US3382637A - Ribbed barrier with lapped, edgejoined facing panels - Google Patents

Ribbed barrier with lapped, edgejoined facing panels Download PDF

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Publication number
US3382637A
US3382637A US542284A US54228466A US3382637A US 3382637 A US3382637 A US 3382637A US 542284 A US542284 A US 542284A US 54228466 A US54228466 A US 54228466A US 3382637 A US3382637 A US 3382637A
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sheets
edges
sheet
holes
blocks
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US542284A
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Longinotti Enrico
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/28—Cross-ribbed floors

Definitions

  • a floor-ceiling structure comprised of a plurality of assembled horizontal metal sheets supported at their longitudinal edges and having overlapped transverse edges with aligned holes in which bolts are inserted and engage nuts to secure the sheets together and deform the sheets at the edges of the holes and form reinforcement collars.
  • a plurality of spaced blocks are mounted on the upper surface of the sheets and form a grid of channels which are filled with a concrete mass forming an overlying continuous slab above the blocks and channels.
  • This invention relates to a floor/ceiling structure.
  • a plurality of horizontally-extending metal sheets each having an upper surface and a lower surface and a row of holes adjacent each edge of each sheet, a plurality of spaced blocks mounted "on the upper surface of each sheet in rows arranged normally to one another thereby forming a grid of channels, parallel spaced beams supporting opposite edges of each said sheet, joining means for joining adjacent edges of adjacent sheets, said joining means co-operating with aligned holes of adjacent partly overlapping sheets to deform the edges of said holes to form reinforcement collars, and a concrete mass filling said grid of channels and forming an overlying continuous slab above said blocks and channels.
  • FIG. 1 is a fragmentary perspective view of a ceiling with parts broken away
  • FIGS. 2 and 3 are two details in section, to an enlarged scale, of a connecting and reinforcement element between a sheet of material and a concrete casting, and of a joining member between adjacent and partially superimposed metal sheets;
  • FIG. 4 is a fragmentary partially-sectioned plan View of a ceiling ready for the casting in situ
  • FIGS. 5 and 6 are two fragmentary sections on the lines VV and VIVI of FIG. 4, the ceiling being completed by cast concrete;
  • FIGS. 7, 8 and 9 show, in section, joints between the superimposed edges of lower supporting sheets
  • FIG. 10 is a vertical section of an assembly including the ceiling and vertical external and vertical partition walls, and a finishing cornice, aligned with the external wall;
  • FIG. 11 is a perspective view of the cornice
  • FIG. 12 is a horizontal section through an assembly of vertical walls.
  • a ceiling is constructed of rectangular metal sheets 1, which are prepared in situ or otherwise and each of said sheets carries upstanding blocks or projections 3 of a waterproof, lightweight niaterial, such as an expanded synthetic-resin (for example expanded polystyrol or polystyrene), which are cemented to the upper surface (in situ) of the sheet 1.
  • a waterproof, lightweight niaterial such as an expanded synthetic-resin (for example expanded polystyrol or polystyrene)
  • the blocks 3,382,637 Patented May 14, 1968 3 are preferably tapered upwardly and may be hollow and in this case they are cemented by their peripheral edges directed towards the sheet 1.
  • the blocks are aligned in two perpendicular directions to form a crossed grid of channels.
  • Profiled members 5 preferably of for-med metal sheet, extend along the channels extending in one direction and are secured to the sheet 1 and the edge 5a of each member 5 (FIG. 2) by welding.
  • the profiled members 5 have a generally Z-shape cross-section, but can have any other cross-section, provided that it ensures anchoring to concrete cast above the sheets 1 and blocks 3, and provide rigidity to the metal structure formed by the sheets 1 before effecting the casting in situ.
  • Holes 5b may be provided to enable air trapped in the concrete to escape and reduce porosity of the casting.
  • each sheet is provided with a corresponding series of holes.
  • I-section beams 7 are provided which are spaced apart by an amount corresponding to the width of the sheet 1, measured in the direction in which the profiled members 5 extend. These beams 7 are supported by main supporting structures, such as external I-section beams 9 (see FIG. 10) supported by columns 11, or by vertical walls or the like.
  • the profiled members 5 are supported at their ends, together with the sheet 1, on lower flanges of the beams 7 and provide sufficient rigidity to render the sheet 1 selfsupporting together with the blocks 3, when this sheet is located in situ on two contiguous beams 7.
  • Two parallel beams 7 may support two or more contiguous sheets 1, having appropriate modular sizes, which may be different from each other. Two contiguous sheets 1 have their edges superimposed to a limited extent, as is indicated for the edges 1a and 1b and the sheets are drilled at their edges and the holes are made to align with one another at least approximately when the two edges are superimposed.
  • each screw or bolt includes a head 13a by which it can be screwed up or unscrewed, a substantially cylindrical boss 13]) radiused at 13c at the end opposite the head 13a, and a screw-threaded shank 13d extending from the boss 13b.
  • the threaded shank 13d is capable of being screwed into a corresponding nut 14, which has an annular rim 14a with the internal corner radiused and defining a recess 14b, which is surrounded by said rim 14a.
  • the shank 13d has a diameter such that it can be inserted in the holes of the superimposed edges 1a, 1b of contiguous sheets 1.
  • the diameter of the boss 13b plus four times the sheet thickness 1 is substantially equal to or slightly smaller than the internal diameter of the recess 14b defined by the rim 14a.
  • This jointing arrangement firstly ensures a high tear resistance in the interior of the holes made in the superimposed edges la and 1b of the sheets 1. Secondly, a perfect matching of the adjacent sheets is obtained without requiring a perfect centering between the holes in the superimposed edges of the sheets; in fact any possible off-set between the holes, in which the screws 13 are to be inserted, is compensated in the deformation of the edges of the holes, which causes the formation of the collars 1x and the latter may also be at different levels.
  • This cast concrete forms both a continuous slab above the blocks 3 between one beam 7 and the next adjacent beam, and a grid of ribs between the rows of blocks 3.
  • the cast concrete 16 is contained between the vertical webs of the beams 7 and the structures on which the beams 7 lie, for example the beams 9, without requiring the provisional wooden shuttering.
  • the casting 16 may include steel reinforcements in the channels between the blocks 3 and in the upper continuous slab. But the crosssection of steel which resists tension, may be in practice provided only by the sheets 1, which are located in the best position for acting under tension in the cross-section of the complete ceiling structure. These sheets are anchored to the concrete casting 16 both by direct adhesion and by the presence of projecting portions which are embedded in the casting, such as the profiled members and the projecting parts formed by the nuts 14. The continuity of the tensile strength of the sheets 1 is ensured by the joints effected by the members 13, 14.
  • a floor or ceiling as described may be combined with vertical continuous wall bearing-structures or column structures, such as the columns 11 of FIGS. 10, 12.
  • Stirrups 18 (broken lines in FIG. may be anchored in the concrete casting 16 or portion 18:: thereofpassing through the beam 9 and serving to support cornice members 20 (FIG. 10 and 11).
  • These cornice members 20 have internal projections 20a which abut against the lower flanges of the beam 9, and are provided with holes 20b which accommodate the projections 18a of the stirrups 18, in such a manner to allow the anchoring of the cornice members 20.
  • the external wall may be formed by three vertical partitions including vertical panels 22, 24 and 26, and the internal partition walls include two vertical panels 28; the panels of each vertical wall are connected by plates, sheets or strips such as those denoted by 30a, and 3012, or 300 and 30d.
  • the vertical walls formed by the panels may be stiffened by profiled bar-section rods 32, or by the columns 11.
  • the rods 32 lying between the panels 22 and 24 may engage at their upper ends between the lower flange of the beam 9 and the cornice 20.
  • the rods lying between the panels 28 may be retained at their upper ends by horizontal ceiling panels 34, supported, for instance, by channel sections 36 and 38 connected to the sheets 1, and by any other suitable frame work.
  • Floor slabs 40 between which the partition walls formed by the panels 28 are confined, may alternatively or additionally abut against the vertical panels 26 of the external walls. This arrangement is further described in said copending application.
  • joining means for joining adjacent edges of adjacent sheets, said joining means co-operating with aligned holes of adjacent partly-overlapping sheets to deform the sheets at the edges of said holes to form reinforcement collars, and
  • joining means comprises a plurality of male and female screw-threaded members, each said male screw-threaded member comprising:
  • each said stiffening means comprises:
  • said beams which support the edge of said sheet comprise:

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Building Environments (AREA)
  • Joining Of Building Structures In Genera (AREA)
US542284A 1965-04-15 1966-04-13 Ribbed barrier with lapped, edgejoined facing panels Expired - Lifetime US3382637A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT857665 1965-04-15
IT364266 1966-02-15

Publications (1)

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US3382637A true US3382637A (en) 1968-05-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US542284A Expired - Lifetime US3382637A (en) 1965-04-15 1966-04-13 Ribbed barrier with lapped, edgejoined facing panels

Country Status (3)

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US (1) US3382637A (enrdf_load_stackoverflow)
BE (1) BE679420A (enrdf_load_stackoverflow)
GB (1) GB1132538A (enrdf_load_stackoverflow)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599384A (en) * 1969-06-02 1971-08-17 Koppers Co Inc Roof deck assembly
US3999341A (en) * 1975-09-29 1976-12-28 Stout Robert K Composite concrete structure and method of making same
US4468911A (en) * 1982-02-12 1984-09-04 Andrew Daga System for forming structural concrete
US4542612A (en) * 1982-02-12 1985-09-24 Andrew Daga System for forming structural concrete
US4599839A (en) * 1981-12-07 1986-07-15 Snitovski Jacov Improvement in ceiling blocks
US4624082A (en) * 1985-06-27 1986-11-25 Mansfield Peter W Grid system and method for cast forming monolithic concrete roof covering
US4696451A (en) * 1985-06-27 1987-09-29 Mansfield Peter W Grid system and method for cast forming monolithic concrete roof covering
US4841702A (en) * 1988-02-22 1989-06-27 Huettemann Erik W Insulated concrete building panels and method of making the same
US4942707A (en) * 1988-02-22 1990-07-24 Huettemann Erik W Load-bearing roof or ceiling assembly made up of insulated concrete panels
US5572842A (en) * 1994-10-07 1996-11-12 Firma Carl Freudenberg Hollow floor
US6106184A (en) * 1997-11-12 2000-08-22 Frazier Industrial Company Bolt connector with integral burr
US6128878A (en) * 1998-05-08 2000-10-10 Erickson; Dayle Eugene Portable storage building with concrete floor and method of assembling and moving same
EP1215346A1 (fr) * 2000-12-15 2002-06-19 Usinor Plancher utilise pour la construction de batiment compose de profiles metalliques en forme de u
US6457288B2 (en) * 2000-02-18 2002-10-01 Sergio Zambelli Prefabricated concrete panel for building floors in civil or industrial structures
US6729093B2 (en) * 2000-02-18 2004-05-04 Sergio Zambelli Prefabricated concrete panel for industrialized building with high thermal and/or acoustic insulation
US6817150B1 (en) * 2003-03-20 2004-11-16 Patrick E. Boeshart Form system for poured concrete
US20050034418A1 (en) * 2003-07-30 2005-02-17 Leonid Bravinski Methods and systems for fabricating composite structures including floor and roof structures
US20050180816A1 (en) * 2004-02-16 2005-08-18 Frank Greiser System of structural components for the connection of adjoining, especially stacked, structural parts
US20050262786A1 (en) * 2002-03-06 2005-12-01 Messenger Harold G Concrete foundation wall with a low density core and carbon fiber and steel reinforcement
US20060032187A1 (en) * 2004-06-14 2006-02-16 Plastedil S.A. Self-supporting construction element made of expanded plastic material, in particular for manufacturing building floors and floor structure incorporating such element
US20060075701A1 (en) * 2004-10-13 2006-04-13 Plastedil S.A. Composite construction element, in particular for manufacturing floor structures and wall structures for buildings and method for manufacturing the same
US20060075707A1 (en) * 2004-10-13 2006-04-13 Plastedil S.A. Floor structure
WO2006040624A1 (en) * 2004-10-13 2006-04-20 Plastedil S.A. Improved floor structure
US20060101779A1 (en) * 2004-10-26 2006-05-18 Michael Lejeune Insulated concrete panel billets
US20060218870A1 (en) * 2005-04-01 2006-10-05 Messenger Harold G Prestressed concrete building panel and method of fabricating the same
WO2007040412A3 (en) * 2005-10-05 2007-11-08 Craig Wallace Lonsdale Suspended concrete floor
US20080276559A1 (en) * 2007-05-11 2008-11-13 Oldcastle Precast, Inc. Low Density Concrete Wall Panel With Reinforced Insulation Members
US20080313990A1 (en) * 2007-06-19 2008-12-25 Plastedil S.A. Composite article for constructing floors
US20100050587A1 (en) * 2008-08-28 2010-03-04 Stoffel Neal J Modular sickle bar with integrated locking system
WO2011006202A1 (en) * 2009-07-14 2011-01-20 Holdip Pty Ltd Building floor structure and process for forming same
US8827235B1 (en) * 2012-05-11 2014-09-09 William L. Fisher, III Concrete form for building foundation construction with form insert creating recessed sections
US20150027071A1 (en) * 2008-01-24 2015-01-29 Nucor Corporation Composite wall system
US20150147138A1 (en) * 2013-11-27 2015-05-28 Kabo Tool Company Nut
US20180245358A1 (en) * 2013-06-05 2018-08-30 Fabio Parodi Method and apparatus for forming a formwork for a concrete slab
US10087642B2 (en) * 2016-01-11 2018-10-02 Robert Montoya Screen grid insulated concrete form panel system and method for construction and building
US20220049495A1 (en) * 2018-09-10 2022-02-17 Hcsl Pty Ltd Building panel
CN115324255A (zh) * 2022-09-01 2022-11-11 中建八局第一建设有限公司 一种体育场馆混合型钢空腹夹层板楼盖
US11536027B2 (en) 2014-09-15 2022-12-27 James Hodgson Composite foam and concrete foundation, composite foam and concrete wall and method of mounting composite foam and cement wall to the foundation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427318A (en) * 1982-07-16 1984-01-24 The Stolle Corporation Bolted joint connection
AU7572996A (en) * 1995-11-09 1997-05-29 Germix Oy Composite slab, a profile plate thereof and a method for producing a composite slab

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US759834A (en) * 1902-12-03 1904-05-10 Benjamin M Steele Means for uniting sheet-metal parts.
GB191125789A (en) * 1910-10-12 1912-03-21 Ferdinand Burchartz Improvements in Floors and Ceilings.
US1275668A (en) * 1918-03-07 1918-08-13 Peter Filippone Concrete floor and ceiling construction.
US1679915A (en) * 1926-05-21 1928-08-07 Murray Richard Ceiling construction
GB573106A (en) * 1943-11-26 1945-11-06 Albert Thomas Oliver Quick Improvements in concrete floors, walls and like structures
US2792164A (en) * 1951-08-10 1957-05-14 Cauffiel John Preformed structural units
US3328932A (en) * 1964-09-02 1967-07-04 David B Cheskin Void former and void former in a concrete floor construction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US759834A (en) * 1902-12-03 1904-05-10 Benjamin M Steele Means for uniting sheet-metal parts.
GB191125789A (en) * 1910-10-12 1912-03-21 Ferdinand Burchartz Improvements in Floors and Ceilings.
US1275668A (en) * 1918-03-07 1918-08-13 Peter Filippone Concrete floor and ceiling construction.
US1679915A (en) * 1926-05-21 1928-08-07 Murray Richard Ceiling construction
GB573106A (en) * 1943-11-26 1945-11-06 Albert Thomas Oliver Quick Improvements in concrete floors, walls and like structures
US2792164A (en) * 1951-08-10 1957-05-14 Cauffiel John Preformed structural units
US3328932A (en) * 1964-09-02 1967-07-04 David B Cheskin Void former and void former in a concrete floor construction

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599384A (en) * 1969-06-02 1971-08-17 Koppers Co Inc Roof deck assembly
US3999341A (en) * 1975-09-29 1976-12-28 Stout Robert K Composite concrete structure and method of making same
US4599839A (en) * 1981-12-07 1986-07-15 Snitovski Jacov Improvement in ceiling blocks
US4468911A (en) * 1982-02-12 1984-09-04 Andrew Daga System for forming structural concrete
US4542612A (en) * 1982-02-12 1985-09-24 Andrew Daga System for forming structural concrete
US4624082A (en) * 1985-06-27 1986-11-25 Mansfield Peter W Grid system and method for cast forming monolithic concrete roof covering
US4696451A (en) * 1985-06-27 1987-09-29 Mansfield Peter W Grid system and method for cast forming monolithic concrete roof covering
US4841702A (en) * 1988-02-22 1989-06-27 Huettemann Erik W Insulated concrete building panels and method of making the same
US4942707A (en) * 1988-02-22 1990-07-24 Huettemann Erik W Load-bearing roof or ceiling assembly made up of insulated concrete panels
US5572842A (en) * 1994-10-07 1996-11-12 Firma Carl Freudenberg Hollow floor
US6106184A (en) * 1997-11-12 2000-08-22 Frazier Industrial Company Bolt connector with integral burr
US6128878A (en) * 1998-05-08 2000-10-10 Erickson; Dayle Eugene Portable storage building with concrete floor and method of assembling and moving same
US6457288B2 (en) * 2000-02-18 2002-10-01 Sergio Zambelli Prefabricated concrete panel for building floors in civil or industrial structures
US6729093B2 (en) * 2000-02-18 2004-05-04 Sergio Zambelli Prefabricated concrete panel for industrialized building with high thermal and/or acoustic insulation
EP1215346A1 (fr) * 2000-12-15 2002-06-19 Usinor Plancher utilise pour la construction de batiment compose de profiles metalliques en forme de u
FR2818301A1 (fr) * 2000-12-15 2002-06-21 Usinor Plancher utilise pour la construction de batiment compose de profiles metalliques en forme de u
US20050262786A1 (en) * 2002-03-06 2005-12-01 Messenger Harold G Concrete foundation wall with a low density core and carbon fiber and steel reinforcement
US6817150B1 (en) * 2003-03-20 2004-11-16 Patrick E. Boeshart Form system for poured concrete
US20050034418A1 (en) * 2003-07-30 2005-02-17 Leonid Bravinski Methods and systems for fabricating composite structures including floor and roof structures
US8495846B2 (en) * 2003-07-30 2013-07-30 Leonid G. Bravinski Formwork assembly for fabricating composite structures including floor and roof structures
US20050180816A1 (en) * 2004-02-16 2005-08-18 Frank Greiser System of structural components for the connection of adjoining, especially stacked, structural parts
US20060032187A1 (en) * 2004-06-14 2006-02-16 Plastedil S.A. Self-supporting construction element made of expanded plastic material, in particular for manufacturing building floors and floor structure incorporating such element
US7814719B2 (en) * 2004-06-14 2010-10-19 Plastedil S.A. Self-supporting construction element made of expanded plastic material, in particular for manufacturing building floors and floor structure incorporating such element
US8006450B2 (en) * 2004-10-13 2011-08-30 Plastedil S.A. Composite floor structure with a protruding bar upper portion in a floor element groove
US20060075707A1 (en) * 2004-10-13 2006-04-13 Plastedil S.A. Floor structure
WO2006040624A1 (en) * 2004-10-13 2006-04-20 Plastedil S.A. Improved floor structure
US20060075701A1 (en) * 2004-10-13 2006-04-13 Plastedil S.A. Composite construction element, in particular for manufacturing floor structures and wall structures for buildings and method for manufacturing the same
US7216462B2 (en) * 2004-10-26 2007-05-15 Fabcon, Inc. Insulated concrete panel billets
WO2006047385A3 (en) * 2004-10-26 2007-09-20 Fabcon Inc Insulated concrete panel billets
US20060101779A1 (en) * 2004-10-26 2006-05-18 Michael Lejeune Insulated concrete panel billets
US20060218870A1 (en) * 2005-04-01 2006-10-05 Messenger Harold G Prestressed concrete building panel and method of fabricating the same
WO2007040412A3 (en) * 2005-10-05 2007-11-08 Craig Wallace Lonsdale Suspended concrete floor
US20080276559A1 (en) * 2007-05-11 2008-11-13 Oldcastle Precast, Inc. Low Density Concrete Wall Panel With Reinforced Insulation Members
US20080313990A1 (en) * 2007-06-19 2008-12-25 Plastedil S.A. Composite article for constructing floors
US7954291B2 (en) * 2007-06-19 2011-06-07 Plastedil S.A. Composite article for constructing floors
US9611644B2 (en) * 2008-01-24 2017-04-04 Nucor Corporation Composite wall system
US20150027071A1 (en) * 2008-01-24 2015-01-29 Nucor Corporation Composite wall system
US20100050587A1 (en) * 2008-08-28 2010-03-04 Stoffel Neal J Modular sickle bar with integrated locking system
WO2011006202A1 (en) * 2009-07-14 2011-01-20 Holdip Pty Ltd Building floor structure and process for forming same
US20120117911A1 (en) * 2009-07-14 2012-05-17 John Trenerry Building Floor Structure and Process for Forming Same
US9803363B2 (en) * 2009-07-14 2017-10-31 Holdip Pty Ltd. Building floor structure and process for forming same
US8827235B1 (en) * 2012-05-11 2014-09-09 William L. Fisher, III Concrete form for building foundation construction with form insert creating recessed sections
US20180245358A1 (en) * 2013-06-05 2018-08-30 Fabio Parodi Method and apparatus for forming a formwork for a concrete slab
US10066404B2 (en) * 2013-06-05 2018-09-04 Fabio Parodi Method and apparatus for forming a formwork for a concrete slab
US9416812B2 (en) * 2013-11-27 2016-08-16 Kabo Tool Company Nut
US20150147138A1 (en) * 2013-11-27 2015-05-28 Kabo Tool Company Nut
US11536027B2 (en) 2014-09-15 2022-12-27 James Hodgson Composite foam and concrete foundation, composite foam and concrete wall and method of mounting composite foam and cement wall to the foundation
US10087642B2 (en) * 2016-01-11 2018-10-02 Robert Montoya Screen grid insulated concrete form panel system and method for construction and building
US20220049495A1 (en) * 2018-09-10 2022-02-17 Hcsl Pty Ltd Building panel
CN115324255A (zh) * 2022-09-01 2022-11-11 中建八局第一建设有限公司 一种体育场馆混合型钢空腹夹层板楼盖
CN115324255B (zh) * 2022-09-01 2023-08-11 中建八局第一建设有限公司 一种体育场馆混合型钢空腹夹层板楼盖

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BE679420A (enrdf_load_stackoverflow) 1966-09-16
GB1132538A (en) 1968-11-06

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