Abstract: The precast I-beam concrete panels include an elongate I-beam embedded in an elongate concrete beam that has a platform or panel parallel to the upper flange of the I-beam. The I-beam is longer than the concrete beam so that opposite end portions of the I-beam project past the corresponding ends of the concrete beam. During installation, the projecting end portions of the I-beam may be seated into corresponding notches or recesses in spaced support beams. The sides of the concrete beam may be flat for abutting engagement with adjacent panels, or may be provided with opposing, stepped lip flanges for forming lap joints along longitudinal edges of adjacent panels. The sides of the precast I-beam concrete panels may be semi-parabolic, so that adjacent panels define an arch below interlocking panels. A plurality of the panels laid side-by-side and supported by the notched beams define a concrete floor or concrete foundation.

Abstract: A system and method for supporting and positioning stay in place metal decking between support girders which have a substantially horizontal top surface with opposite side edges defining a width of the substantially horizontal top surface, includes a plurality of straps for placement on the substantially horizontal top surface of the support girder and having substantially vertical end portions at the ends thereof substantially aligned with the opposite edges of the substantially horizontal top surface, and a pair of angle irons, one side of each angle iron forming the height of the angle iron adapted to be adjustably attached to and to be adjustably vertically positioned with respect to the vertical end portions of the strap, and the width of the angle iron being sufficient for holding the edge of a metal decking pan. Wind clips can be installed to hold the assembly in position in high wind conditions.

Abstract: A system for fabricating a slab from a construction material having both unhardened and hardened states includes a form panel unit and a pair of spaced structural supporting members. The supporting members are adapted for assisting in supporting said slab made the construction material. The form panel unit includes a panel member adapted for use as part of a form to retain said construction material when in an unhardened state and has generally opposed upper and lower surfaces. The panel unit also has at least one reinforcement unit having at least one reinforcement member mounted above the upper surface of the panel member is interconnected to the panel member. The form panel unit is configured so that the panel member can be positioned between the supporting members, such that said unhardened construction material can be retained above the upper surface of the panel member to permit hardening of said construction material from its unhardened state to its hardened state.

Abstract: Provided are a stiffener for connecting a prestressed concrete beam and a method of constructing a structure using the same, in which the beam such as the prestressed concrete beam which is covered with concrete is connected to a target structure including a column structure or a girder. The stiffener is made up of a buried stiffener, an end face stiffener, and a joint stiffener, thereby enabling simple connection, excellent stress transmission, and very efficient construction of (building) structures.

Abstract: Composite pan end connections for composite beam-joist construction are disclosed. Two versions of the composite pan can be fabricated on a standard break machine. A third version disclosed makes use of a standard steel stud. All three versions provide an economical, easily installed horizontal platform secured to the top chord seat angles of either conventional or composite open-web joists. In addition to economy in fabrication, and ease of use, the resulting rectangular shape of the concrete slab over the beam is structurally more efficient than heretofore obtainable.

Abstract: In one implementation of the present invention, corrugated metal deck panels are attached to concrete structural beams to form a precast panel.

Abstract: Wall system employing lightweight precast concrete wall panels. The precast wall panels include a concrete slab and a plurality of spaced-apart elongated generally parallel bent sheet metal channels that are partially embedded in the slab. Each wall panel can be coupled to a support wall by extending self-tapping screws through metallic wall framing members and the channels at locations where the framing members and channels cross.

Abstract: The structural framing system comprises a steel beam that supports flooring components interconnected through the addition of a solidifying material such as poured concrete. A structural framing system is created by anchoring steel beams to vertical columns, spanning floor sections between the steel beams, pouring concrete into the interior of the beams and contacting the flooring components, and then forming a rigid joint between the steel beam, floor sections and columns through the addition of a bonding layer.

Abstract: A method of constructing a suspended floor is described in which a plurality of beam-forming formwork assemblies are located in substantially parallel alignment, the beam-forming formwork assemblies are supported in support assemblies on a support base in stable equilibrium, a plurality of floor-forming formwork assemblies are located between the beam-forming formwork assemblies for support thereon, concrete is poured in said formwork assemblies, the concrete is allowed to set, and the formwork assemblies are removed from the set concrete for re-use.

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 hearth form is utilized for pour-forming a fireplace hearth in the absence of eventual removal thereof from an opening established by floor joists and a conventional concrete masonry unit. The hearth form is preferably constructed from two relatively slidable body portions which may be reinforced by inter-engaged parallel channels or grooves. The body portions collectively define a chamber or cavity into which concrete can be poured. A peripheral wall defined in part by side walls and front walls carry brackets for establishing a predetermined space between the hearth form and floor joists, not just for supporting the hearth form upon nails or fasteners and nail centering marks for establishing the location of fasteners to assemble the hearth form in an associated floor opening.

Abstract: A metal "U" shape channel form is used to form a concrete beam, and has two laterally opposed outwardly extending horizontally disposed flanges with two supporting areas arranged in a stepped fashion for selectively supporting a metal deck or both a metal deck and plywood between the span of adjacently arranged channel forms used to form a slab therebetween, which slab may be composite in that the formed slab integrally includes a metal deck. A "U" shape shoring head of complementary shape to the channel form is mounted on a shoring frame to hold the channel form in place for the pouring of the concrete, and a shoring head can be used with a structural member arranged to support the metal deck of variable spans for slabs of variable dimensions in the available space.

Abstract: An open web joist system and a composite concrete structure incorporating said open web joist system wherein the top chord comprises two spaced-apart angle bars held in spaced-apart relationship by bar stock of an open web member and a closure member for blocking the downward flow of concrete between the vertical legs of the top chord. Concrete is thus enabled to flow into the groove formed by the two angle bars at the top chord and serve as a keyway to prevent longitudinal movement of the concrete with respect to the joist members. Bolts are used to suspend spanner bars for holding concrete forms in place, and these bolts pass downwardly through an opening in the closure member to the spanner bars.

Abstract: A poured concrete deck structure which extends to the external building line or to a designated line of an internal opening of a building has a form deck which is supported by metal structural girders, including edge girders which are spaced from the building line or designated line, and an edge construction which retains the concrete according the building specifications. The edge construction is improved by terminating the form deck at the edge girders, providing a plurality of spaced support means secured to the top of the edge girders and extending towards the building line or designated line and providing a plurality of adjacent pans for retaining the poured concrete. The pans are supported by at least two supports, and are in communication with an edge girder. The pans may be secured to the edge girder, to the support means, or to both, after proper alignment with the building line or designated line.

Abstract: A poured concrete building deck structure of the type having corrugated sheet metal form deck wherein the edges along sides parallel to the corrugations of the major form deck at the edges of the deck and edges of internal openings through the deck are formed by a corrugated sheet metal form having corrugations at about 90.degree. to the major portion of the corrugated sheet metal form deck, the ends of the deck around all sides of the building or around all sides of the internal opening being spaced a distance from the desired building line or opening and an edge bracket fastened to the outer ends of the sheet metal forms extending outwardly to the desired relationship to the building line or opening and providing a means to retain poured concrete.

Abstract: In a method of constructing a reinforced concrete bridge a supporting arch s erected which comprises a cocked center part of which forms a supporting reinforcement intended to be incorporated in the concrete of the final bridge structure. Shuttering is placed in position on the arch and the concrete poured to embody the supporting reinforcement and constitute the deck of the bridge. The resultant deck is formed by a ribbed slab, by girders connected by a slab, or by at least one box. After the concrete has hardened the remaining exterior part of the arch is removed, and if required additional reinforcement may be embodied in the concrete.

Abstract: The bottom flutes of a fluted deck or diaphragm of a building are fixedly attached to a horizontal load bearing member supported by vertical load resisting members. A load translation member, fixedly secured to the top flutes of the diaphragm and to the horizontal load bearing member, precludes relative movement between the top flutes en masse and the bottom flutes en masse. By precluding relative movement of the top and bottom flutes, the shear loads imposed upon the diaphragm by earthquakes and/or high winds are translated through the load translation member and the load bearing member to the vertical load resisting members.