GB2197006A - Reinforcement member for concrete or plastics - Google Patents

Reinforcement member for concrete or plastics Download PDF

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Publication number
GB2197006A
GB2197006A GB08724925A GB8724925A GB2197006A GB 2197006 A GB2197006 A GB 2197006A GB 08724925 A GB08724925 A GB 08724925A GB 8724925 A GB8724925 A GB 8724925A GB 2197006 A GB2197006 A GB 2197006A
Authority
GB
United Kingdom
Prior art keywords
strip
strips
load bearing
spiral
bearing member
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.)
Withdrawn
Application number
GB08724925A
Other versions
GB8724925D0 (en
Inventor
R R Baines
E A Kemp
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.)
Helix Reinforcements Ltd
Original Assignee
Helix Reinforcements 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
Priority claimed from GB868625665A external-priority patent/GB8625665D0/en
Priority claimed from GB878709886A external-priority patent/GB8709886D0/en
Application filed by Helix Reinforcements Ltd filed Critical Helix Reinforcements Ltd
Publication of GB8724925D0 publication Critical patent/GB8724925D0/en
Publication of GB2197006A publication Critical patent/GB2197006A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/012—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Bridges Or Land Bridges (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A load bearing member comprising a plastics composite material and/or glass reinforced cement having embedded therein at least one spiral reinforcing strip. <IMAGE>

Description

SPECIFICATION Load bearing member This invention relates to a load bearing member and is more particularly although not exclusively concerned with a load bearing member which could be used in construction.
A load bearing member according to the present invention comprises a plastics composite material and/or glass reinforced cement having embedded therein at least one spiral reinforcing strip.
The spiral strip is preferably of stainless steel, although any other material may be used.
The spiral strip is preferalby formed from a flat strip of metal which is then twisted so as to form a spiral. The spiral strip or strips may run the whole length of the member or only part of the length. Preferably there are two or more arranged parallel to and spaced apart from one another. To give added support in some circumstances a further strip or strips may be arranged at one or more angles to the strip or strips running along the member.
According to another aspect of the present invention is a method of making a load bearing member as set forth which includes the steps of placing one or more spiral strips of reinforcing material in a mould and subsequently adding the plastics composite material and/or glass reinforced cement and any other required reinforcing material.
The invention may be performed in various ways and one specific embodiment with some modifications will now be described by way of example with reference to the accompanying drawings in which; Figure 1 is a front elevation of a spiral strip for use with the present invention.
Figure 2 is a cross-section of the line 11-11 of Fig. 1.
Figure 3 is a somewhat diagrammatic representation of a load bearing member incorporating the spiral strip shown in Figs. 1 and 2 and Figures 4 and 5 are cross-sections showing alternative arrangements of spiral strips within a load bearing member.
In the arrangement shown in Fig. 1 the strip is formed from a flat strip of metal by twisting it to obtain the spiral form shown. The strip is preferably of stainless steel and either 304 stainless steel or 316 stainless steel. The strip may be however formed from any other suitable material to give it the necessary strength.
In Fig. 3 a spiral strip as shown in Figs. 1 and 2 is incorporated into the centre of a load bearing member, the spiral strip being embedded in the centre.
The strip indicated by the reference numeral 10 in Figs. 1, 2 and 3 may either be used singly or in varying numbers according to the strength and width required. For example Fig.
4 shows three such spiral strips 11, 12 and 13 arranged spaced from one another and running parallel to one another, and Fig. 5 shows an arrangement wth five such strips 15, 16, 17, 18 and 19.
The strips may be embedded throughout the length of the member as shown in these figures, or alternatively may only extend over part of the length of the member. Other strips (not shown) may also be incorporated and arranged at an angle or angles as the strips shown to give added strength in other directions.
The plastics composite material and/or glass reinforced cement may be additionally reinforced with other material, for example glass fibre or high technology plastics material to provide additional stiffness.
The invention is particularly suitable for load bearing members such as lintels as it is compact, lightweight and of high strength.
1. A load bearing member comprising a plastics composite material and/or glass reinforced cement having embedded therein at least one spiral reinforcing strip.
2. A load bearing member as claimed in Claim 1 in which the strip is formed from a flat strip of metal which is then twisted so as to form a spiral.
3. A load bearing member as claimed in Claim 1 or Claim 2 in which two or more strips are provided, and the strip or strips running the whole length of the member or only over a part of the length.
4. A load bearing member as claimed in Claim 3 in which there are two or more strips running parallel to one another.
5. A load bearing member as claimed in Claim 4 in which the strips are spaced apart from one another.
6. A load bearing member as claimed in Claim 4 or Claim 5 in which a further strip or strips are arranged at one or more angles to the strip or strips running along the length of the member.
7. A load bearing member substantially as described herein with reference to and as shown in the accompanying drawings.
8. A method of making a load bearing member as claimed in any one on the preceding claims including the steps of placing one or more spiral strips of reinforcing material in a mould and subsequently adding the plastics composite material and/or glass reinforced cement and any further required reinforcing material.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Load bearing member This invention relates to a load bearing member and is more particularly although not exclusively concerned with a load bearing member which could be used in construction. A load bearing member according to the present invention comprises a plastics composite material and/or glass reinforced cement having embedded therein at least one spiral reinforcing strip. The spiral strip is preferably of stainless steel, although any other material may be used. The spiral strip is preferalby formed from a flat strip of metal which is then twisted so as to form a spiral. The spiral strip or strips may run the whole length of the member or only part of the length. Preferably there are two or more arranged parallel to and spaced apart from one another. To give added support in some circumstances a further strip or strips may be arranged at one or more angles to the strip or strips running along the member. According to another aspect of the present invention is a method of making a load bearing member as set forth which includes the steps of placing one or more spiral strips of reinforcing material in a mould and subsequently adding the plastics composite material and/or glass reinforced cement and any other required reinforcing material. The invention may be performed in various ways and one specific embodiment with some modifications will now be described by way of example with reference to the accompanying drawings in which; Figure 1 is a front elevation of a spiral strip for use with the present invention. Figure 2 is a cross-section of the line 11-11 of Fig. 1. Figure 3 is a somewhat diagrammatic representation of a load bearing member incorporating the spiral strip shown in Figs. 1 and 2 and Figures 4 and 5 are cross-sections showing alternative arrangements of spiral strips within a load bearing member. In the arrangement shown in Fig. 1 the strip is formed from a flat strip of metal by twisting it to obtain the spiral form shown. The strip is preferably of stainless steel and either 304 stainless steel or 316 stainless steel. The strip may be however formed from any other suitable material to give it the necessary strength. In Fig. 3 a spiral strip as shown in Figs. 1 and 2 is incorporated into the centre of a load bearing member, the spiral strip being embedded in the centre. The strip indicated by the reference numeral 10 in Figs. 1, 2 and 3 may either be used singly or in varying numbers according to the strength and width required. For example Fig. 4 shows three such spiral strips 11, 12 and 13 arranged spaced from one another and running parallel to one another, and Fig. 5 shows an arrangement wth five such strips 15, 16, 17, 18 and 19. The strips may be embedded throughout the length of the member as shown in these figures, or alternatively may only extend over part of the length of the member. Other strips (not shown) may also be incorporated and arranged at an angle or angles as the strips shown to give added strength in other directions. The plastics composite material and/or glass reinforced cement may be additionally reinforced with other material, for example glass fibre or high technology plastics material to provide additional stiffness. The invention is particularly suitable for load bearing members such as lintels as it is compact, lightweight and of high strength. CLAIMS
1. A load bearing member comprising a plastics composite material and/or glass reinforced cement having embedded therein at least one spiral reinforcing strip.
2. A load bearing member as claimed in Claim 1 in which the strip is formed from a flat strip of metal which is then twisted so as to form a spiral.
3. A load bearing member as claimed in Claim 1 or Claim 2 in which two or more strips are provided, and the strip or strips running the whole length of the member or only over a part of the length.
4. A load bearing member as claimed in Claim 3 in which there are two or more strips running parallel to one another.
5. A load bearing member as claimed in Claim 4 in which the strips are spaced apart from one another.
6. A load bearing member as claimed in Claim 4 or Claim 5 in which a further strip or strips are arranged at one or more angles to the strip or strips running along the length of the member.
7. A load bearing member substantially as described herein with reference to and as shown in the accompanying drawings.
8. A method of making a load bearing member as claimed in any one on the preceding claims including the steps of placing one or more spiral strips of reinforcing material in a mould and subsequently adding the plastics composite material and/or glass reinforced cement and any further required reinforcing material.
GB08724925A 1986-10-27 1987-10-23 Reinforcement member for concrete or plastics Withdrawn GB2197006A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868625665A GB8625665D0 (en) 1986-10-27 1986-10-27 Load bearing member
GB878709886A GB8709886D0 (en) 1987-04-27 1987-04-27 Load bearing member

Publications (2)

Publication Number Publication Date
GB8724925D0 GB8724925D0 (en) 1987-11-25
GB2197006A true GB2197006A (en) 1988-05-11

Family

ID=26291457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08724925A Withdrawn GB2197006A (en) 1986-10-27 1987-10-23 Reinforcement member for concrete or plastics

Country Status (1)

Country Link
GB (1) GB2197006A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002006607A1 (en) * 2000-07-13 2002-01-24 Atlantic Fiber Technologies Limited Three-dimensional twisted fibers and processes for making same
CN103255835A (en) * 2012-10-23 2013-08-21 叶治豪 Quake-proof energy-saving concrete structure
WO2014039176A1 (en) * 2012-09-06 2014-03-13 Wright Chester Reinforcement for reinforced concrete and methods for manufacturing thereof
CN106113253A (en) * 2016-06-30 2016-11-16 何相华 A kind of manufacture method of the dual prestressed reinforced concrete of tension-torsion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261739A (en) * 1925-11-18 1927-01-20 Ernst Hoffmann Improvements in and relating to reinforcing irons for reinforced concrete structures
GB611492A (en) * 1946-05-02 1948-10-29 John Lloyd Bannister Improvements in reinforcing bars
GB801280A (en) * 1956-05-11 1958-09-10 Kloeckner Huettenwerk Haspe Ag Improvements in or relating to reinforcing bars for concrete
GB1183215A (en) * 1967-08-29 1970-03-04 Bekaert Pvba Leon Improvements in Reinforced Articles and Reinforcing Elements therefor
GB2160906A (en) * 1984-06-29 1986-01-02 Cheshunt Engineering Limited Spiral building-tie
EP0199348A2 (en) * 1985-04-26 1986-10-29 Societe Nationale De L'amiante Structural rod for reinforcing concrete material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261739A (en) * 1925-11-18 1927-01-20 Ernst Hoffmann Improvements in and relating to reinforcing irons for reinforced concrete structures
GB611492A (en) * 1946-05-02 1948-10-29 John Lloyd Bannister Improvements in reinforcing bars
GB801280A (en) * 1956-05-11 1958-09-10 Kloeckner Huettenwerk Haspe Ag Improvements in or relating to reinforcing bars for concrete
GB1183215A (en) * 1967-08-29 1970-03-04 Bekaert Pvba Leon Improvements in Reinforced Articles and Reinforcing Elements therefor
GB2160906A (en) * 1984-06-29 1986-01-02 Cheshunt Engineering Limited Spiral building-tie
EP0199348A2 (en) * 1985-04-26 1986-10-29 Societe Nationale De L'amiante Structural rod for reinforcing concrete material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002006607A1 (en) * 2000-07-13 2002-01-24 Atlantic Fiber Technologies Limited Three-dimensional twisted fibers and processes for making same
WO2014039176A1 (en) * 2012-09-06 2014-03-13 Wright Chester Reinforcement for reinforced concrete and methods for manufacturing thereof
US8915046B2 (en) 2012-09-06 2014-12-23 Chester Wright, III Reinforcement for reinforced concrete and methods for manufacturing thereof
CN103255835A (en) * 2012-10-23 2013-08-21 叶治豪 Quake-proof energy-saving concrete structure
CN106113253A (en) * 2016-06-30 2016-11-16 何相华 A kind of manufacture method of the dual prestressed reinforced concrete of tension-torsion
CN106113253B (en) * 2016-06-30 2019-07-26 何相华 A kind of manufacturing method of the dual prestressed reinforced concrete of tension-torsion

Also Published As

Publication number Publication date
GB8724925D0 (en) 1987-11-25

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)