Abstract: An expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one lo-cal or continuous dowel which is arranged to transfer loads perpendicular to the slab plane. The expansion joint reinforcement comprises an additional reinforcement comprising at least one clenching pin and to be arranged in the vicinity of the dowel in concrete, the additional reinforcement being arranged to adhere to the concrete above and below the dowel by means of a widening forming the clench point.

Abstract: The invention relates to an expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one local or continuous dowel arranged to transfer loads which are perpendicular to the slab plane. A shear reinforcement or a location for attaching the shear reinforcement has been arranged in advance in the expansion joint reinforcement.

Abstract: Multiple layers of polymer foam form structural concrete into a desired planar shape that retains a foam panel when flat or upright. The polymer foam has a planar shape and an exterior surface with multiple channels into the panel. The channels are generally wider at the bottom and narrower towards the top, preferably a trapezoidal shape. In use, the panel is placed flat within a forming frame, exterior surface upwards. Then concrete is poured upon the exterior surface and into the channels. The trapezoidal shape of the channel prevents removal of the panel from the concrete. The concrete panel can then be used flat or upright as specified for a construction project.

Abstract: A protective structure for protecting buildings, bridges, roads and other areas from explosive devices such as car bombs and the like comprises: (a) a mesh structure having an outer surface and an inner surface, wherein the inner surface defines an annular space; (b) a plurality of structural steel cables in contact with the mesh structure; (c) a composite fill material which resides within the annular space of the mesh structure and within the mesh structure; (d) at least one reinforcement member which resides within the composite fill material; and (e) a composite face material which resides upon the outer surface of the mesh structure. The mesh structure may be made up of, for example, steel wire.

Abstract: A protective structure for protecting buildings, bridges, roads and other areas from explosive devices such as car bombs and the like comprises: (a) a mesh structure having an outer surface and an inner surface, wherein the inner surface defines an annular space; (b) a plurality of structural steel cables in contact with the mesh structure; (c) a composite fill material which resides within the annular space of the mesh structure and within the mesh structure; (d) at least one reinforcement member which resides within the composite fill material; and (e) a composite face material which resides upon the outer surface of the mesh structure. The mesh structure may be made up of, for example, steel wire.

Abstract: A method for manufacture and assembly of a concrete structure includes manufacturing, at a first location, wall sections and floor/ceiling sections. The wall sections include interior form walls of adjustable separation, and may include interior and exterior finish features, interior rebar, electrical and water supply, and optional fabric forms. The floor/ceiling sections include forms that have adjustable components, and may include rebar, interior finish features, and electrical and heating components. Wall sections and floor/ceiling sections are rotatably and slidably/rotatably attached to one another to define structure segments. Structure segments may be placed in shipping containers for transport. Structure segments are transported to a construction site in a compact orientation, manipulated to an assembled position, and then concrete is inserted into forms defined by the segments and permitted to cure.

Abstract: An upper framed portion of a building structure may be anchored to a lower masonry wall by using a conventional concrete anchor and an anchor retainer. The anchor retainer may have a body portion longer than the width of the wall and both upper and lower reference surfaces. An anchor retainer assembly is temporarily formed by inserting the anchor through a throughhole in the retainer body so that the threaded upper portion of the anchor extends above the upper reference surface of the retainer by a first selected height, so as to leave enough of the threaded end exposed above the retainer for at least one nut to be securely attached to the anchor. No unthreaded portion of the anchor extends above the lower reference surface by more than a second amount that is generally selected to be equal to the actual thickness of the framing member, so as to ensure that no substantial unthreaded portion of the anchor can extend above that member.

Abstract: A self-furring wire lath has stiffening trusses. In a preferred embodiment the lath comprises a grid of intersecting transverse and longitudinal wires welded at their intersections. Stiffening trusses are formed at bent sections in the transverse wires by first longitudinal wires affixed at the shoulders of the bent sections and second longitudinal wires affixed on the bent sections. A barrier layer is disposed between the first and second longitudinal wires. A building paper backing may be affixed to the barrier layer. The lath reduces cracking and wastage of stucco while remaining easy to work with.

Abstract: Resilient and flexible grout seal strips for sealing off a space formed between the bottom of a concrete panel and a support beam on which the panels are supported, concrete panels, decks, and support beams having resilient and flexible grout seals and methods for fabricating such panels, beams and decks are disclosed. The grout seal strips have a first longitudinal edge adapted to be anchored on either the bottom of a precast panel or the top of a support beam adjacent the respective side edge thereof and extend substantially the length thereof, and have an opposed second longitudinal edge with a wide sealing portion therebetween adapted to engage the other of the panel bottom or the beam top adjacent the respective side edge thereof and form a sealing relation therewith.

Abstract: The ledger mould assembly is suitable for use with a wall form assembly of the type comprising a pair of spaced-apart parallel foam panels defining therebetween a cavity for the setting of a flowable material for building an insulated wall. The ledger mould is used to receive a hardening flowable material and integrally forming a ledger to the wall. The ledger mould assembly comprises an elongated mould made of foam having a planar front face spanning from top to bottom, a tapered bottom edge and at least one flared recess in the front face, opening outwardly and upwardly from bottom to top. Mounting means are provided for horizontally mounting the mould against either one of the foam panels with the bottom down and the planar front face of the ledger mould in contact with the planar outside face of the foam panel. This set-up allows flowable hardening material to be poured from the top of the mould into the flared recesses to form a ledger once it has hardened.

Abstract: A precast concrete slab for forming a deck in a bridge superstructure has a chamfer on forward and trailing edges so that adjacent slabs can mate. The slab is reinforced with bars which protrude laterally from the slab on opposite sides and which, in use, extend over support beams. Selected bars are formed in a castellated shape of which inverted U-shaped portions extend above the surface of the precast concrete slab. Conveniently, the U-shaped portions anchor a concrete topping which is poured over the slabs at a bridge site and also provide locations for hooking a crane used to transport the slab at a site.

Abstract: Resilient grout seal strips for sealing off a space formed between the bottom of a concrete panel and a support beam on which the panels are supported, concrete panels, decks, and support beams having resilient grout seals and methods for fabricating such panels, beams and decks are disclosed. The resilient seal strips have a first longitudinal edge adapted to be anchored on either the bottom of a precast panel or the top of a support beam adjacent the respective side edge thereof and extend substantially the length thereof, and have an opposed second longitudinal edge with a wide sealing portion therebetween adapted to engage the other of the panel bottom or the beam top adjacent the respective side edge thereof and form a sealing relation therewith.

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 method and apparatus for erecting building structures is presented. A plurality of wall panels are interconnected with each other in an array by column connectors interposed therebetween. Wall caps are then placed upon top surface portions of the wall panels and column connectors. Floor panels are then joined to the wall caps, with the floor panel forms having cavities to form headers over supporting wall panels and purlins between supporting wall panels. Rebar is placed into selected wall panels, purlins, and headers. Concrete is then deposited into selected ones of the wall panels and over the floor forms, filling the purlin and header cavities. Subsequently, a new array of wall panels and column connectors is erected on top of the poured concrete and the process is repeated to erect subsequent stories of the building.

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: A precast concrete panel for a composite floor has a number of concavities provided in a surface thereof. Each concavity is in the form of a groove and includes alternately formed shallow and deep sections which are adjacent each other. The concavities extend in a transverse direction of the concrete panel and are spaced apart from each other in a longitudinal direction of the panel.

Abstract: An element of insulating material, particularly for heat and/or sound insulation of buildings and for mounting between supports, has a body including a plurality of supports, has a body including a plurality of separate parts which are formed by at least one continuous beveled cut and shaped so that they are displaceable relative to one another during mounting and can be clamped between supporting elements.

Abstract: A highly sound insulating clay tile for the construction of floors has an outer substantially parallelepiped shape with symmetrical, laterally projecting portions for the support of each tile by reinforced concrete floor beams. Each tile comprises a peripheral wall having a substantially uniform thickness. Extending from this peripheral wall toward the inside of the tile are a plurality of very short vertical and horizontal partitions. The plurality of horizontal and vertical partitions are combined with other horizontal and obliquely inclined partitions for defining two main longitudinal cavities having a polygonal or circular cross section. The main cavities are symmetrically positioned with respect to a vertical center plane, and the cross-sectional area of the main cavities comprises a major portion of the cross-sectional area of each tile.

Abstract: The floor is composed of parallel spaced beams (11) having flanges (12) and blocks (13) of polystyrene foam which are laid on the flanges to bridge the gaps between the beams. Boards (26) are laid on the polystyrene blocks, and are supported by the blocks, which form load-bearing members of the floor. The blocks may have flanged portions (14) extending over the beams, so as to provide heat insulation.

Abstract: A precast beam for use in constructing a building includes a substantially flat middle portion extending the length of the beam and upstanding sidewalls on either side of the middle portion defining a trough which also extends the length of the beam; the trough is open at each end of the beam and the beam is provided with tensioned reinforcing rods in the middle portion along its length and a plurality of stress relieving slits spaced along the upstanding sidewalls to prevent camber developing; the reinforcing rods of the beam protrude a selected distance from the ends of the beam; a method of construction is disclosed where forms for the vertical components are set in place, the precast beam is then set in place before the cementitious material is poured into the forms for the vertical components whereby the installation and proper orientation of the reinforcing rods of the precast beam and the flooring as well as the reinforcing rods of the vertical components can be obtained.