US2906113A - Interconnected lightweight floor slabs - Google Patents

Interconnected lightweight floor slabs Download PDF

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Publication number
US2906113A
US2906113A US479589A US47958955A US2906113A US 2906113 A US2906113 A US 2906113A US 479589 A US479589 A US 479589A US 47958955 A US47958955 A US 47958955A US 2906113 A US2906113 A US 2906113A
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US
United States
Prior art keywords
slabs
sheet metal
lightweight concrete
joints
concrete slabs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US479589A
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English (en)
Inventor
Engwall Anders Bertil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casius Corp Ltd
Original Assignee
Casius Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Casius Corp Ltd filed Critical Casius Corp Ltd
Application granted granted Critical
Publication of US2906113A publication Critical patent/US2906113A/en
Anticipated expiration legal-status Critical
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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
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry

Definitions

  • the present invention relates to an arrangement in roof and floor structures of the kind comprising selfsupporting concrete slabs placed side by side and connected to one another, and particularly in connection with lightweight concrete slabs.
  • the lightweight concrete slabs are usually rectangular and when they are employed for roofs or flooring they are generally laid transversely between supporting walls or beams so that they are freely suspended over at least a part of their length.
  • the end joints between the slabs run parallel to the supporting walls or beams and preferably immediately over, or at least in the vicinity of, the said walls or beams.
  • connections of this kind have been previously produced by filling up the longitudinal grooves which are open at the top between the slabs with cement mortar; armoring rods being cast in the longitudinal groove transversely across the end joints in order to take up the tensile stresses between the slabs.
  • the present invention has for its object to provide a solution for this problem and relates to an arrangement in roofs and floor structures of the kind built up from a plurality of lightweight concrete slabs which are freely suspended over at least a part of their length and are laid on supporting walls or beams which are separated from each other.
  • Fig. l is a plan view of a roof or floor under construction and incomplete showing a series of slabs connected together by my improved method.
  • Fig. 2 is an enlarged isometric detailed view of my invention.
  • the main feature characterizing the arrangement according to the invention resides therein that in the joints between the lightweight concrete slabs which run substantially at right angles to the supporting walls or beams, sheet metal strips arranged edgewise and provided with vertical flaps projecting on both sides and penetrating into the lightweight concrete slabs, are driven in from the top.
  • the sheet metal strips are hereby primarily driven in between the lightweight concrete slabs transversely across an end joint which is parallel to the walls or beams.
  • FIG. 1 indicates the various lightweight concrete slabs in the roof or floor, all of which are rectangular and are laid in their longitudinal direction at right angles to the beam 2 or partition wall 7 supporting the roof of building 8, and across which the ends of the slabs abut against one another in an end joint 3 parallel to the supporting beam.
  • Transversely over .the supporting beam and across the end joint 3, longitudinally extended sheet metal strips 4 arranged edgewise are driven into the joints between the lightweight concrete slabs 1 which run at right angles to the beam 2.
  • the said sheet metal strips are provided with stamped out vertical flaps 5 bent out onboth sides at right angles to the sheet metal strip.
  • flaps 5 which have a free length which is substantially less than the width of the flap reckoned parallel to the plane of the sheet metal strip, penetrate into the lightweight concrete slabs 1 adjoining one another, whereby on being driven in, they form grooves 6 which are 'visible on the upper side of the slabs 1.
  • the sheet metal strips are supported by the slabs located on both sides, and it has been found that they can take up considerable stresses in the longitudinal direction of the slabs without the flaps exhibiting a tendency to lose their grip in the edge portions of the slabs.
  • a block with a groove on its underside adapted to the upper edge of thesheet metal strip may be employed as an intermediate part so that the hammer is prevented from crushing the upper edge in particular of the sheet metal strip or damaging it in any other manner.
  • the shape of the sheet metal strips may, of course, be altered without changing their function.
  • the flaps may be made semi-circular for example, and the whole sheet metal strip may have a T-form in cross-section, in which case the Tflanges will cover the edge portions of the slabs in question.
  • the manufacture of the sheet metal strips may naturally be carried out in different ways and justify alterations regarding their shape. If so desired, the sheet metal strips may also be further secured in the joints by means of nails or the like driven in obliquely.
  • the sheet metal strips may be so designed and arranged, as shown in the drawing, that the stamped-out flaps or wings are integral with the strip on each side of the crossing end joint 3 at that vertical edge of the opening left in the strip which is remote from the end joint 3.
  • the flaps are stamped out so as to be hinged on the far side of each opening reckoned from the end joint 3.
  • a beam and a plurality of preformed substantially rectangular concrete slabs supported thereon said slabs being positioned in coplanar relation with the edges thereof contiguous, said slabs being disposed in longitudinal and transverse rows, the joints between said slabs being continuous, both longitudinally and transversely thereof, said slabs having respective corners meeting at a common point over said beam, an elongated metal connecting strip disposed within the longitudinal joint betwen the longitudinal edges of said slabs and extending across said beam and between the slab edges, said connecting strip having flaps engaging within the body of all adjacent slabs thereby preventing longitudinal movement of said slabs with respect to each other and transmitting stresses from one slab to the other.
  • a roof structure as set forth in claim 1 in which the body of said strip is continuous and unperforated at the upper and lower edges so as to have maximum strength, and the upper and lower edges of said strip are positioned in the joints betwen adjacent slabs so as to be exposed from both the upper portion and the lower portion of the roof structure.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Building Environments (AREA)
US479589A 1954-01-13 1955-01-03 Interconnected lightweight floor slabs Expired - Lifetime US2906113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE764407X 1954-01-13

Publications (1)

Publication Number Publication Date
US2906113A true US2906113A (en) 1959-09-29

Family

ID=20329961

Family Applications (1)

Application Number Title Priority Date Filing Date
US479589A Expired - Lifetime US2906113A (en) 1954-01-13 1955-01-03 Interconnected lightweight floor slabs

Country Status (5)

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US (1) US2906113A (enrdf_load_html_response)
BE (1) BE534747A (enrdf_load_html_response)
FR (1) FR1117375A (enrdf_load_html_response)
GB (1) GB764407A (enrdf_load_html_response)
LU (1) LU33302A1 (enrdf_load_html_response)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226900A (en) * 1961-12-28 1966-01-04 Blomqvist John Harry Spaced wall and facing panels with two piece securing means
US3378982A (en) * 1966-07-06 1968-04-23 Leon P. Lanctot Masonry wall reinforcing and spacing strip
US3686809A (en) * 1970-01-30 1972-08-29 Skuli Walter Lindal Reinforced wood floor sections
US20160251854A1 (en) * 2013-10-21 2016-09-01 Skanska Usa Building Inc. Prefabricated rooms, bathrooms and bathroom floors
US10150138B1 (en) * 2017-05-16 2018-12-11 Roger Thomas Haag Interface for inserting bonding material between the joins of two interlocking members

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584758A1 (fr) * 1985-07-12 1987-01-16 Girard Michel Profile metallique pour element prefabrique en beton a ossature de bois et procede d'utilisation
DE3714537A1 (de) * 1987-04-30 1988-11-17 Sell Rudolf Verbindungselement fuer bauteile aus gasbeton

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US951150A (en) * 1909-02-01 1910-03-08 Silas Bent Russell Reinforcing unit for concrete.
CH46931A (de) * 1908-12-14 1910-05-02 Max Rueping Klammer zur Verhinderung des Reißens der Nutzhölzer beim Schwinden
US1371857A (en) * 1919-11-15 1921-03-15 Traitel Marble Co Pattern and guide strip
US1863734A (en) * 1931-04-14 1932-06-21 Frederick M Venzie Building structure
US2257001A (en) * 1937-12-31 1941-09-23 American Cyanamid & Chem Corp Building unit and construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH46931A (de) * 1908-12-14 1910-05-02 Max Rueping Klammer zur Verhinderung des Reißens der Nutzhölzer beim Schwinden
US951150A (en) * 1909-02-01 1910-03-08 Silas Bent Russell Reinforcing unit for concrete.
US1371857A (en) * 1919-11-15 1921-03-15 Traitel Marble Co Pattern and guide strip
US1863734A (en) * 1931-04-14 1932-06-21 Frederick M Venzie Building structure
US2257001A (en) * 1937-12-31 1941-09-23 American Cyanamid & Chem Corp Building unit and construction

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226900A (en) * 1961-12-28 1966-01-04 Blomqvist John Harry Spaced wall and facing panels with two piece securing means
US3378982A (en) * 1966-07-06 1968-04-23 Leon P. Lanctot Masonry wall reinforcing and spacing strip
US3686809A (en) * 1970-01-30 1972-08-29 Skuli Walter Lindal Reinforced wood floor sections
US20160251854A1 (en) * 2013-10-21 2016-09-01 Skanska Usa Building Inc. Prefabricated rooms, bathrooms and bathroom floors
US10150138B1 (en) * 2017-05-16 2018-12-11 Roger Thomas Haag Interface for inserting bonding material between the joins of two interlocking members

Also Published As

Publication number Publication date
FR1117375A (fr) 1956-05-22
LU33302A1 (enrdf_load_html_response)
BE534747A (enrdf_load_html_response)
GB764407A (en) 1956-12-28

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