NO314002B1 - Flat ribbon lamella for reinforcing building components and method of applying the flat ribbon lamella to a building component - Google Patents
Flat ribbon lamella for reinforcing building components and method of applying the flat ribbon lamella to a building component Download PDFInfo
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- NO314002B1 NO314002B1 NO19994733A NO994733A NO314002B1 NO 314002 B1 NO314002 B1 NO 314002B1 NO 19994733 A NO19994733 A NO 19994733A NO 994733 A NO994733 A NO 994733A NO 314002 B1 NO314002 B1 NO 314002B1
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- Prior art keywords
- lamella
- building part
- flat band
- adhesive
- fibers
- Prior art date
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- 241000446313 Lamella Species 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims description 8
- 230000003014 reinforcing effect Effects 0.000 title abstract description 5
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 18
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 16
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 14
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 239000004567 concrete Substances 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 20
- 230000009477 glass transition Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920000554 ionomer Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920006324 polyoxymethylene Polymers 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004638 Duroplast Substances 0.000 description 1
- 229920000965 Duroplast Polymers 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0225—Increasing or restoring the load-bearing capacity of building construction elements of circular building elements, e.g. by circular bracing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
- E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
- E04G2023/0259—Devices specifically adapted to stress the fiber reinforced plastic elements
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
- Y10T156/103—Encasing or enveloping the configured lamina
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Reinforcement Elements For Buildings (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Reinforced Plastic Materials (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Package Frames And Binding Bands (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Supports For Plants (AREA)
Abstract
Description
Oppfinnelsen vedrører en flatbåndlamell for forsterkning av lastopptagende eller lastoverførende byggedeler, hvilken lamell består av en komposittstruktur av et antall parallelt innrettede, bøyelige eller bøyeslappe bærefibre og en bindemiddelmatrise, som forbinder bærefibrene med hverandre på en skyvefast måte, hvilken lamell ved hjelp av et klebemiddel kan festes med en bredside til overflaten på byggedelen som skal forsterkes. Oppfinnelsen vedrører videre en fremgangsmåte for anbringelse av slike flatbåndlameller på en byggedel. The invention relates to a flat strip lamella for the reinforcement of load-absorbing or load-transmitting building parts, which lamella consists of a composite structure of a number of parallel aligned, flexible or flexible carrier fibers and a binder matrix, which connects the carrier fibers to each other in a sliding-proof manner, which lamella with the help of an adhesive can attached with a wide side to the surface of the building part to be reinforced. The invention further relates to a method for placing such flat strip slats on a building part.
Forsterkningslameller av denne type er eksempelvis kjent fra WO 96/21785. Forsterkningslamellene benyttes der på langstrakte og/eller flate byggedeler. De med en bindemiddelmatrise av en duroplast, særlig epoksyharpiks, utførte forsterkningslameller tillater ingen bøyninger med små bøyeradier, slik at det ikke har vært mulig å tilveiebringe ut over en byggedelkant lagte, bøylelignende forsterkninger. Bøyleformede armeringer kreves eksempelvis for i stålbetongbjelker og stålbetong platebjelker å sikre sammenhengen mellom trykksoner og strekksoner og unngå skyveriss og tverriss. Reinforcement lamellae of this type are known, for example, from WO 96/21785. The reinforcing slats are used there on elongated and/or flat construction parts. The reinforcing lamellae made with a binder matrix of a duroplast, especially epoxy resin, do not allow bending with small bending radii, so that it has not been possible to provide hoop-like reinforcements laid over a building part edge. Hoop-shaped reinforcements are required, for example, in reinforced concrete beams and reinforced concrete slab beams to ensure the connection between pressure zones and tension zones and to avoid shear cracks and transverse cracks.
Med dette utgangspunkt er det en hensikt med oppfinnelsen å tilveiebringe en flatbåndlamell som muliggjør en kantovergripende forsterkning av byggedeler. Nok en hensikt med oppfinnelsen er å tilveiebringe en fremgangsmåte for anbringelse av slike flatbåndlameller på byggedeler. With this as a starting point, it is an aim of the invention to provide a flat band lamella which enables an edge-wide reinforcement of construction parts. Another purpose of the invention is to provide a method for placing such flat strip slats on construction parts.
For oppnåelse av denne hensikt foreslås de i patentkravene 1 såvel som 6 til 10 angitte kjennetegnskombinasjoner. Fordelaktige utforminger og videreutviklinger av oppfinnelsen vil gå frem av de uselvstendige patentkrav. In order to achieve this purpose, the characteristic combinations specified in patent claims 1 as well as 6 to 10 are proposed. Advantageous designs and further developments of the invention will proceed from the independent patent claims.
Til grunn for oppfinnelsen ligger den erkjennelse at flatbåndlamellenes bøyestivhet fremfor alt er avhengig av bindemiddelmatrisen. For å kunne føre flatbåndlameller over bøyde byggedeloverflater og byggedelkanter, foreslås det ifølge oppfinnelsen at bindemiddelmatrisen skal bestå av et termoplastisk kunststoff. Med en lokal temperaturøking kan en slik flatbåndlamell formes og tilpasses overflatekonturen på den byggedel som skal forsterkes. Glassomvandlingspunktet til det anvendte termoplastiske kunststoff skal hensiktsmessig ligge over 100°C, mens flyt-overgangsområdet skal begynne over 160°C, for derved å sikre en pålitelig håndtering. Den lokale oppvarming av flatbåndlamellene kan skje lokalt, eksempelvis ved hjelp av varmluftvifter. The invention is based on the realization that the bending stiffness of the flat strip lamellae is above all dependent on the binder matrix. In order to be able to guide flat strip slats over bent building part surfaces and building part edges, it is proposed according to the invention that the binder matrix should consist of a thermoplastic synthetic material. With a local increase in temperature, such a flat band lamella can be shaped and adapted to the surface contour of the building part to be reinforced. The glass transition point of the thermoplastic plastic used should ideally be above 100°C, while the flow transition area should begin above 160°C, thereby ensuring reliable handling. The local heating of the flat strip slats can take place locally, for example with the help of hot air fans.
Som bindemiddelmatrise er eksempelvis et termoplastisk kunststoff fra gruppen polyolefiner, vinylpolymerer, polyamider, polyester, polyacetaler, polykarbonater og termoplastiske polyuretaner og ionomerer aktuelt. As a binder matrix, for example, a thermoplastic synthetic material from the group of polyolefins, vinyl polymers, polyamides, polyester, polyacetals, polycarbonates and thermoplastic polyurethanes and ionomers is relevant.
Bærefibrene er hensiktsmessig utformet som karbonfibre, som utmerker seg ved at de har en høy elastisitetsmodul. Bærefibrene kan imidlertid også inneholde eller bestå av aramidfibre, glassfibre, polypropylenfibre og lignende. The carrier fibers are appropriately designed as carbon fibers, which are distinguished by having a high modulus of elasticity. However, the carrier fibers can also contain or consist of aramid fibers, glass fibers, polypropylene fibers and the like.
For anbringelse av de nye langstrakte flatbåndlameller på en byggedel som skal forsterkes over en kant, foreslås det ifølge oppfinnelsen at flatbåndlamellen i sitt ut over byggedelkanten forløpende mellomområde oppvarmes til en temperatur over glassomvandlingspunktet til det termoplastiske bindemiddel, i oppvarmet tilstand bøyes i en vinkel svarende til byggedelens kantvinkel, og før eller etter avkjølingen klebes på byggedelen over byggedelkanten ved hjelp av et klebemiddelsjikt. For placing the new elongated flat strip lamellas on a building part that is to be reinforced over an edge, it is proposed according to the invention that the flat strip lamella in its intermediate area extending over the building part edge is heated to a temperature above the glass transition point of the thermoplastic binder, in the heated state bent at an angle corresponding to the building part's edge angle, and before or after cooling, the building part is glued to the building part edge using an adhesive layer.
Anvendelsen ifølge oppfinnelsen av en termoplastisk bindemiddelmatrise muliggjør en legging av flatbåndlamellene i en forspent tilstand på en byggedeloverflate. Flatbånd-lamellene kan med sine ut over byggedeloverflaten ragende frie ender i oppvarmet tilstand strekkes eller bøyes på et spennelement og fikseres der. Spennelementene kan så spennes innbyrdes, slik at flatbåndlamellene kan klebes på byggedeloverflaten i en forspent tilstand. For spenning av spennelementene kan det være anordnet en spennmekanisme som er anordnet i en avstand fra den byggedeloverflate som skal forsterkes. Spennmekanismen kan eventuelt bare påvirke en ende av flatbåndlamellen, dersom den andre enden er fiksert til byggedeloverflaten ved hjelp av et egnet spennelement. The use according to the invention of a thermoplastic binder matrix makes it possible to lay the flat band slats in a pre-tensioned state on a building part surface. The flat band slats, with their free ends protruding above the building part surface, can be stretched or bent on a tension element and fixed there when heated. The clamping elements can then be clamped together, so that the flat strip slats can be glued to the construction part surface in a pre-tensioned state. For tensioning the tensioning elements, a tensioning mechanism can be arranged which is arranged at a distance from the building part surface to be reinforced. The tensioning mechanism may possibly only affect one end of the flat band lamella, if the other end is fixed to the surface of the building part by means of a suitable tensioning element.
Videre gir den nye termoplastiske bindemiddelmatrise ifølge oppfinnelsen en mulighet for å kunne presse flatbåndlamellens frie ender til en bølge- eller sikk-sakkform under innvirkning av trykk og varme. For formsluttende forankring blir de på denne måte tilformede lamellender innført i en med et klebemiddel fylt byggedelutsparing, slik at sikk-sakkområdene fylles med det pastøse klebemiddel og det etter en herding av klebemiddelet dannes en formsluttende forbindelse. Furthermore, the new thermoplastic binder matrix according to the invention provides an opportunity to be able to press the free ends of the flat strip lamella into a wave or zig-zag shape under the influence of pressure and heat. For form-locking anchoring, the slats shaped in this way are introduced into a construction part recess filled with an adhesive, so that the zig-zag areas are filled with the pasty adhesive and, after the adhesive has hardened, a form-locking connection is formed.
Flatbåndlameller med den nye termoplastiske bindemiddelmatrise kan videre benyttes for forsterkning av søyleformede byggedeler. I den forbindelse blir den til en temperatur over bindemiddelmatrisens glassovergangsområde oppvarmede flatbåndlamell spiralviklet på den søyleformede byggedels overflate, hvor det er lagt et flytende reaksjonsklebemiddel, og i oppviklet tilstand foretas det en avkjøling til en bruks-temperatur, med samtidig herding av klebemiddelet For å unngå væskeansamlinger under flatbåndviklingen, er det fordelaktig dersom det holdes en avstand mellom to spiralvindinger med flatbåndlamell. Flat strip slats with the new thermoplastic binder matrix can also be used for strengthening column-shaped construction parts. In this connection, the flat strip lamella, heated to a temperature above the glass transition area of the binder matrix, is spirally wound on the surface of the columnar building part, where a liquid reaction adhesive has been placed, and in the wound state it is cooled to a service temperature, with simultaneous hardening of the adhesive To avoid liquid accumulations during the flat band winding, it is advantageous if a distance is kept between two spiral windings with a flat band lamella.
For å bedre forbindelsen mellom flatbånd-lamellen og det eksempelvis av epoksyharpiks bestående klebemiddel, kan det være fordelaktig dersom flatbånd-lamellen på sin klebemiddelside befris for bindemiddel ved frilegging av bærefiberoverflater, eksempelvis ved at lamellen opprues eller slipepåvirkes. In order to improve the connection between the flat tape lamella and the adhesive consisting, for example, of epoxy resin, it can be advantageous if the flat tape lamella on its adhesive side is freed from binder by exposing carrier fiber surfaces, for example by roughening or sanding the lamella.
Oppfinnelsen skal nå forklares nærmere med henvisning til de skjematiske tegninger, hvor The invention will now be explained in more detail with reference to the schematic drawings, where
Figur la viser et grunnriss av et utsnitt av en forsterkningslamell, Figure la shows a ground plan of a section of a reinforcement lamella,
Figur lb viser et snitt etter snittlinjen B-B i figur la, i større målestokk, Figure lb shows a section along the section line B-B in figure la, on a larger scale,
Figur 2 viser et snitt gjennom en stålbetong-platebjelke med bøyleformet tilbøyet forsterkningslamell, Figur 3 viser en ende av forsterkningslamellen som kan føres inn i den i figur 2 viste byggedel-utsparing, Figur 4 viser en spenninnretning for forspent anbringelse av forsterkningslamellen på en byggedel, og Figur 5 viser et utsnitt av en søyleformet byggedel som er spiralomviklet med en forsterkningslamell. Figure 2 shows a section through a steel-concrete plate beam with a hoop-shaped bent reinforcement lamella, Figure 3 shows an end of the reinforcement lamella that can be inserted into the building part recess shown in Figure 2, Figure 4 shows a clamping device for prestressed placement of the reinforcement lamella on a building part, and Figure 5 shows a section of a column-shaped building part which is spirally wrapped with a reinforcing lamella.
De i tegningsfigurene viste flatbåndlameller 10 er beregnet for etterforsterkning av byggedeler 12, så som stålbetongkonstruksjoner og murverk. De er festet til byggedelens overflate med sin ene bredside 14 ved hjelp av et fortrinnsvis av epoksyharpiks bestående klebemiddel 16. I tillegg er flatbåndlamellens frie ender 32,34 forankret i byggedelen 12 (figur 2). The flat band slats 10 shown in the drawings are intended for post-reinforcement of building parts 12, such as reinforced concrete structures and masonry. They are attached to the surface of the building part with their one broad side 14 using an adhesive 16, preferably consisting of epoxy resin. In addition, the free ends 32,34 of the flat band lamella are anchored in the building part 12 (figure 2).
Byggedelen 12 i figur 2 er eksempelvis utformet som en platebjelke av stålbetong, hvor lamellen 10 er lagt som en bøyle over byggedelens 12 steg 22 og i denne forbindelse er bøyet over stegets 22 hjørnekanter 24. The building part 12 in Figure 2 is, for example, designed as a plate beam of reinforced concrete, where the lamella 10 is placed as a hoop over the step 22 of the building part 12 and in this connection is bent over the corner edges 24 of the step 22.
Flatbåndlamellen 10 har en komposittstruktur, bestående av et antall innbyrdes parallelle, bøyelige eller bøyeslappe bærefibre 26 av karbon og en bindemiddelmatrise 28, som forbinder bærefibrene skyvefast med hverandre og er av et termoplastisk kunststoff. Den termoplastiske bindemiddelmatrise 28 sørger for at flatbåndlamellen er relativt stiv ved brukstemperaturen, men blir plastisk deformerbar ved oppvarming til en temperatur over glassomvandlingspunktet. For å kunne legge den i utgangspunktet langstrakte flatbåndlamell 10 over kantene 24, blir lamellen oppvarmet i mellomområdene 30, til en temperatur over glassomvandlingspunktet for den termoplastiske bindemiddelmatrise. Lamellen blir så bøyd i samsvar med den eventuelt avrundede hjømevinkel, på 90°. Denne bøyning blir igjen i lamellen etter en avkjøling til brukstemperaturen. The flat band lamella 10 has a composite structure, consisting of a number of mutually parallel, flexible or flexible carrier fibers 26 of carbon and a binder matrix 28, which connects the carrier fibers in a sliding manner and is made of a thermoplastic synthetic material. The thermoplastic binder matrix 28 ensures that the flat strip lamella is relatively rigid at the temperature of use, but becomes plastically deformable when heated to a temperature above the glass transition point. In order to be able to lay the initially elongated flat strip lamella 10 over the edges 24, the lamella is heated in the intermediate areas 30, to a temperature above the glass transition point of the thermoplastic binder matrix. The slat is then bent in accordance with the possibly rounded height angle, of 90°. This bending remains in the lamella after cooling to the operating temperature.
I utførelseseksempelet i figur 2 utnyttes også den plastiske deformering under temperaturøkning for forankring av flatbåndlamellens ene ende 32. Den tilbøyde ende 32 er klebet til byggedelen 12 ved hjelp av et klebemiddel 16. I den andre, frie enden 34 har flatbåndlamellen en sikk-sakk-deformering, tilveiebrakt ved hjelp av trykk og varme. Med denne ende 34 føres flatbåndlamellen 10 inn i en med klebemiddel fylt utsparing 35 i byggedelen 10. Når klebemiddelet herder, vil det dannes en formsluttende forankring i denne utsparing. In the design example in Figure 2, the plastic deformation during temperature rise is also used to anchor one end 32 of the flat band lamella. The bent end 32 is glued to the building part 12 by means of an adhesive 16. At the other, free end 34, the flat band lamella has a zig-zag deformation, brought about by pressure and heat. With this end 34, the flat band lamella 10 is guided into an adhesive-filled recess 35 in the building part 10. When the adhesive hardens, a shape-locking anchor will be formed in this recess.
I utførelseseksempelet i figur 4 blir flatbåndlamellens 10 frie ender 36 i oppvarmet, plastisk deformerbar tilstand lagt på trommelformede spennelementer 38 og forankret der. Spennelementene 38 kan ved hjelp av en egnet spennmekanisme skyves fra hverandre som antydet med dobbeltpilen 39, slik at flatbåndlamellen 10 ved påklebingen på byggedelen 12 vil være forspent. Bibeholdes forspenningen mens klebemiddelet 16 herder, oppnås en bedring av forsterkningsvirkningen. In the embodiment in Figure 4, the free ends 36 of the flat strip lamella 10 are placed in a heated, plastically deformable state on drum-shaped clamping elements 38 and anchored there. The tensioning elements 38 can be pushed apart by means of a suitable tensioning mechanism as indicated by the double arrow 39, so that the flat strip lamella 10 will be pre-tensioned when it is attached to the building part 12. If the pretension is maintained while the adhesive 16 hardens, an improvement in the strengthening effect is achieved.
I utførelseseksempelet i figur 5 er en flatbåndlamell 10 spiral viklet på en søyleformet byggedel 12 og er klebet til denne. For å lette omviklingen er flatbåndlamellen brakt til en høyere temperatur, slik at den lettere kan gis spiralformen under omviklingen. In the design example in figure 5, a flat band lamella 10 is spirally wound on a columnar building part 12 and is glued to this. To make wrapping easier, the flat strip lamella has been brought to a higher temperature, so that it can more easily be given the spiral shape during wrapping.
Oppfinnelsen vedrører således en flatbåndlamell 10 for forsterkning av lastopptagende eller lastoverførende byggedeler 12, eksempelvis av betong, tre, stål, natursten eller murverk. Flatbåndlamellen 10 har en komposittstruktur bestående av et antall parallelt innrettede, bøyelige eller bøyeslappe bærefibre 26 og en bindemiddelmatrise 28, som forbinder bærefibrene skyvefast med hverandre. The invention thus relates to a flat strip lamella 10 for strengthening load-absorbing or load-transmitting building parts 12, for example of concrete, wood, steel, natural stone or masonry. The flat band lamella 10 has a composite structure consisting of a number of parallel aligned, flexible or flexible support fibers 26 and a binder matrix 28, which connects the support fibers to each other in a sliding manner.
Lamellen kan festes med sin bredside på overflaten til den byggedel som skal forsterkes, under utnyttelse av et klebemiddel 16. For å kunne bøye flatbåndlamellen over byggedel-kanter, er det ifølge oppfinnelsen foreslått at bindemiddelmatrisen 28 skal bestå av et termoplastisk kunststoff. The lamella can be fixed with its broad side on the surface of the building part to be reinforced, using an adhesive 16. In order to be able to bend the flat strip lamella over building part edges, according to the invention, it is proposed that the binder matrix 28 should consist of a thermoplastic synthetic material.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19733067A DE19733067A1 (en) | 1997-07-31 | 1997-07-31 | Ribbon slat for reinforcing components and method for attaching the ribbon slat to a component |
| PCT/EP1998/004383 WO1999006651A1 (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO994733L NO994733L (en) | 1999-09-29 |
| NO994733D0 NO994733D0 (en) | 1999-09-29 |
| NO314002B1 true NO314002B1 (en) | 2003-01-13 |
Family
ID=7837538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19994733A NO314002B1 (en) | 1997-07-31 | 1999-09-29 | Flat ribbon lamella for reinforcing building components and method of applying the flat ribbon lamella to a building component |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US20020124930A1 (en) |
| EP (1) | EP1000208B1 (en) |
| JP (1) | JP2001512200A (en) |
| KR (1) | KR100417892B1 (en) |
| CN (1) | CN1127603C (en) |
| AT (1) | ATE208852T1 (en) |
| AU (1) | AU738490B2 (en) |
| BR (1) | BR9811578A (en) |
| CA (1) | CA2278650C (en) |
| DE (2) | DE19733067A1 (en) |
| DK (1) | DK1000208T3 (en) |
| ES (1) | ES2166612T3 (en) |
| HK (1) | HK1024039A1 (en) |
| HU (1) | HU223369B1 (en) |
| IL (1) | IL134118A (en) |
| NO (1) | NO314002B1 (en) |
| NZ (1) | NZ336978A (en) |
| PL (1) | PL335439A1 (en) |
| PT (1) | PT1000208E (en) |
| WO (1) | WO1999006651A1 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2397103A1 (en) * | 2000-01-13 | 2001-07-19 | Dow Global Technologies Inc. | Composites of reinforcing fibers and thermoplastic resins as external structural supports |
| DE10032595A1 (en) * | 2000-07-07 | 2002-01-17 | Josef Scherer | Reinforcement for building surfaces |
| US20020170651A1 (en) * | 2001-05-15 | 2002-11-21 | Edwards Christopher M. | Method for reinforcing cementitious structures |
| FI20011069A (en) * | 2001-05-22 | 2002-11-23 | Patenttitoimisto T Poutanen Oy | New drives for wood construction |
| KR100471509B1 (en) * | 2001-06-11 | 2005-03-08 | 고조 힌시츠 호쇼켄큐쇼 가부시키가이샤 | Method, material and construction for reinforcing a structure |
| JPWO2003027416A1 (en) * | 2001-09-25 | 2005-01-06 | 構造品質保証研究所株式会社 | Structure reinforcement structure, reinforcement material, seismic isolation device, and reinforcement method |
| EP1331327A1 (en) | 2002-01-29 | 2003-07-30 | Sika Schweiz AG | Reinforcing device |
| KR20030070251A (en) * | 2002-02-23 | 2003-08-30 | 윤미숙 | Fiber reinforced permeating concrete block and method for manufacturing same |
| JP3903314B2 (en) * | 2002-10-25 | 2007-04-11 | 清水建設株式会社 | Repair and reinforcement method for long wooden members |
| WO2006039755A1 (en) * | 2004-10-12 | 2006-04-20 | The University Of Southern Queensland | A strengthening system |
| KR100894492B1 (en) * | 2008-04-23 | 2009-05-07 | (주)희상리인포스 | Reinforcing method of ferroconcrete using aramid strip members |
| IT1399040B1 (en) * | 2010-01-27 | 2013-04-05 | Fidia Srl | PROCEDURE FOR THE REINFORCEMENT OF STRUCTURAL ELEMENTS |
| CN101929254B (en) * | 2010-09-01 | 2011-09-28 | 中南大学 | Method for lapping and anchoring fiber sheet around rod to reinforce structural component |
| CN102121316B (en) * | 2011-01-12 | 2012-12-12 | 北京交通大学 | Construction method for reinforcing circular structures by pre-tensioned high-strength fiber cloth |
| US9085898B2 (en) * | 2013-03-04 | 2015-07-21 | Fyfe Co. Llc | System and method of reinforcing a column positioned proximate a blocking structure |
| JP6220542B2 (en) * | 2013-04-15 | 2017-10-25 | ファイベックス株式会社 | Fixing structure of tension member |
| AU2014276778B2 (en) * | 2013-06-06 | 2017-10-12 | Sika Technology Ag | Arrangement and method for reinforcing supporting structures |
| ITMI20131316A1 (en) * | 2013-08-02 | 2015-02-03 | Interbau S R L | ANTI-SEISMIC CONNECTION BETWEEN TWO STRUCTURAL ELEMENTS, PARTICULARLY BETWEEN TWO PREFABRICATED STRUCTURAL ELEMENTS, OF THE BEAM-PILLAR TYPE, BEAM-BEAM, BEAM-TILE OR LIKE. |
| CH710538B1 (en) * | 2014-12-18 | 2018-09-28 | Re Fer Ag | Method for creating prestressed structures or components by means of tension elements made of shape memory alloys and building or component equipped therewith. |
| DE102017126447A1 (en) | 2017-11-10 | 2019-05-16 | CHT Germany GmbH | Coating of fiber products with aqueous polymer dispersions |
| CN109457992B (en) * | 2018-10-30 | 2021-10-08 | 兰州大学 | Method for sticking reinforced concrete structure outside body with anchor |
| CN110453621B (en) * | 2019-07-31 | 2021-06-11 | 湖州泰益智能科技有限公司 | Prevent empting road hard shoulder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318901A1 (en) * | 1983-05-25 | 1984-11-29 | Gustav 5140 Erkelenz Stange | Process for reliable fastening of a support attached to an exterior surface of a flat moulding in the region of the surface edges and mould for this |
| DE3843535A1 (en) * | 1988-12-23 | 1990-06-28 | Elastogran Kunststoff Technik | Use of semifinished products of fibre-reinforced plastic for the production of mouldings, in particular bumper brackets |
| ES2122696T3 (en) * | 1995-01-09 | 1998-12-16 | Empa | FASTENING OF REINFORCEMENT SHEETS. |
| DE19634840A1 (en) * | 1995-08-29 | 1997-03-06 | Erhard Vesper | Mfr. of shaped decorative parts for car interiors etc. reducing waste |
-
1997
- 1997-07-31 DE DE19733067A patent/DE19733067A1/en not_active Withdrawn
-
1998
- 1998-07-15 DE DE59802160T patent/DE59802160D1/en not_active Expired - Fee Related
- 1998-07-15 WO PCT/EP1998/004383 patent/WO1999006651A1/en active IP Right Grant
- 1998-07-15 DK DK98941330T patent/DK1000208T3/en active
- 1998-07-15 JP JP2000505383A patent/JP2001512200A/en active Pending
- 1998-07-15 HU HU0004549A patent/HU223369B1/en not_active IP Right Cessation
- 1998-07-15 KR KR10-1999-7007053A patent/KR100417892B1/en not_active IP Right Cessation
- 1998-07-15 CA CA002278650A patent/CA2278650C/en not_active Expired - Lifetime
- 1998-07-15 EP EP98941330A patent/EP1000208B1/en not_active Expired - Lifetime
- 1998-07-15 US US09/341,747 patent/US20020124930A1/en not_active Abandoned
- 1998-07-15 PT PT98941330T patent/PT1000208E/en unknown
- 1998-07-15 AT AT98941330T patent/ATE208852T1/en active
- 1998-07-15 AU AU89752/98A patent/AU738490B2/en not_active Expired
- 1998-07-15 CN CN98803602A patent/CN1127603C/en not_active Expired - Lifetime
- 1998-07-15 NZ NZ336978A patent/NZ336978A/en unknown
- 1998-07-15 IL IL13411898A patent/IL134118A/en not_active IP Right Cessation
- 1998-07-15 BR BR9811578-2A patent/BR9811578A/en not_active IP Right Cessation
- 1998-07-15 PL PL98335439A patent/PL335439A1/en not_active Application Discontinuation
- 1998-07-15 ES ES98941330T patent/ES2166612T3/en not_active Expired - Lifetime
-
1999
- 1999-09-29 NO NO19994733A patent/NO314002B1/en not_active IP Right Cessation
-
2000
- 2000-05-30 HK HK00103203A patent/HK1024039A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES2166612T3 (en) | 2002-04-16 |
| KR20000070791A (en) | 2000-11-25 |
| AU8975298A (en) | 1999-02-22 |
| WO1999006651A1 (en) | 1999-02-11 |
| EP1000208A1 (en) | 2000-05-17 |
| HK1024039A1 (en) | 2000-09-29 |
| CA2278650C (en) | 2003-01-21 |
| IL134118A0 (en) | 2001-04-30 |
| IL134118A (en) | 2003-05-29 |
| KR100417892B1 (en) | 2004-02-11 |
| CA2278650A1 (en) | 1999-02-11 |
| JP2001512200A (en) | 2001-08-21 |
| AU738490B2 (en) | 2001-09-20 |
| EP1000208B1 (en) | 2001-11-14 |
| US20020124930A1 (en) | 2002-09-12 |
| BR9811578A (en) | 2000-08-29 |
| ATE208852T1 (en) | 2001-11-15 |
| NZ336978A (en) | 2001-08-31 |
| HUP0004549A3 (en) | 2002-01-28 |
| HUP0004549A2 (en) | 2001-04-28 |
| DE19733067A1 (en) | 1999-02-04 |
| CN1127603C (en) | 2003-11-12 |
| NO994733L (en) | 1999-09-29 |
| DK1000208T3 (en) | 2002-02-25 |
| PT1000208E (en) | 2002-05-31 |
| CN1251152A (en) | 2000-04-19 |
| NO994733D0 (en) | 1999-09-29 |
| WO1999006651A8 (en) | 1999-08-12 |
| HU223369B1 (en) | 2004-06-28 |
| DE59802160D1 (en) | 2001-12-20 |
| PL335439A1 (en) | 2000-04-25 |
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