WO2007028652A1 - Corps d'armature realise en plastique renforce par fibres - Google Patents

Corps d'armature realise en plastique renforce par fibres Download PDF

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Publication number
WO2007028652A1
WO2007028652A1 PCT/EP2006/008830 EP2006008830W WO2007028652A1 WO 2007028652 A1 WO2007028652 A1 WO 2007028652A1 EP 2006008830 W EP2006008830 W EP 2006008830W WO 2007028652 A1 WO2007028652 A1 WO 2007028652A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcing
body according
reinforcing body
fibers
rods
Prior art date
Application number
PCT/EP2006/008830
Other languages
German (de)
English (en)
Inventor
Kenichi Tsukamoto
Original Assignee
Beltec Industrietechnik Gmbh
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 to AT06791978T priority Critical patent/ATE463631T1/de
Priority to CA2619816A priority patent/CA2619816C/fr
Priority to JP2008529562A priority patent/JP4796143B2/ja
Priority to PL06791978T priority patent/PL1924751T3/pl
Application filed by Beltec Industrietechnik Gmbh filed Critical Beltec Industrietechnik Gmbh
Priority to US12/066,135 priority patent/US20090145074A1/en
Priority to KR1020087005881A priority patent/KR101327118B1/ko
Priority to NZ566212A priority patent/NZ566212A/en
Priority to DE502006006652T priority patent/DE502006006652D1/de
Priority to EP06791978A priority patent/EP1924751B1/fr
Priority to CN2006800330984A priority patent/CN101263270B/zh
Priority to BRPI0615640-1A priority patent/BRPI0615640A2/pt
Priority to AU2006289279A priority patent/AU2006289279B2/en
Publication of WO2007028652A1 publication Critical patent/WO2007028652A1/fr
Priority to NO20080949A priority patent/NO20080949L/no
Priority to IL190035A priority patent/IL190035A0/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • 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
    • E04C5/04—Mats
    • 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
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions

Definitions

  • Reinforcement body made of fiber-reinforced plastic
  • the present invention relates to a reinforcing body for buildings, preferably for structures made of concrete materials or other hydraulically setting materials, which may in particular be mixed with other materials, such as soil materials, according to the preamble of claim 1. It comprises several by connecting means at joints with each other connected and each made of fiber reinforced plastic reinforcing rods.
  • the individual reinforcing rods can have any lengths and cross-sectional shapes as well as arbitrarily shaped end regions.
  • the reinforcing rods have a round, in particular at least approximately circular cross-section and an at least substantially rectilinear longitudinal alignment.
  • reinforcing bodies are well known. They are used to increase the mechanical strength, in particular to increase the tensile strength of concrete structures. Concrete is a major component of many structures, such as buildings or bridges. However, in order to be able to withstand the loads occurring during use, reinforcing struts that transmit tensile forces, in particular, must be embedded in the concrete as reinforcement or reinforcement. Reinforcing bars or reinforcing bodies made of steel have proved to be suitable reinforcement of concrete structures over many years. Steel reinforcements, however, can corrode in situations where conditions of use are particularly severe, especially in humid or chemically aggressive environments.
  • the corrosion of the steel reinforcement leads to a reduction of the adhesion forces or to a deterioration of the bedding between steel and concrete, which results in cracks and spalling of the concrete. This not only causes an ugly appearance of the affected buildings, but the corrosion of steel reinforcements can eventually lead to weakening and ultimately even to the final collapse of the building, which is a major threat. As a result of the corrosion-related damage to the structures, repair and maintenance costs are significantly increased to avoid further dangers.
  • Fiber-reinforced plastics are fiber composites in which the plastics are combined with fibers made of a different material in order to obtain positive synergy effects and improved in the desired direction, in particular mechanically improved properties of the plastic.
  • fibers for example, glass fibers can be used, which are preferably embedded in the plastic in the longitudinal direction of a rod profile with so-called unidirectional fiber orientation.
  • a plurality of parallel oriented fibers which may for example have a diameter of 10 to 30 microns, is thus surrounded by a matrix of plastic resin.
  • the fibers give the composite its high strength in the longitudinal direction, while the resin matrix serves to fix the fibers in their position while protecting them from harmful influences.
  • reinforcing bodies of the type mentioned at the beginning are also known in particular from fiber-reinforced plastics.
  • wires in particular conventional so-called Rödeldrähte, are often used, which in turn are susceptible to corrosion and can lead to the problems mentioned.
  • these wire connections represent only a temporary transport and mounting backup, whereas they can no longer make a significant contribution to increasing the tensile, shear and shear forces of the concrete body after curing of the concrete.
  • Such reinforcing bodies with reinforcing bars connected by wire are known, for example, from document WO 01/26974 A2.
  • a mesh fabric of the type mentioned above which can also be used as a reinforcing body in which the connecting means comprise a warp yarn woven into a plastic matrix as a joining fiber is.
  • the connecting fibers in this leno fabric are very little curved according to a very low weft bending index of at most 0.03, so that they are almost straight, substantially parallel to a reinforcing bar and at the junctions on the transverse reinforcing bars only from one side across a very limited peripheral area.
  • This type of interweaving or entanglement can therefore also only lead to a reinforcing body, which only has a relatively low strength and thus can not cause optimal support of a concrete structure.
  • Object of the present invention is therefore to provide a structurally simple reinforcing body of the type mentioned, in which the individual reinforcing bars in a simple and efficient manner are joined together, so that a very high strength and at the same time a cost-effective production is made possible.
  • the main advantage lies in the fact that in a surprisingly simple manner, a high-strength, in particular immovable or positionally stable connection of the individual reinforcing bars is obtained with each other, which can be produced with relatively low manufacturing complexity and therefore at low cost.
  • the reinforcing bars are connected to each other at the junctions by the multiple wrapping and subsequent curing particularly strong, so that a high-strength reinforcing body is obtained, which ensures an optimal increase in the mechanical strength of a concrete structure provided therewith. Already at each connection point extremely high connection forces are achieved.
  • connection of the reinforcing bars with each other is considerably stronger than is possible with the use of cable ties or wires.
  • the connecting means used according to the invention are again provided by fiber-reinforced reinforced plastic formed, which may have connecting fibers of any kind, any length, any diameter and any arrangement.
  • the connecting fibers are wound in different directions or in different orientations about one connection point.
  • the connecting fibers are wound around the intersection at a cross-shaped joint both 45 ° to the left and 45 ° to the right. In this way, a particularly stable connection is obtained.
  • the connecting fibers on a reinforcing bar or on both reinforcing bars cross each other at one point or at two points.
  • the strength of the connection can be increased again.
  • connection strength S is achieved, satisfying the formula S> 0.3 * A s * RB, where As is the cross-sectional area of the second reinforcing bar and R 8 is the permissible service voltage of the second reinforcing bar.
  • the connecting fibers may also be used, for example silicon carbide fibers or boron fibers.
  • the connecting fibers only comprise fibers of the same kind.
  • the connecting fibers and / or the plastic of the plastic matrix at the connecting points in each case consist of the same material as the fibers or the plastic in the reinforcing rods.
  • the production engineering effort can be kept particularly low.
  • the reinforcing bars have an outside surface profiling, which may preferably be formed in the form of ribs or a screw or a thread.
  • the reinforcing bars can also uneven profilings, such as roughened surfaces by embedded in resin sand grains in the form of a breading be provided in order to increase the composite forces or to improve the bedding.
  • the connecting means can be attached particularly easily.
  • the reinforcing bars can also be arranged in any other orientations and / or at different angles.
  • the reinforcing rods are arranged at least substantially two-dimensionally in the form of a mat.
  • the individual reinforcing bars can lie one above the other in two planes and thus form a grid which is in particular rectangular.
  • the reinforcing body according to the invention can be used in the desired size particularly well in flat building elements, for example in ceilings or walls. It is particularly advantageous in this case that all the reinforcing bars can be rectilinearly stretched, with a first group of reinforcing bars extending flat in a first plane and a second group of reinforcing bars also extending flat in a second plane parallel to the first plane runs. A deformation of individual reinforcing bars is not required, so that even fully hardened reinforcing bars can be particularly easily, quickly and connected to one another with the desired high strength.
  • the reinforcing bars may also form a three-dimensional reinforcing body, in particular a reinforcing cage, a reinforcing pole or a trellis or in particular three-belt or administratgurtigen lattice girder.
  • additional stiffening rods can be provided, which extend at an angle oblique to the preferably rectangularly arranged reinforcing bars.
  • a particularly versatile replaceability of the reinforcing body according to the invention can be achieved in that at least individual reinforcing bars are executed in sections or completely bent. In this case, the bends can also be designed so narrow or with such a small bending radius that the thus partially bent reinforcing bars are quasi angled.
  • a plurality of reinforcing bars are formed completely bent into a circle, which are connected inside and / or outside with a plurality of preferably at a right angle thereto and at least approximately rectilinearly extending reinforcing bars are connected to a tubular reinforcing body, for example, used as a pile reinforcement can be.
  • a tubular reinforcing body for example, used as a pile reinforcement
  • a plurality of reinforcing bars are only bent angularly in sections and formed in the shape of a quadrilateral, in particular a rectangle, the inside and / or outside with a plurality of preferably at a right angle thereto arranged and at least approximately rectilinearly extending reinforcing bars to a cuboid reinforcing body are connected.
  • the reinforcing bodies are factory-prefabricated such that the plastic matrix is completely cured with the connecting fibers embedded therein.
  • the reinforcing bodies according to the invention come in a completely rigid state to the construction site where they are integrated into the structure or in the concrete.
  • the connections of the reinforcing bars are carried out with pincer-like devices by machine, which are arranged in large numbers, preferably in a common production area and at the same time produce a correspondingly large number, preferably alltechnischwicklitch a reinforcing body.
  • the reinforcing bodies may also be designed as a prepreg, the plastic matrix having the connecting fibers embedded therein being pre-cured only to a certain extent in such a way that a certain, relatively low mobility is still present in the connecting points, the plastic matrix is completely curable by supplying heat at a later time.
  • prepregs are known per se.
  • a significant advantage consists in the fact that the reinforcing body is particularly flexible and still can be formed according to the current requirements at the site and then finally fixed by brief heating.
  • FIG. 1 a plan view of a first reinforcement body according to the invention
  • FIG. 2 an enlarged view of a sectional view along the section line A-A in FIG. 1;
  • FIG. 3 shows a plan view of a variant of a second reinforcing body according to the invention
  • FIG. 4 shows a three-dimensional view of a third reinforcing body according to the invention.
  • FIG. 5 three-dimensional view of a fourth reinforcing body according to the invention.
  • the reinforcing body 1 shown in Figures 1 and 2 consists of four individual, each rectilinearly extending reinforcing bars 2a and 2b, which are arranged at right angles to each other in the manner of a double cross.
  • the two reinforcing bars 2a are parallel to each other in a first plane 3a and the other two reinforcing bars 2b are also arranged parallel to each other in a second plane 3b on the reinforcing bars 2a.
  • the reinforcing body 1 similar to Figure 3 also include a much larger number of reinforcing bars 2a and 2b, so that the figure 1 would then represent only a section of the entire reinforcing body 1.
  • the rebars 2a and 2b which are designed as so-called FRP rebars, each consist of fiber-reinforced plastic, in which case glass fibers are embedded in a proportion of about 60% to 85% in a matrix of polyester resin.
  • aramid fibers or carbon fibers may as well be embedded in a matrix of epoxy resin or vinyl ester resin.
  • the reinforcing rods 2a and 2b formed with a substantially circular cross-section here here all have the same length and the same diameter, which may preferably be in the range of 5 mm to 25 mm, but also above.
  • the surfaces of the Bewehungsstäbe 2a and 2b are profiled by a light thread structure.
  • the wandering rods 2a and 2b can also have different diameters and / or different lengths or shapes.
  • the four reinforcing bars 2a and 2b are connected to each other at the four connection points 4 by connecting means 5 in pairs.
  • the connecting means 5 each comprise connecting fibers 6, which are embedded in a plastic matrix 7 and wound around the reinforcing bars 2a and 2b several times.
  • the resin 7 is previously applied to the fiber material 6, so that the fibers 6 are wound and applied "wet.” Glass fibers 6 are also surrounded by a matrix 7 of polyester resin in the connection means 5 thus made of fiber-reinforced plastic the connecting means 5 after the complete curing of the resin 7 also act materially.
  • the connecting fibers 6 are here wound on the reinforcing bars 2b at angles of + 45 ° and - 45 ° obliquely to the longitudinal direction of the reinforcing bars 2b.
  • the connecting fibers 6 are guided so that they cross (relative to the plane of the drawing of Figure 2) both in front of and behind the reinforcing bars 2a.
  • the reinforcing body 10 which is likewise essentially two-dimensionally constructed, shown in FIG. 3, consists of eighteen reinforcing bars 2a and 2b arranged at right angles, which are connected to one another in a lattice-like manner as a reinforcing mat at a total of eighty-one connecting points 4. Again, the reinforcing bars 2a are in a first plane 3a, on which the reinforcing bars 2b are arranged in a second plane 3b.
  • the connecting means 5 comprise in each case, as in the example described above, connecting fibers 6 which are embedded in a plastic matrix 7 and are wound around the reinforcing rods 2a and 2b several times.
  • a high-strength connection of individual reinforcing rods 2a, 2b with each other resulting in a stable, lightweight and completely insensitive to corrosion reinforcing body 1, which can be advantageously used in concrete ceilings or concrete walls.
  • the reinforcing body 1 can be used on bridges or buildings, but also in tunneling for reinforcement of concrete or similar building materials.
  • reinforcing bodies 11 and 12 are shown, which have a three-dimensional shape in the form of a tube (FIG. 4) or a cuboid (FIG. 5).
  • the reinforcing body 11 shown in Figure 4 consists of two circularly bent reinforcing bars 2a, which are interconnected by six mutually parallel reinforcing bars 2b, which are each attached to the inner circumference of the circular reinforcing bars 2a at a right angle to the inventive way.
  • the reinforcing body 12 shown in Figure 5 in contrast, consists of two substantially square reinforcing bars 2a, which are interconnected by four mutually parallel reinforcing bars 2b, which in each case inside the four corners of the square reinforcing bars 2a at a right angle also on the inventive way are attached.
  • the connecting means 5 each comprise, at the connecting points 4 around the reinforcing bars 2a and 2b, multiply wound connecting fibers 6 which are embedded in a plastic matrix 7.
  • the resulting highly stable and completely insensitive to corrosion reinforcement body 11 and 12 can be advantageously used as a pile reinforcement.
  • the present invention is not limited to the embodiment shown here.
  • the reinforcing bodies 1, 10, 11 and 12 in particular in number and / or shape and / or size and / or orientation ⁇ er rebars vary.
  • fibers and / or Plastics made of other materials can be used.
  • the connecting fibers 6 can be arranged differently.
  • rebars of different types, in particular different size and / or shape, can be joined together to form a reinforcing body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

L'invention concerne un corps d'armature (1) destiné à des bâtiments, notamment à des bâtiments réalisés en béton, comportant plusieurs tiges d'armature (2a, 2b) connectées par des éléments de connexion (5) dans des zones de connexion (4), réalisées en plastique renforcé par fibres. Les éléments de connexion (5) contiennent des fibres de connexion (6) intégrées dans une matrice en plastique (7) et enroulées plusieurs fois autour des tiges d'armature (2a, 2b) dans les zones de connexion (4).
PCT/EP2006/008830 2005-09-10 2006-09-11 Corps d'armature realise en plastique renforce par fibres WO2007028652A1 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
KR1020087005881A KR101327118B1 (ko) 2005-09-10 2006-09-11 섬유강화 플라스틱으로 만들어진 보강체
JP2008529562A JP4796143B2 (ja) 2005-09-10 2006-09-11 繊維補強プラスチックで作られている補強本体
PL06791978T PL1924751T3 (pl) 2005-09-10 2006-09-11 Korpus zbrojeniowy z tworzywa sztucznego wzmocnionego włóknami
DE502006006652T DE502006006652D1 (de) 2005-09-10 2006-09-11 Bewehrungskörper aus faserverstärktem kunststoff
US12/066,135 US20090145074A1 (en) 2005-09-10 2006-09-11 Reinforcing body made of fiber-reinforced plastic
CA2619816A CA2619816C (fr) 2005-09-10 2006-09-11 Corps d'armature realise en plastique renforce par fibres
NZ566212A NZ566212A (en) 2005-09-10 2006-09-11 Reinforcing body made of fibre-reinforced plastic
AT06791978T ATE463631T1 (de) 2005-09-10 2006-09-11 Bewehrungskörper aus faserverstärktem kunststoff
EP06791978A EP1924751B1 (fr) 2005-09-10 2006-09-11 Corps d'armature realise en plastique renforce par fibres
CN2006800330984A CN101263270B (zh) 2005-09-10 2006-09-11 纤维增强塑料制成的增强体
BRPI0615640-1A BRPI0615640A2 (pt) 2005-09-10 2006-09-11 corpo de armadura de material sintético reforçado com fibras
AU2006289279A AU2006289279B2 (en) 2005-09-10 2006-09-11 Reinforcing body made of fibre-reinforced plastic
NO20080949A NO20080949L (no) 2005-09-10 2008-02-26 Armeringslegeme laget av fiberforsterket plast
IL190035A IL190035A0 (en) 2005-09-10 2008-03-09 Reinforcing body made of fibre-reinforced plastic

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005043386.3 2005-09-10
DE102005043386A DE102005043386A1 (de) 2005-09-10 2005-09-10 Bewehrungskörper aus faserverstärktem Kunststoff

Publications (1)

Publication Number Publication Date
WO2007028652A1 true WO2007028652A1 (fr) 2007-03-15

Family

ID=37651058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/008830 WO2007028652A1 (fr) 2005-09-10 2006-09-11 Corps d'armature realise en plastique renforce par fibres

Country Status (18)

Country Link
US (1) US20090145074A1 (fr)
EP (1) EP1924751B1 (fr)
JP (1) JP4796143B2 (fr)
KR (1) KR101327118B1 (fr)
CN (1) CN101263270B (fr)
AT (1) ATE463631T1 (fr)
AU (1) AU2006289279B2 (fr)
BR (1) BRPI0615640A2 (fr)
CA (1) CA2619816C (fr)
DE (2) DE102005043386A1 (fr)
ES (1) ES2344155T3 (fr)
IL (1) IL190035A0 (fr)
NO (1) NO20080949L (fr)
NZ (1) NZ566212A (fr)
PL (1) PL1924751T3 (fr)
RU (1) RU2008113914A (fr)
WO (1) WO2007028652A1 (fr)
ZA (1) ZA200803068B (fr)

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CN106639477B (zh) * 2017-01-22 2018-09-21 武汉大学 一种具有抗震和自愈合性能的内置阻尼梁构件
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CA2619816A1 (fr) 2007-03-15
ZA200803068B (en) 2009-02-25
US20090145074A1 (en) 2009-06-11
NO20080949L (no) 2008-04-09
JP2009508021A (ja) 2009-02-26
AU2006289279A1 (en) 2007-03-15
DE502006006652D1 (de) 2010-05-20
BRPI0615640A2 (pt) 2011-05-24
CN101263270A (zh) 2008-09-10
KR20080036144A (ko) 2008-04-24
AU2006289279B2 (en) 2011-08-04
NZ566212A (en) 2010-04-30
ES2344155T3 (es) 2010-08-19
ATE463631T1 (de) 2010-04-15
EP1924751A1 (fr) 2008-05-28
PL1924751T3 (pl) 2010-09-30
RU2008113914A (ru) 2009-10-20
IL190035A0 (en) 2008-08-07
KR101327118B1 (ko) 2013-11-07
EP1924751B1 (fr) 2010-04-07
CA2619816C (fr) 2013-06-25
JP4796143B2 (ja) 2011-10-19
AU2006289279A2 (en) 2008-04-03
CN101263270B (zh) 2010-12-15
DE102005043386A1 (de) 2007-03-15

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