FR2356498A1 - Steel-reinforced polyurethane hard foam - used in mfr. of load-bearing building components - Google Patents

Steel-reinforced polyurethane hard foam - used in mfr. of load-bearing building components

Info

Publication number
FR2356498A1
FR2356498A1 FR7720073A FR7720073A FR2356498A1 FR 2356498 A1 FR2356498 A1 FR 2356498A1 FR 7720073 A FR7720073 A FR 7720073A FR 7720073 A FR7720073 A FR 7720073A FR 2356498 A1 FR2356498 A1 FR 2356498A1
Authority
FR
France
Prior art keywords
building components
mfr
load
hard foam
steel
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.)
Granted
Application number
FR7720073A
Other languages
French (fr)
Other versions
FR2356498B1 (en
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.)
Walter Bau AG
Original Assignee
Dyckerhoff and Widmann AG
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 Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Publication of FR2356498A1 publication Critical patent/FR2356498A1/en
Application granted granted Critical
Publication of FR2356498B1 publication Critical patent/FR2356498B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0003—Producing profiled members, e.g. beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0407—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Plastics, pref. polyurethane, hard foam made in a closed mould and contg. steel reinforcements having superficial profiling, e.g. reinforced-concrete armatures, are used for the mfr. of load-bearing building components. The foaming operation proceeds in dependence of generation and transfer of heat. Owing to controlled rapid loss of heat through the mould walls the resulting foam has relatively small cells giving a dense foam with good resistance to shear. This substantially reduces risk of delamination from the embedded reinforcement. Deformation behaviour of the prods. can be closely controlled to ensure that they will withstand stresses arising in building components subjected to static loads.
FR7720073A 1976-06-30 1977-06-30 Steel-reinforced polyurethane hard foam - used in mfr. of load-bearing building components Granted FR2356498A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2629373A DE2629373B2 (en) 1976-06-30 1976-06-30 Composite component made of rigid foam with reinforcing steel inserts

Publications (2)

Publication Number Publication Date
FR2356498A1 true FR2356498A1 (en) 1978-01-27
FR2356498B1 FR2356498B1 (en) 1980-10-10

Family

ID=5981863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720073A Granted FR2356498A1 (en) 1976-06-30 1977-06-30 Steel-reinforced polyurethane hard foam - used in mfr. of load-bearing building components

Country Status (3)

Country Link
AT (1) AT358246B (en)
DE (1) DE2629373B2 (en)
FR (1) FR2356498A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579251A1 (en) * 1985-03-22 1986-09-26 Orluc Michel Destructible frame making it possible to carry out the finishing of the framing of an opening and the anchoring of the woodwork door frame

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903446A (en) * 1988-04-26 1990-02-27 Wesley Staples Prestressed plastic foam structural member
FI85403C (en) * 1989-12-22 1992-04-10 Neste Oy Process for producing a plastic composite beam or pillar with the steel reinforcement
DE4217934A1 (en) * 1992-05-30 1993-12-02 Burkhart Schurig Lightweight reinforced high strength foam filled component - contains grid pattern of flat e.g. steel or plastic strips embedded in the foam close to the surface exposed to tension stresses
DE9318729U1 (en) * 1993-12-07 1994-03-17 Schwerdt Bernhard Reinforced structural elements made of steel and plastic

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965272A1 (en) * 1969-12-29 1971-07-15 Wolff & Mueller Lightweight structural element of varying - density
DE2064200A1 (en) * 1970-12-29 1972-08-24 Neumeister, Gerhard, 3380 Goslar Process for the production of additionally stiffened shell lightweight construction elements
FR2121467A2 (en) * 1971-01-15 1972-08-25 Camus Raymond Building panel - with plastic foam core glass fibre reinforced plastic coating and intermediate non-prestressed metal rods
FR2251437A1 (en) * 1973-11-15 1975-06-13 Roussel Michel Reinforcing elements for flexible foam mouldings - with tubular recesses to trap zones of relatively dense foam

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965272A1 (en) * 1969-12-29 1971-07-15 Wolff & Mueller Lightweight structural element of varying - density
DE2064200A1 (en) * 1970-12-29 1972-08-24 Neumeister, Gerhard, 3380 Goslar Process for the production of additionally stiffened shell lightweight construction elements
FR2121467A2 (en) * 1971-01-15 1972-08-25 Camus Raymond Building panel - with plastic foam core glass fibre reinforced plastic coating and intermediate non-prestressed metal rods
FR2251437A1 (en) * 1973-11-15 1975-06-13 Roussel Michel Reinforcing elements for flexible foam mouldings - with tubular recesses to trap zones of relatively dense foam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579251A1 (en) * 1985-03-22 1986-09-26 Orluc Michel Destructible frame making it possible to carry out the finishing of the framing of an opening and the anchoring of the woodwork door frame

Also Published As

Publication number Publication date
DE2629373A1 (en) 1978-01-12
AT358246B (en) 1980-08-25
ATA462877A (en) 1980-01-15
DE2629373B2 (en) 1980-01-31
FR2356498B1 (en) 1980-10-10

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Legal Events

Date Code Title Description
ST Notification of lapse