US3790746A - Structural element of reinforced concrete - Google Patents

Structural element of reinforced concrete Download PDF

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Publication number
US3790746A
US3790746A US00193281A US19328171A US3790746A US 3790746 A US3790746 A US 3790746A US 00193281 A US00193281 A US 00193281A US 19328171 A US19328171 A US 19328171A US 3790746 A US3790746 A US 3790746A
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US
United States
Prior art keywords
slab
mounting supports
heating conductor
guide members
embedded
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
US00193281A
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English (en)
Inventor
H Krieger
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19707040944 external-priority patent/DE7040944U/de
Priority claimed from DE2138961A external-priority patent/DE2138961A1/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3790746A publication Critical patent/US3790746A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems
    • F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
    • F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
    • F24D13/024—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements in walls, floors, ceilings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present invention relates to structural elements of reinforced concrete, and more particularly to ceiling plates containing electrical heating conductors.
  • mounting supports for a plurality of electrical heating conductors.
  • the mounting supports extend at least partially into, and engage, the concrete of the structural element, and the heating conductors are at least partially covered by the concrete.
  • the heating conductors are affixed to the mounting supports at the time of installation and the mounting supports with the heating conductors are then pressed into, or embedded in, the concrete of the structural element before it is set so that the mounting supports will be fixed on the structural element when the concrete has set and the heating conductors will be completely or partially covered by the concrete which thus protects the same.
  • the mounting supports may be concrete bars, net-like or comb-like structures, or carrier rods.
  • FIGS. 1 and 2 are top views of portions of ceiling slabs with two modifications of heating conductor arrangements
  • FIG. 3 is a cross section of a portion of a ceiling slab in the region of a mounting support carrier rod for the heating conductors;
  • FIG. 4 is a similar cross section in the region of guide members for the heating conductors
  • FIG. 5 is a section along line XIVXIV of FIG. 4.
  • FIG. 6 is a cross section similar to that of FIG. 3 and showing another modification with guide rollers for the heating conductor.
  • a concrete ceiling slab l is shown to have anchored in the concrete, lattice girders 3, such reinforced concrete slabs being entirely conventional. Electrical heating conductor cables 4 are embedded in the concrete.
  • the heating conductor 4 is carried by carrier rods 17 extending parallel to the lattice girders 3 while the major length of the heating conductor extend perpendicularly to the lattice girders.
  • carrier rods 17 extending parallel to the lattice girders 3 while the major length of the heating conductor extend perpendicularly to the lattice girders.
  • the positions of the heating conductor and carrier rods are reversed, i.e., the major length of the heating conductor extends parallel to the lattice girders while the mounting support rods 17 are perpendicular to the girders 3.
  • FIG. 3 illustrates aportion of ceiling slab l to show the details of the mounting.
  • the carrier rods 17a for the heating conductor 4 have a series of notches 20 dimensioned to accommodate the conductor.
  • the lattice girder 3 has two lower chords 19 connected to the upper chord by diagonally extending braces 18, as is conventional, and the carrier rods 17a are affixed to the girder braces in the lower region thereof so that the chords carrying the heating conductors are embedded in the concrete when the lattice girders are anchored thereinto.
  • a matching rod with like notches may be placed over rod 17a to hold the conductors between the two rods.
  • the ends 17b of the carrier rods near the edges of the slab 1 have bores 21 to receive the heating conductor cables 4 and pass them perpendicularly through the carrier rod ends, after which they are guided at right angles to run along the edge of the slab, as illustrated in FIGS. 1 and 2.
  • guide members 22 are attached to the carrier rod ends 17b and project towards the slab edge, the guide members having arcuate guide channels or bores to maintain a minimum bending radius for the heating conductor.
  • a guide member is attached to the carrier rod by means of a helical spring 23 surrounding the heating conductor which is being guided through the arcuate guide channel in the guide member.
  • FIG. 6 shows a modification wherein the guide members 22 are replaced by guide rollers 24 whose stub axles 25 are received in respective bores in the carrier rods 17c for heating conductors 4.
  • a slab of reinforced concrete having opposite edges comprising a flexible heating conductor embedded in the slab, the heating conductor being formed in a plurality of loops and adjacent ones of the loops having bent-over portions at said opposite edges, concrete reinforcing means at the opposite edges, mounting supports affixed to the reinforcing means, embedded in the slab and holding the heating conductor in said loop for mation, and guidemembers affixed to respective ones of the mounting supports at said opposite edges for guiding the bent-over loop portions and for tensioning the heating conductor.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Surface Heating Bodies (AREA)
  • Rectifiers (AREA)
  • General Induction Heating (AREA)
US00193281A 1970-11-05 1971-10-28 Structural element of reinforced concrete Expired - Lifetime US3790746A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19707040944 DE7040944U (de) 1970-11-05 1970-11-05 Betonbauteil insbesondere grossflaechenplatte mit installationsleitungen
DE7116248 1971-04-27
DE2138961A DE2138961A1 (de) 1971-08-04 1971-08-04 Betonplatte mit stahltraegerbewehrungen

Publications (1)

Publication Number Publication Date
US3790746A true US3790746A (en) 1974-02-05

Family

ID=27183610

Family Applications (1)

Application Number Title Priority Date Filing Date
US00193281A Expired - Lifetime US3790746A (en) 1970-11-05 1971-10-28 Structural element of reinforced concrete

Country Status (7)

Country Link
US (1) US3790746A (enrdf_load_stackoverflow)
BE (1) BE774875A (enrdf_load_stackoverflow)
CA (1) CA957004A (enrdf_load_stackoverflow)
CH (1) CH546323A (enrdf_load_stackoverflow)
GB (1) GB1371347A (enrdf_load_stackoverflow)
NL (1) NL7114670A (enrdf_load_stackoverflow)
NO (1) NO133557C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7250570B1 (en) * 2006-01-17 2007-07-31 Flextherm Inc. Heating cable guide strip for electric radiant floor heating and method of use
US20100065548A1 (en) * 2008-09-15 2010-03-18 Michel Morand Heating wire support meshing and method of constructing a heated surface wth same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997568A (en) * 1959-01-19 1961-08-22 Easy Heat Inc Heating structure
US3069522A (en) * 1960-10-07 1962-12-18 Frederick W Jamison Heater element for embedment in a mastic slab

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997568A (en) * 1959-01-19 1961-08-22 Easy Heat Inc Heating structure
US3069522A (en) * 1960-10-07 1962-12-18 Frederick W Jamison Heater element for embedment in a mastic slab

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7250570B1 (en) * 2006-01-17 2007-07-31 Flextherm Inc. Heating cable guide strip for electric radiant floor heating and method of use
US20070193764A1 (en) * 2006-01-17 2007-08-23 Flextherm Inc. Heating cable guide strip for electric radiant floor heating and method of use
US20100065548A1 (en) * 2008-09-15 2010-03-18 Michel Morand Heating wire support meshing and method of constructing a heated surface wth same
US9228749B2 (en) * 2008-09-15 2016-01-05 Flextherm Inc. Heating wire support meshing and method of constructing a heated surface with same

Also Published As

Publication number Publication date
NO133557B (enrdf_load_stackoverflow) 1976-02-09
CH546323A (de) 1974-02-28
GB1371347A (en) 1974-10-23
NO133557C (enrdf_load_stackoverflow) 1976-05-19
CA957004A (en) 1974-10-29
BE774875A (fr) 1972-03-01
NL7114670A (enrdf_load_stackoverflow) 1972-05-09

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