape with outwardly extending flanges at one end of the substantially parallel sides and inwardly extending flanges at the other end of the parallel sides forming a slot between the ends of the inwardly extending flanges and a closure between the ends of the outwardly extending flanges closing the space between the sides at that end. The sheet metal structural shape may be advantageously used as a structural shape in deck structures and in wall structures according to this invention. One deck structure of this invention uses the sheet metal structure shape as a sub-purlin, or purlin on short spans, supporting insulation on the bottom outwardly extending flanges and having sheet metal roofing material fastened to the inwardly extending flanges at the top end of the structural shape. Thus, a deck is provided with at least a major portion of the insulation beneath the steel roof decking.

Abstract: Each one of a plurality of parallel horizontal beams has longitudinally spaced vertical slots extending transversely through it, with the lower wall of each slot formed by the top of the free end portion of a tongue struck out of the beam. Resting on these tongues are parallel cross bars that extend through the slots and have notches extending downwardly from the tops of the bars receiving the portions of the beams above the slots, with those portions substantially engaging the bottoms of the notches. The height of the tongues is great enough to permit the bars during assembly to be inserted in the slots while the tongues are bent laterally out of the beams, whereupon the bars can be raised in the slots and the tongues bent back beneath the bars to support them.

Abstract: A sheet metal structural shape for use as a stud or mullion in wall construction or a purlin or sub-purlin in deck construction which is symmetrical about a vertical bisecting plane having a central vertical web, two diagonal legs projecting downwardly from one end of the web forming an included angle of about 30.degree. to about 90.degree., each of the diagonal legs having a leg projecting downwardly at its extremity in a plane substantially parallel to the web, each of the parallel legs having flanges extending outwardly at their extremity, a closure side extending between the extremities of the flanges enclosing the area formed by the diagonal sides, parallel sides and closure side, and a stiffening member at the other end of the web. A wall structure utilizing a spaced series of the metal structural shapes with a wall material attached to the flanges of adjacent structural shapes.

Abstract: A sheet metal structural shape for use as a purlin or sub-purlin in deck construction which is symmetrical about a vertical bisecting plane having a central vertical web, two legs projecting downwardly from the bottom of said web at an angle of about 45.degree. to about 75.degree. to the horizontal, each leg having a substantially horizontal flange projecting outwardly at its lower extremity, and a stiffening member at the upper edge of the web. Poured concrete insulated deck structures utilizing a series of the metal structural shapes with gypsum formboard resting on the horizontal flanges and extending between adjacent structural shapes, rigid synthetic polymer foam having an underside adjacent the upper side of the gypsum formboard and having holes vertically therethrough, the holes having an area of more than about 5 percent of the area of the underside of the foam, and poured concrete adjacent the upper side of the foam and around the stiffener to prevent uplift.