Slab Or Panel Construction Patents (Class 52/223.6)
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Patent number: 8474201Abstract: A unitary, composite wall foundation and floor slab structure and system is provided by a pre-stressed cast concrete structure having a wall foundation region, a floor slab region and a transitional region therebetween and strands passing through all of those regions. One or more such structures are also post-tensioned using cables passing through tube embedded in the cast concrete structure and, when a plurality of such structures are employed in a modular manner, such post-tensioning draws all such modules into a larger unitary composite wall foundation and floor slab structure. The transition region may be further reinforced by angular reinforcing elements. Intermediate and end sections of varied shape may be used to complete the structure.Type: GrantFiled: December 3, 2010Date of Patent: July 2, 2013Inventor: Rodney I. Smith
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Publication number: 20130125484Abstract: Systems and methods of transferring loads between adjacent cast-in-place slabs, such as concrete slabs, and for accurately positioning dowels between adjacent sections of slabs are provided. A generally planar plate-type dowel is used which may be positioned within a cutaway in a preexisting slab of concrete. The dowel is shaped to generally conform to the shape of the cutaway, which is made by a saw blade. Once the dowel is positioned within the preexisting slab, a new slab is poured adjacent the preexisting slab. Rubber seals are included on the edges of the dowels to provide spacing or a gap between the dowel and the preexisting slab to allow for lateral independent movement of the adjacent slabs, and to prevent concrete from the newly poured second slab from entering into the gap. A saw unit for making a generally planar cut horizontally into an edge of a hardened concrete slab is also provided.Type: ApplicationFiled: January 8, 2013Publication date: May 23, 2013Applicant: P.N.A. CONSTRUCTION TECHNOLOGIES, INC.Inventor: P.N.A. CONSTRUCTION TECHNOLOGIES, INC.
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Patent number: 8431100Abstract: CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2-sequestering formed building material.Type: GrantFiled: July 26, 2011Date of Patent: April 30, 2013Assignee: Calera CorporationInventors: Brent R. Constantz, Andrew Youngs, Terence C. Holland
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Patent number: 8407959Abstract: A reinforced shrinkage compensating concrete slab has a major outer and inner faces defining a slab thickness and a centroid portion surrounded by a peripheral portion having outer peripheral edges defining a bulkhead length and width. A first plurality of reinforcing bars is embedded within the concrete slab on a plane which is substantially parallel to the major outer and inner faces. The first reinforcing bars extend in a first array having a first dimension defining a first on-centers-each-way orientation. A second plurality of reinforcing bars is embedded within the peripheral portion of the concrete slab in a second array which is a substantially intersecting and coplanar construction in relation to the first reinforcing bars. The second plurality of reinforcing bars are restricted to the peripheral portion and aligned with the expansive and shrinkage forces on a second dimension defining a second on-centers-each-way orientation so that the expansive and shrinkage forces are restrained.Type: GrantFiled: April 29, 2011Date of Patent: April 2, 2013Inventor: Donald G. W. Ytterberg
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Patent number: 8381485Abstract: A composite floor panel includes a concrete floor deck having a side portion and an edge member secured to the side portion. The edge member is configured to be positioned in proximity to an adjacent edge member. The adjacent edge member is coupled to an adjacent concrete floor deck. The edge member is further configured to have a junction formed between the edge member and the adjacent edge member to define a channel. The edge member is further configured to have a binder material placed in the channel to form a joint between the concrete floor deck and the adjacent concrete floor deck.Type: GrantFiled: May 4, 2010Date of Patent: February 26, 2013Assignee: Plattforms, Inc.Inventors: David H. Platt, John E. Charchenko, Daryl G. Hodgson, Russell J. Platt
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Patent number: 8375661Abstract: A deck pan assembly for receiving and supporting concrete that is utilized as a floor system in a building. The deck pan assembly comprises a plurality of deck pans with each deck pan including a bottom and an upturned edge. The deck pans are disposed in side-by-side relationship and spaced such that the turned up edges of two deck pans lie adjacent each other and form a connecting structure that permits the two deck pans to be connected together. Further the assembly includes an elongated stiffening connector extending along the connecting structure and at least partially covering the turned up edges that form the connecting structure. The elongated stiffening connector includes a pair of spaced apart sides, and the connecting structure, formed by the upturned edges of two deck pans, is inserted between the spaced apart sides such that the spaced apart sides extend downwardly adjacent outer surfaces of the connecting structure.Type: GrantFiled: April 15, 2011Date of Patent: February 19, 2013Assignee: The Steel Netork, Inc.Inventors: Edward R. diGirolamo, John C. Herrmann
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Publication number: 20130014457Abstract: Disclosed is a reinforcement structure of a rectangular flat metal plate, which is provided with: a rectangular flat metal plate that is predominantly subjected to in-plane shear, and supports a compressive load as necessary; strip-like rectangular section members that are spliced in parallel with both side edges of the flat plate in the longitudinal direction so as to reinforce the flat plate; and a plurality of square tube-like members that are parallelly arranged for each constant interval in the shorter side direction of the flat plate, and are spliced on one side surface of the flat plate, or are spliced so as to overlap one another across the flat plate between both surfaces of the front and back of the flat plate, wherein the torsional rigidity and torsional strength of the rectangular flat metal plate are increased to ensure a yield shear load, and shear yield strength can be stably maintained even in the transition of shear deformation after the yield.Type: ApplicationFiled: March 16, 2011Publication date: January 17, 2013Inventor: Toshiro Suzuki
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Publication number: 20120324811Abstract: Provided is a reinforced concrete partitioning structure that can exhibit electromagnetic shield function against an electromagnetic wave at target frequency. It includes an RC wall to attenuate an electromagnetic wave at target frequency propagating from an inner space to an outer space, a concrete portion having a thickness in a direction from the inner space to the outer space, and a front reinforcing bar lattice which forms a reinforcing bar plane in lattice at a position along the thickness of the concrete portion. The front reinforcing bar lattice has a plurality of longitudinal bars arranged at fixed spacing, and a plurality of transverse bars arranged at fixed spacing to intersect the longitudinal bars. The spacings of the longitudinal bars and transverse bars are adjusted according to the wavelength of an electromagnetic wave at the target frequency.Type: ApplicationFiled: February 23, 2010Publication date: December 27, 2012Applicant: TOKYU CONSTRUCTION CO., LTD.Inventors: Takaharu Kawase, Junichi Tanoi
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Patent number: 8323016Abstract: A device and method of producing a building panel with a compressed and curved edge including a press tool, a heat device and a lubricating device and a building panel with a curved edge produced by the device and method.Type: GrantFiled: September 15, 2006Date of Patent: December 4, 2012Assignee: Valinge Innovation Belgium BVBAInventors: Jan Jacobsson, Peter Wingardh
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Publication number: 20120285108Abstract: A load transfer device is provided to connect concrete elements including, but not limited to, sandwich and double wall panel wythes, roof, floor, balcony and canopy members, and pavement. The device may be used to connect and transfer loads between the components of sandwich and double wall panels. The device includes two load transfer members positioned at an angle with respect to one another. Additionally provided are a retention housing for retaining one or more load transfer members at their angled positions and a depth locating means for retaining one or more load transfer members at their proper depth. Also provided are sandwich wall panels and double wall panels employing the load transfer device and methods for manufacturing sandwich wall panels and double wall panels employing the disclosed load transfer device.Type: ApplicationFiled: May 10, 2012Publication date: November 15, 2012Applicant: Composite Technologies CorporationInventor: Robert T. Long, SR.
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Publication number: 20120255248Abstract: Disclosed is a roofing assembly including a panel configured to define a major surface, a first end, and a second end opposite the first end; and a frame including a first transverse profile attached to the first end of the panel, and a second transverse profile attached to the second end of the panel. A force-applicator is located between the first transverse profile and the second transverse profile. The force-applicator is configured to apply a force between the first transverse profile and the second transverse profile, thereby applying a tension force to the panel. The force-applicator defines a longitudinal axis displaced from the major surface of the panel, the force-applicator including two parts capable of being moved, one with respect to the other, connected to one another by a sliding connection controlled by a spring.Type: ApplicationFiled: April 10, 2012Publication date: October 11, 2012Inventor: Charles CHAPUS
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Patent number: 8276334Abstract: A cable anchor has ball surfaces that permit misalignment between the cable and a stem of the anchor, and a fitting that permits the introduction of a corrosion inhibitor to the interior of the anchor.Type: GrantFiled: October 12, 2011Date of Patent: October 2, 2012Assignee: Actuant CorporationInventors: Thomas F. Mathews, Stan Landry, Robert K. Van Noord
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Publication number: 20120240497Abstract: A reinforcing structure is described for use in supporting a floor at a junction thereof with a structural column. The structure has several generally elongate, preassembled frame structures, each frame structure are disposed in rows parallel to one another. The frame structures incorporate the main top and bottom reinforcement bars for the reinforced floor with integral shear connectors forming part of the frame structures and the shear connectors tying the top and bottom reinforcement together. Transverse internal reinforcing bars are disposed parallel to one another and connected across the top or bottom reinforcing bars of each frame structure to connect the preassembled frame structures into a cagework of spaced-apart, rigidly connected frame structures.Type: ApplicationFiled: April 26, 2010Publication date: September 27, 2012Inventors: Maurice O'Brien, Anne O'Brien
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Patent number: 8256173Abstract: An environmentally sustainable form-inclusion system that can be utilized in reinforced concrete structures. A goal of this invention is to provide structural systems that achieve the highest level of environmental sustainability by minimizing the structure's carbon footprint and embodied energy. This engineered form-inclusion system uses materials that might otherwise become waste in landfills. The system is designed to significantly reduce raw materials, labor for placement, and transportation of material for building construction. Materials used in this engineered system, that might otherwise be placed in landfills, include but are not limited to plastic bottles, bags, waste Styrofoam, packing materials, rubber tires, and other similar waste materials, preferably compressed or assembled into controlled shapes. The shapes of these forms can be spherical, square, rectangular, cylindrical, or any other, and are specifically engineered to provide form inclusions to significantly reduce the material (e.g.Type: GrantFiled: November 17, 2008Date of Patent: September 4, 2012Assignee: Skidmore, Owings & Merrill LLPInventors: Mark P. Sarkisian, Craig W. Hartman
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Patent number: 8245469Abstract: A deck assembly module is disclosed. The deck assembly module can be installed into the steel frame of a steel framed building. The deck assembly module includes a cellular metal deck. In an embodiment, the cellular metal deck includes a bottom plate having a top major surface and a bottom major surface, an angled decking sheet, and fireproof insulation. The angled decking sheet is angled to form a repeating pattern of troughs and peaks, the angled decking is adjacent to the top major surface of the bottom plate, and the fireproof insulation is located in channels formed by the peaks of the angled decking sheet and the top surface of the bottom plate and the angled decking sheet. The deck assembly module may also include a concrete portion that includes a top major surface, referred to as a concrete deck.Type: GrantFiled: May 20, 2011Date of Patent: August 21, 2012Assignee: Aditazz, Inc.Inventors: Zigmund Rubel, Mabe Ng
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Patent number: 8240096Abstract: Disclosed herein is a bracket structure for increasing strength of a concrete structure and enabling easy construction. The bracket structure includes an affixing bracket and a pre-stressing steel plate. The affixing bracket comprises a holding member connected to a bottom of the concrete structure using an anchor bolt, and a support member connected to the holding member and forming a channel to increase the moment of inertia of area of the concrete structure. The pre-stressing steel plate is connected to the support member of the affixing bracket, and applies stress to the concrete structure.Type: GrantFiled: September 22, 2010Date of Patent: August 14, 2012Assignees: Industry-Academic Cooperation Foundation, Yonsei UniversityInventor: Sang-hyo Kim
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Patent number: 8215068Abstract: According to one embodiment, the energy dissipation of a structural element is increased by inserting one or more resisting elements into the structural element at any time during or after construction of the structural element. The continuous resisting elements are rigidly attached to the structural at one end and connected to the structural element by and through a damping material over at least a portion of its length. When a dynamic force is applied to the structural elements, such as may result from wind or earthquakes, there will be a strain in the structure, in a direction parallel with the longitudinal direction of the resisting elements. In this way, the forces and deformations within the structure will result in a relative motion between the structural element and resisting element, a substantial portion of which is ultimately transmitted by and through the damping material layer.Type: GrantFiled: October 27, 2009Date of Patent: July 10, 2012Inventor: Steven James Bongiorno
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Publication number: 20120137599Abstract: Building accessible for persons, in particular a garage, comprising a load bearing structure, wherein at least a part of a facade of said building is formed by a textile, wherein at least 30% of the total surface area of the facade is open to air. Preferably the textile has a coarseness such that at least 30% of the total surface of said textile is open to air.Type: ApplicationFiled: July 22, 2010Publication date: June 7, 2012Applicant: G.S. HOFMAN HOLDING B.V.Inventor: Gerardus Stephanus Hofman
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Patent number: 8181408Abstract: Disclosed is a novel wooden wall or ceiling paneling or flooring manufactured from wine or whiskey cask staves having a desirable patina that emits a scent having a bouquet resembling the wine or whiskey that was aged in the cask, as well as a method to manufacture the wooden paneling or flooring that includes the steps of first straightening the curved cask staves, and then milling the non-stained surface layer of the straightened wine cask staves to a predetermined thickness and hand scrapping or shaving a portion of the stained surface layer of the wine cask stave to remove any splintering that may have occurred during the stave straightening process. The straightened, milled and hand scraped or shaved stave is affixed to a wall or predetermined sub flooring surface with the stained, hand scraped surface layer remaining exposed for viewing or foot traffic and to permit the release of the wine, whiskey or other spirit bouquet into the room.Type: GrantFiled: November 17, 2008Date of Patent: May 22, 2012Inventor: Joseph P. Triglia
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Publication number: 20120090254Abstract: A system and a method for a reinforced concrete slab are disclosed. The system includes a plurality of column strips of a predefined thickness positioned on a plurality of columns, a plurality of transitional strips positioned adjacent to the plurality of column strips, whereby a thickness of the plurality of transitional strips comparatively less than the predefined thickness of the plurality of column strips, a central panel bound by the plurality of transitional strips, whereby the thickness of the central panel comparatively less than the thickness of the plurality of transitional strips and a plurality of column steps positioned in between the plurality of columns and the plurality of column strips.Type: ApplicationFiled: September 7, 2011Publication date: April 19, 2012Inventor: Venkata Rangarao Vemuri
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Patent number: 8146306Abstract: An anchor for a post tension reinforcement includes an anchor base having at least one wedge receiving bore therein and reinforcing ribs extending from an exterior of the receiving bore. A longitudinal length of the wedge receiving bore, a position of a midpoint of an axial length of the wedge receiving bore with respect to a load bearing basal surface of the anchor base, and a lateral extension and height of the ribs are selected such that a specific weight of the anchor base is at most 0.1 pounds per square inch of load bearing area.Type: GrantFiled: July 14, 2010Date of Patent: April 3, 2012Assignee: Hayes Specialty Machining, Ltd.Inventors: Norris O. Hayes, Randy Draginis
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Publication number: 20120055102Abstract: This functional system for a cement mortar panel (102, 135, 160, 196, 216) with prestressed biaxial reinforcement (136, 161) consists concretely of a system contributing to the physical and formal and to the handling and use in conditions of maximum safety and efficiency of a panel (102, 135, 160, 196, 216) of the type prefabricated with cement mortar having prestressed biaxial reinforcement (136, 161) in which the cement mortar panel has embedded in the mass thereof versatile operating means (100, 157, 171, 175, 196, 217) on the panel ensemble (102, 135, 160, 196, 216) allowing for the handling and/or fixing thereof to suspension means to the structure of a building, of means controlling seismic phenomena and the settling movements of the building, means reducing damp inside the building and means reducing the infiltration of damp inside the panel.Type: ApplicationFiled: March 26, 2010Publication date: March 8, 2012Inventor: Carlos Fradera Pellicer
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Patent number: 8112955Abstract: A building comprises first and second floors and respective first and second ceilings; a foundation; and a stud wall extending between the second floor and the second ceiling. A cross member is operably attached within the stud wall. A tie rod anchor is anchored in the foundation. A series of interconnected tie rods has one end secured to the tie rod anchor and an end portion extending through the cross member, the interconnected tie rods extending within the stud wall through the second floor. A nut is secured to the end portion of the interconnected tie rods. A loaded spring is disposed between the nut and the cross member to maintain the interconnected tie rods under tension when a slack develops on the interconnected tie rods.Type: GrantFiled: February 22, 2010Date of Patent: February 14, 2012Inventor: Thomas M. Espinosa
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Patent number: 8091317Abstract: A wire bolt comprising an elongated section of wire rope with a section of threaded stud attached to each end is disclosed for use in reinforcing concrete structures. Part of the wire rope portion is coated with a substance to prevent that portion from bonding with the concrete. The threaded rod portion can be attached within the concrete by epoxy or attached to the concrete by appropriate mechanical means. The wire bolt can be attached to a concrete building structure during initial construction of a structure or retrofit into existing structures. Wire bolts should be installed in areas susceptible to shear or bending failure and serve to prevent the concrete sections from separating in a seismic event.Type: GrantFiled: March 1, 2004Date of Patent: January 10, 2012Inventor: Charles T. Brackett
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Patent number: 8065845Abstract: A post-tension apparatus has an anchor member having a cavity formed in an interior thereof, a tendon extending through the cavity of the anchor member the has an unsheathed portion and a sheathed portion, an encapsulation affixed to the anchor member and extending thereover that has a trumpet formed at one end of the anchor member, a sheathing lock positioned in the cavity and engaged with the sheathed portion of the tendon, a seal affixed within the trumpet so as to reside in liquid-tight sealing relation with the sheathed portion of the tendon, and wedges recessed in the cavity of the anchor member. The pair of wedges is engaged with the unsheathed portion of the tendon. The sheathing lock is positioned adjacent an end of the pair of wedges.Type: GrantFiled: July 18, 2008Date of Patent: November 29, 2011Inventor: Felix L. Sorkin
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Patent number: 8051615Abstract: A cable anchor has ball surfaces that permit misalignment between the cable and a stem of the anchor, and a fitting that permits the introduction of a corrosion inhibitor to the interior of the anchor.Type: GrantFiled: May 14, 2008Date of Patent: November 8, 2011Assignee: Actuant CorporationInventors: Thomas F. Mathews, Stan Landry, Robert K. Van Noord
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Publication number: 20110258949Abstract: The invention relates to a prestressed slab element (10), in particular a concrete slab element, manufactured according to the in-situ concrete method or prefabricated in a concrete precasting plant which in top view of its surface (11) comprises at least one hollow element region (20) with hollow elements (21) contained therein and at least one support region (30) for supporting or holding the slab element (10) without hollow elements (21), as well as stressing elements (40) for reinforcing the slab element (10), which each are installed through the slab element (10) and form a lattice-shaped structure (50), wherein individual fields (51) of this structure (50) establish a support or hollow element region (20, 30), and laterally adjoining fields (51) of the lattice-shaped structure (50) form at least one longish support strip (60) which joins individual support regions (30) with one another and which is embodied in a reinforced manner, characterized by stressing elements (40), which in a lateral view of theType: ApplicationFiled: October 26, 2009Publication date: October 27, 2011Inventors: Michael StĂ¼cklin, Dejan Krecov
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Publication number: 20110225908Abstract: Systems and methods of transferring loads between adjacent cast-in-place slabs, such as concrete slabs, and for accurately positioning dowels between adjacent sections of slabs are provided. A generally planar plate-type dowel is used which may be positioned within a cutaway in a preexisting slab of concrete. The dowel is shaped to generally conform to the shape of the cutaway, which is made by a saw blade. Once the dowel is positioned within the preexisting slab, a new slab is poured adjacent the preexisting slab. Rubber seals are included on the edges of the dowels to provide spacing or a gap between the dowel and the preexisting slab to allow for lateral independent movement of the adjacent slabs, and to prevent concrete from the newly poured second slab from entering into the gap. A saw unit for making a generally planar cut horizontally into an edge of a hardened concrete slab is also provided.Type: ApplicationFiled: May 26, 2011Publication date: September 22, 2011Applicant: P.N.A. Construction Technologies, Inc.Inventor: Donald S. Nadler
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Patent number: 8006446Abstract: CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2-sequestering formed building material.Type: GrantFiled: June 29, 2010Date of Patent: August 30, 2011Assignee: Calera CorporationInventors: Brent R. Constantz, Andrew Youngs, Terence C. Holland
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Patent number: 7975443Abstract: A precast prestress raised access floor construction is provided which includes a precast prestress concrete slab, having an upper base floor surface and a lower surface, a plurality of raised access floor panel pedestal support members bearing directly upon the upper base floor surface, and a plurality of raised access floor panels connected to the support means whereby a void is formed between the floor panels and the upper base floor surface.Type: GrantFiled: June 16, 2009Date of Patent: July 12, 2011Inventors: Gary Meyer, Charlie Johnson, Jim Blackledge, Dan Parker, John Hanlon
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Publication number: 20110131905Abstract: An improved cementitious panel of the type which, in use, is supported, with its upper surface in biaxial compression, by steel beams and forms part of a deck or roof in a modular structure, wherein the improvement comprises a single layer of reinforcement in the panel.Type: ApplicationFiled: August 27, 2010Publication date: June 9, 2011Inventors: Paul Aumuller, Ed Newton, Thomas Koester
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Patent number: 7937901Abstract: A tendon-identifying, post-tensioned, elevated concrete slab, and method and form panel apparatus for constructing the same, provides a distinctively-patterned bottom side slab surface in which the slab has a full thickness dimension extending along each individual post-tensioning uniform and banded tendon embedded within the slab and a reduced-thickness dimension in the areas between each individual, adjacent laterally spaced apart, longitudinally extending uniform tendon of the post-tensioning system, whereby the location of embedded tendons can be identified by the full thickness areas of the slab appearing as prominent, elongated rib-like surfaces extending between inwardly recessed surfaces of the bottom side of the slab.Type: GrantFiled: March 28, 2006Date of Patent: May 10, 2011Inventor: Douglas L. Sarkkinen
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Patent number: 7856778Abstract: Composite wall panels are a viable method of quick and inexpensive building. Providing a composite wall panel with increased shear resistance and axial load capacity is extremely desirable. A fiber reinforced polymer (FRP) cage incorporated into composite wall panels which forms a wall panel with these desirable characteristics and a method of forming such a composite wall panel is disclosed and described. The FRP cages can include FRP shells or sleeves which include two or more bars secured thereto. One or more FRP cages can be incorporated into a composite wall panel where a portion of the FRP shell is imbedded in each of two concrete layers with an insulation layer therebetween. The resulting FRP reinforced composite wall panel has improved shear resistance and axial compressive strength which can allow for use in load bearing applications and generally improved properties such as thermal insulation.Type: GrantFiled: May 25, 2006Date of Patent: December 28, 2010Assignee: University of Utah FoundationInventors: Chris P. Pantelides, Lawrence D. Reaveley
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Publication number: 20100313505Abstract: The invention relates to a light-weight load-bearing structure (1) with optimized compression zone (2), where along one or more compression zones (2) in the structure (1) to be cast a core (3) of strong concrete is provided, which core (3) is surrounded by concrete of less strength (4) compared to the core (3) of strong concrete. The invention also relates to a method of casting of light-weight load-bearing structures (1) with optimized compression zone (2) where one or more channels, grooves, ducts, pipes and/or hoses (5) formed in the load-bearing structure (1) serves as moulds for moulding one or more cores (3) of strong concrete in the light-weight load-bearing structure (1).Type: ApplicationFiled: November 21, 2008Publication date: December 16, 2010Applicant: TECHNICAL UNIVERSITY OF DENMARKInventor: Kristian Hertz
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Publication number: 20100287859Abstract: A concrete beam assembly has a concrete beam with two vertical webs spaced apart from one another that extend along the length of the beam. A horizontal first flange extends between the first edges of the webs, so that the webs and first flange define a channel extending along the length of the beam. Horizontal second and third flanges extend laterally outward in opposing directions from the second edges of the webs. A flat flooring structure is supported by the upper surfaces of the beam.Type: ApplicationFiled: May 18, 2009Publication date: November 18, 2010Inventor: John W. Hanlon
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Patent number: 7823352Abstract: A construction element for heat insulation between two construction parts, in particular between a building part and a protruding exterior part, is provided, and includes an insulating body (2) to be arranged between the two construction parts with reinforcement elements (4, 5, 6) that can cross it and that can be connected to the two construction parts, with at least shear force rods (6) being provided as reinforcement elements. The construction element is here adjusted for the installation in passively energy conserving houses such that the insulating body is provided with a protrusion (3), which includes open recesses (7) for the upper exit sections (6f) of the shear force rods (6) that extend out of the insulating body, and extend in the direction of the supporting building part to the area of the horizontally protruding shear force rod sections (6a) so that it laterally overlaps the bent shear force rod sections (6d) in their entirety.Type: GrantFiled: August 18, 2006Date of Patent: November 2, 2010Assignee: Schöck Bauteile GmbHInventor: Hubert Fritschi
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Patent number: 7770342Abstract: A stress-optimized structural support which may be utilized as a beam or assembled with similar supports to form a building floor or roof panel or a bridge deck utilizes an open core element, made preferably of suitably treated fluted paper, upper and lower thin skin sheets, preferably steel skins, and a layer of concrete poured over the top skin. Modules comprising the hollow core element and the upper and lower skin sheets are fabricated to lengths required for building floor, roof or bridge spans and, when joined by welding or otherwise joining the upper and lower skin sheets of adjacent elements along their full lengths, provide a floor or roof deck structure of a large span with horizontal stresses distributed omnidirectionally. A post-stressing tensile system redistributes and reduces the load on the roof deck by about one-half.Type: GrantFiled: July 12, 2007Date of Patent: August 10, 2010Inventor: Carl R. Marschke
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Patent number: 7771684Abstract: CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2-sequestering formed building material.Type: GrantFiled: September 30, 2009Date of Patent: August 10, 2010Assignee: Calera CorporationInventors: Brent R. Constantz, Andrew Youngs, Terence C. Holland
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Patent number: 7765752Abstract: An anchor system for a tendon includes a load transfer device having at least one wedge receiving bore therein. The wedge receiving bore has a tapered interior surface. The anchor system also includes a wedge configured to be affixed to an exterior surface of a tendon. The wedge has a tapered exterior surface configured to cooperate with the tapered interior surface of the wedge receiving bore to laterally compress the wedge against a tendon when the wedge is moved longitudinally into the bore. Taper angle of the wedge and a taper angle of the wedge receiving bore are selected such that longitudinal compressive force exerted by the wedge is substantially evenly longitudinally distributed.Type: GrantFiled: February 20, 2008Date of Patent: August 3, 2010Assignee: Hayes Specialty Machining, Ltd.Inventors: Norris O. Hayes, Randy Draginis
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Patent number: 7762029Abstract: An anchor for a post tension reinforcement is disclosed. The anchor includes an anchor base having at least one wedge receiving bore therein. The wedge receiving bore is tapered in diameter at a single selected taper angle. An axial length of the wedge receiving bore is selected so that a minimum internal diameter of the wedge receiving bore is at least as large as an external diameter of a sheath on a reinforcing tendon. In another aspect, the wedge receiving bore is positioned in the anchor so that its longitudinal center is approximately collocated with a load bearing basal surface of the anchor.Type: GrantFiled: November 9, 2004Date of Patent: July 27, 2010Assignee: Hayes Specialty Machining, Ltd.Inventors: Norris O. Hayes, Randy Draginis
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Publication number: 20100154332Abstract: A precast reinforced concrete base mat element, a base mat assembly and method for constructing a base mat assembly from a plurality of the base mat elements are described. The base mat element comprises a concrete body having first and second conduits extending there through in first and second generally perpendicular directions and a liner plate anchored in the concrete body. Preferably the concrete bodies have interlocking surfaces formed there on. A plurality of the base mat elements may be juxtaposed together with the interlocking surfaces interlocking with one another and with the tensile members extending through the first and second tensile conduits and being post-tensioned and anchored about the base mat elements to clamp the base mat elements together. The liner plates may then be welded together to form a a generally planar membrane.Type: ApplicationFiled: December 23, 2008Publication date: June 24, 2010Inventors: Lestle R. Shockley, Vincent G. Borov
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Publication number: 20100132283Abstract: A composite floor panel includes a frame assembly having a base plate, a plurality of first lateral supports secured to the base plate, and a plurality of second lateral supports secured to the base plate. The first lateral supports lie in a first plane and the second lateral supports lie in a second plane. The first plane and the second plane each intersect the base plate and the first plane is disposed at an angle relative to the second plane. The composite floor panel also includes a concrete portion coupled to and supported by the first lateral supports and the second lateral supports.Type: ApplicationFiled: November 13, 2009Publication date: June 3, 2010Applicant: PLATTFORMS, INC.Inventors: David H. Platt, John E. Charchenko, Daryl G. Hodgson, Russell J. Platt
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Patent number: 7726082Abstract: A wedge for a tendon retaining anchor includes at least two circumferential wedge segments adapted to be placed on an exterior of a tendon. The wedge segments have an exterior surface adapted to cooperate with a receiving bore of a load transfer device and an interior surface having gripping elements thereon. A circumferential dimension of the wedge segments is selected so that a total uncompressed gap between circumferential ends of the wedge segments when the segments are applied to an exterior surface of the tendon is at most about 2.4 times a height of the gripping elements. In another aspect, a tendon retaining system includes an anchor having a wedge receiving bore and wedge segments adapted to cooperate with the wedge receiving bore. The wedge segments include gripping elements on an interior surface thereof. The system includes a device adapted to limit lateral compression of the wedge segments.Type: GrantFiled: December 4, 2004Date of Patent: June 1, 2010Assignee: Hayes Specialty Machining Ltd.Inventors: Norris O. Hayes, Randy Draginis
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Publication number: 20100037545Abstract: The possibility of special lightening, insulating and reinforcing intermediate floor constructions enables fast building of semi-prefibraceted and prefabricated floor with complete insulation, bearing capacity and smaller price. Floor elements and are constructed to that already present steel space trusses can be placed in their channels, so that are hastened the building of intermediate floor constructions and makes them cheaper, too. They are minimum shorting at the ends and at the middle of beams, so the works below can be proceeding and the required working time is shorter. The intermediate floor construction is already insulating, so they are no need for insulating, which makes the construction cheaper and the required working time shorter. The plates are enabling the increase of the height of the floor constructions, by tying two beams in the construction. Usage of distance elements and protects the reinforcement in floor construction, so they are no need for corrosion protection.Type: ApplicationFiled: November 15, 2006Publication date: February 18, 2010Inventor: Milan Kekanovic
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Patent number: 7658041Abstract: The clamping element is supported in a positive fit on the base plate in the direction of traction of the traction element in the anchoring for pre-stressed strip-shaped traction elements on supporting structures. The traction element is received between a base plate which is fixed to the supporting structure and a clamping plate which can be clamped against the base plate and is fixed by adhesion and clamping. The clamping plate can include, on each side of the traction element, a retaining cam plate which projects in a downward manner and which engages in a retaining recess of the base plate, or can include a retaining projection which supports a stop which is connected to the base plate. The stops on the upper side of the base plate are welded push blocks which are arranged on both sides and/or in the region of the front side of the clamping plate.Type: GrantFiled: September 2, 2004Date of Patent: February 9, 2010Assignee: Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbHInventors: Hans-Peter Andrä, Markus Maier, Roger Beyerlein
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Patent number: 7641963Abstract: A panel, in particular floor panel, having a support board made of glued and compressed fiber material to which a termination layer is applied in each case on a top side and an underside, and the termination layer of the top side has a structured surface, and to a process for producing such a panel or such a support board. The object of the invention is to provide a panel or a support board comprising binders and fillers and also a process for producing the same, by means of which surface-structured panels can be produced more quickly and cost-effectively. This object is achieved in that the density on the top side of the support board is lower than the density of the support board on the underside.Type: GrantFiled: October 31, 2003Date of Patent: January 5, 2010Assignee: Kronotec AGInventor: Thomas Grafenauer
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Publication number: 20090320393Abstract: A precast prestress raised access floor construction is provided which includes a precast prestress concrete slab, having an upper base floor surface and a lower surface, a plurality of raised access floor panel pedestal support members bearing directly upon the upper base floor surface, and a plurality of raised access floor panels connected to the support means whereby a void is formed between the floor panels and the upper base floor surface.Type: ApplicationFiled: June 16, 2009Publication date: December 31, 2009Inventors: Gary Meyer, Charlie Johnson, Jim Blackledge, Dan Parker, John Hanlon
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Publication number: 20090301011Abstract: A reinforced concrete ceiling is characterized by a combination of the following features: a concrete slab (1) the thickness (D) of which falls short of the total thickness of the reinforced concrete ceiling, and intersecting ribs (2) which are each connected with an end region (3) to the concrete slab (1) in a force-transmitting manner and project freely upwards from the concrete slab (1), i.e., without being integrated in a further supporting surface structure, wherein their top end regions (4) are designed to absorb compressive and/or tensile forces and wherein the ribs (2) are connected to each other in a frictional manner at the respective intersection points (9), and their regions lying in each case between the top and bottom end regions (3,4) have at least one aperture (6).Type: ApplicationFiled: May 30, 2007Publication date: December 10, 2009Inventors: Johann Kollegger, Stefan L. Burtscher, Andreas Kainz
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Patent number: 7596915Abstract: A method of forming an insulated concrete foundation is provided comprising constructing a foundation frame, the frame comprising an insulating form having an opening, inserting a pocket former into the opening; placing concrete inside the foundation frame; and removing the pocket former after the placed concrete has set, wherein the concrete forms a pocket in the placed concrete that is accessible through the opening. The method may further comprise sealing the opening by placing a sealing plug or sealing material in the opening. A system for forming an insulated concrete foundation is provided comprising a plurality of interconnected insulating forms, the insulating forms having a rigid outer member protecting and encasing an insulating material, and at least one gripping lip extending outwardly from the outer member to provide a pest barrier. At least one insulating form has an opening into which a removable pocket former is inserted.Type: GrantFiled: May 29, 2007Date of Patent: October 6, 2009Assignee: Davis Energy Group, Inc.Inventors: Brain E. Lee, Stephan K. Barsun, Richard C. Bourne, Marc A. Hoeschele, David A. Springer
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Patent number: 7556208Abstract: The invention relates to a pre-assembled plate consisting of armored concrete, especially for the use as a component of a solid roadway for high-speed means of transport. At least two steel rods extending in the longitudinal direction of the pre-assembled plate of armored concrete (10) and protruding over the concrete surface thereof on the front face (17) are provided. The pre-assembled plate (10) is provided with at least one, preferably several, predetermined breaking points (15) which extends crosswise in relation to the steel rods (19). The steel rod (19) is anchored in the area between the front face (17) of the pre-assembled plate (10) and the first predetermined breaking point (1) respectively and is mounted in the direction towards the respective front face (17) in the longitudinal direction thereof in an essentially freely moveable manner.Type: GrantFiled: September 20, 2000Date of Patent: July 7, 2009Assignee: Max Bogl Bauunternehmung GmbH & Company KGInventor: Dieter Reichel