EP1507051A1 - Krafteinleitungselement - Google Patents
Krafteinleitungselement Download PDFInfo
- Publication number
- EP1507051A1 EP1507051A1 EP03018365A EP03018365A EP1507051A1 EP 1507051 A1 EP1507051 A1 EP 1507051A1 EP 03018365 A EP03018365 A EP 03018365A EP 03018365 A EP03018365 A EP 03018365A EP 1507051 A1 EP1507051 A1 EP 1507051A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- force introduction
- introduction element
- composite material
- pressure
- bow
- 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- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims description 39
- 238000004873 anchoring Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract 4
- 239000000835 fiber Substances 0.000 description 5
- 241000446313 Lamella Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- -1 For example Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/127—The tensile members being made of fiber reinforced plastics
-
- 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
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members prestressed
-
- 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
-
- 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
-
- 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
- E04G2023/0262—Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off
Definitions
- the invention is based on a force introduction element for anchoring a band-shaped composite plastic according to the preamble of the first Claim.
- the invention also relates to a method for attaching a force introduction element to a support structure and the use of a force introduction element for reinforcing a supporting structure.
- the force introduction element for anchoring a band-shaped composite material used on a support structure, with the the composite material with pressure plates with the help of evenly distributed Pressure elements or by acting on the entire contact surface hydraulic pressure chamber supported against a bow-shaped yoke supported becomes. With these pressure plates is a power transmission from the Support structure on the composite material.
- the force introduction element may preferably represent a clamping head.
- the advantages of the invention are, inter alia, that the Force application element according to the invention a uniform contact pressure the pressure plates on the composite material with the help of evenly distributed Pressure elements or by acting on the entire contact surface hydraulic pressure chamber supported against a bow-shaped yoke which guarantees a desired pulling force in the range of 200 and 300 kN.
- This uniform contact force allows the use of a composite material regardless of its width. Because the bow-shaped yoke and the pressure plates can be made as slim and flat as possible, Interference with the supporting structure can be kept to a minimum.
- FIGS. 1, 1a, 1b, 1c show a force introduction element 1.
- the force introduction element 1 is connected via a cross-beam 2a and means at least one threaded rod 9 in an anchoring tube, not shown or Schubdorn held, which in a wellbore in a support structure 10 is attached.
- the threaded rod 9 is laterally on the force introduction element 1, said threaded rod 9 through the cross-beam 2a and a bow-shaped yoke 2b is performed.
- the cross-beam 2a is mechanically connected to the bow-shaped yoke 2b and may be in one piece be educated.
- the composite material 5 is first with the help of a tensile press, which is temporarily arranged at the end of the composite material 5, in the Pulling tensioned 11, and then this clamping force by turning a Thread 8 on the cross-beam 2a in the threaded rod. 9 initiated.
- the force introduction element 1 comprises two pressure plates 3, the one uniform contact force exerts on the composite material 5.
- the pressure plates 3 a special surface having, e.g. by mechanical roughening with loops or achieved by a chemical pretreatment or use of an adhesive is to the adhesion of the pressure plate 3 and the composite material. 5 to improve.
- the printing elements 4a are arranged to be and have an optimal geometric arrangement.
- the distance of individual pressure elements 4a is preferably greater than 20 mm, in particular in a range of 30 to 40 mm and the distance of the printing elements 4a from the side of the plate edges, preferably greater than 10 mm, in particular in a range of 10 to 30 mm.
- the number and size of the printing elements 4a depends on the required contact pressure. They are only subjected to pressure and do not need to be dimensioned for shear forces.
- the expected Failure load ranges between 200 and 300 kN.
- In the figure 1 are preferably four printing elements 4a shown, which supported by the Press bow-shaped yoke 2b onto the pressure plates 3.
- the thickness of the pressure plates 3 is depending on the slat width and thickness between 0.5 to 1.5 cm. This leads to a slim and flat force introduction element 1, which limits the engagement in the support structure 10 to a minimum.
- FIG. 1b shows the stresses occurring in this clamping process shown qualitatively in a voltage diagram 12, where x is the Path along the force introduction element 1 and y represents the force at location x. Since the cross-beam 2a is not bonded to the composite material 5, are the stresses at the transition from the cross-beam 2a to the pressure plates 3 highest and go to zero to the end of the pressure plate 3 of the force introduction element. 1
- the transverse cross member 2 a can be attached to the composite material 5 are glued by a bond 14, resulting in a shift the location of the highest voltage peaks on the front side of the cross-beam 2a leads as shown in the voltage diagram 12 qualitatively.
- the composite material 5 can be configured in the form of a lamella be composed of fibers and a synthetic resin.
- the fiber can be in one Direction i. be formed unidirectionally or additionally fibers in others Directions, in particular an angle plus 45 ° and minus 45 °, to the unidirectional Main fiber direction be constructed.
- the fibers may preferably made of aramid, carbon, glass, etc., which are embedded in a synthetic resin.
- the synthetic resin may be a duromer such as e.g. Epoxy, acrylates or a thermoplastic Material, such as Polyamide, epoxy, acrylates.
- the surface of the composite material 5 is preferably specially embossed, e.g. roughened by grinding or pretreated with an adhesive or with a pretreatment system, such as. Treated primer, plasma, etc.
- FIG. 2 shows a second embodiment is shown, in which the transverse cross member 2a at a substantially arbitrary position on the bow-shaped Yoke 2b is arranged.
- the voltage spikes that occur are in the Voltage diagram 12 shown schematically.
- At the cross-beam 2a occurs a constant stress, since they are not compatible with the composite material. 5 connected is.
- FIG. 2 a shows a further embodiment of the force introduction element 1, which here consists of two halves in the direction of the composite material 5 consists.
- gluing 14 is the pressure plate and the cross-beam connected to the composite material 5, whereby in the field of Cross-Traverse 2a voltages are also reduced.
- the figure 3, 3a, 3b shows a force introduction element 13, wherein the Power transmission to the pressure plates 3 a hydraulically acting pressure chamber 4b is used.
- the pressure chamber 4b is closed between at least one pressure plate 3 and a bow-shaped yoke 2b and acts on the entire contact surface of the pressure plates 3.
- a liquid medium preferably of a hardenable material, For example, synthetic resin, filled by an inlet 7.
- This liquid Material is with the pressure plates 3 and thus to the composite material 5 with a hydraulic pressure of at least 100 bar, preferably at least 400 bar pressed.
- the inlet 7 is closed, in liquid Media preferably with a valve. Does the liquid medium consist of one hardenable material, a closure is not needed.
- the voltage curve is comparable to the voltage curve shown in Figure 1 b.
- 4a is a fourth embodiment with a force introduction element 13, in which a cross-beam 2a at any point the bow-shaped yoke 2b is arranged.
- 3a, 3b are used to transmit power to the pressure plates 3 two hydraulically acting Used pressure chambers 4b, which divided by the cross-beam become.
- the voltage curve thus obtained corresponds to that of the figure Second
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
- Fig. 1
- Eine schematische Draufsicht einer ersten Ausführungsform;
- Fig. 1 a
- Ein Querschnitt der ersten Ausführungsform entlang I-I in Fig. 1;
- Fig. 1 b
- Ein Längsschnitt der ersten Ausführungsform entlang II-II in Fig. 1;
- Fig. 1 c
- Ein Längsschnitt der ersten Ausführungsform entlang II-II in Fig. 1;
- Fig. 2
- Eine schematische Seitenansicht einer zweiten Ausführungsform;
- Fig. 2a
- Eine schematische Seitenansicht einer weiteren Ausführung der zweiten Ausführungsform;
- Fig. 3
- Eine schematische Draufsicht einer dritten Ausführungsform;
- Fig. 3a
- Ein Querschnitt der dritten Ausführungsform entlang I-I in Fig. 3;
- Fig. 3b
- Ein Längsschnitt der dritten Ausführungsform entlang II-II in Fig. 3;
- Fig. 4
- Eine schematische Draufsicht einer vierten Ausführungsform;
- Fig. 4a
- Ein Längsschnitt der vierten Ausführungsform entlang I-I in Fig. 4.
- 1
- Krafteinleitungselement mit Druckelement 4a
- 2a
- Quer-Traverse
- 2b
- Bügelförmiges Joch
- 3
- Anpressplatte
- 4a
- Druckelement
- 4b
- Druckkammer
- 5
- Bandförmiger Verbundwerkstoff
- 6
- Aussparung
- 7
- Einlass für Medium
- 8
- Gewindeschraube
- 9
- Gewindestange
- 10
- Tragstruktur
- 11
- Zugrichtung
- 12
- Spannungsdiagramm
- 13
- Krafteinleitungselement mit Druckkammer 4b
- 14
- Verklebung
Claims (12)
- Krafteinleitungselement (1, 13) zur Verankerung eines bandförmigen Verbundwerkstoffs (5) an einer Tragstruktur (10), wobei eine Kraftübertragung von der Tragstruktur (10) auf den Verbundwerkstoff (5) mittels mindestens einer Anpressplatte (3) erfolgt, dadurch gekennzeichnet, dass die Anpressplatte (3) durch mindestens ein Mittel (4a, 4b) an den Verbundwerkstoff (5) angepresst ist, und dass das Mittel (4a, 4b) über ein bügelförmiges Joch (2b) abgestützt ist.
- Krafteinleitungselement (1, 13) nach Anspruch 1, dadurch gekennzeichnet, dass eine Verklebung (14) zwischen dem Verbundwerkstoff (5) und der Anpressplatte (3) und/oder einer Quer-Traverse (2a) angeordnet ist.
- Krafteinleitungselement (1, 13) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Mittel (4a, 4b) mindestens ein Druckelement (4a) ist.
- Krafteinleitungselement (1) nach Anspruch 3, dadurch gekennzeichnet, dass das Druckelement (4a) eine Schraube ist.
- Krafteinleitungselement (1, 13) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Mittel (4a, 4b) mindestens eine Druckkammer (4b) ist.
- Krafteinleitungselement (13) nach Anspruch 5, dadurch gekennzeichnet, dass die Anpressplatte (3) mittels mindestens einer mit einem flüssigen Medium gefüllten hydraulischen Druckkammer (4b) angepresst ist.
- Krafteinleitungselement (13) nach Anspruch 6, dadurch gekennzeichnet, dass das flüssige Medium aus einem aushärtbaren Material, insbesondere einem Kunstharz, besteht.
- Krafteinleitungselement (13) nach einem der Ansprüchen 6 oder 7, dadurch gekennzeichnet, dass das flüssige Medium nach dem Einführen in die Druckkammer einen Druck von mindestens 100 bar, insbesondere mindestens 400 bar, aufweist.
- Krafteinleitungselement (1, 13) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Quer-Traverse (2a) an einer beliebigen Stelle an dem bügelförmigen Joch (2b) angeordnet ist.
- Verfahren zum Anbringen eines Krafteinleitungselementes (1, 13) an eine Tragstruktur (10), wobei das Krafteinleitungselement (1, 13) zur Verankerung eines bandförmigen Verbundwerkstoffs (5) dient und eine Kraftübertragung von der Tragstruktur (10) auf den Verbundwerkstoff (5) mittels mindestens einer Anpressplatte (3) erfolgt, dadurch gekennzeichnet, dass der Verbundwerkstoff in ein bügelförmiges Joch (2b) eingeführt wird, dass die Anpressplatte (3) durch mindestens ein Mittel (4a, 4b) an den Verbundwerkstoff (5) angepresst wird, wobei das Mittel (4a, 4b) über das bügelförmige Joch (2b) abgestützt wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass eine Quer-Traverse (2a), welche mit der Tragstruktur (10) in Wirkverbindung steht, entweder stirnseitig oder an einer beliebigen Stelle an dem bügelförmigen Joch (2b) angebracht wird.
- Verwendung eines Krafteinleitungselementes (1) nach Ansprüchen 1 bis 9 zur Verstärkung einer Tragstruktur (10), insbesondere einer Betonstruktur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03018365A EP1507051A1 (de) | 2003-08-13 | 2003-08-13 | Krafteinleitungselement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03018365A EP1507051A1 (de) | 2003-08-13 | 2003-08-13 | Krafteinleitungselement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1507051A1 true EP1507051A1 (de) | 2005-02-16 |
Family
ID=33560787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03018365A Withdrawn EP1507051A1 (de) | 2003-08-13 | 2003-08-13 | Krafteinleitungselement |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1507051A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541513A (zh) * | 2013-09-22 | 2014-01-29 | 沈阳建筑大学 | 一种内镶frp筋加固混凝土锚固件 |
| CZ308302B6 (cs) * | 2018-10-10 | 2020-04-29 | ÄŚeskĂ© vysokĂ© uÄŤenĂ technickĂ© v Praze | Přípravek pro předepnutí a kotvení kompozitních pásů a/nebo lamel ve zdivu |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02266050A (ja) * | 1989-04-04 | 1990-10-30 | Tokyu Constr Co Ltd | 炭素繊維強化プラスチック平面板の定着方法及び定着装置 |
| JPH02272151A (ja) * | 1989-04-13 | 1990-11-06 | Tokyu Constr Co Ltd | 炭素繊維強化プラスチック平面板の定着方法 |
| JP2000038805A (ja) * | 1998-07-22 | 2000-02-08 | Toray Ind Inc | Frp筋の定着法 |
| WO2001020097A1 (de) * | 1999-09-15 | 2001-03-22 | Eidgenössische Materialprüfungs- und Forschungsanstalt Empa | Verankerungssystem zur aufnahme der zugkräfte von kohlefaserverstärkten zugbändern (cfk-bändern) |
| DE10060459A1 (de) * | 2000-09-21 | 2002-04-11 | Gert Koenig | Spannverankerung und Koppelung für Stahl- und Faserlamellen |
| JP2002364185A (ja) * | 2001-06-12 | 2002-12-18 | Faibekkusu Kk | 構造物補強シートの緊張接着補強方法及び装置 |
-
2003
- 2003-08-13 EP EP03018365A patent/EP1507051A1/de not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02266050A (ja) * | 1989-04-04 | 1990-10-30 | Tokyu Constr Co Ltd | 炭素繊維強化プラスチック平面板の定着方法及び定着装置 |
| JPH02272151A (ja) * | 1989-04-13 | 1990-11-06 | Tokyu Constr Co Ltd | 炭素繊維強化プラスチック平面板の定着方法 |
| JP2000038805A (ja) * | 1998-07-22 | 2000-02-08 | Toray Ind Inc | Frp筋の定着法 |
| WO2001020097A1 (de) * | 1999-09-15 | 2001-03-22 | Eidgenössische Materialprüfungs- und Forschungsanstalt Empa | Verankerungssystem zur aufnahme der zugkräfte von kohlefaserverstärkten zugbändern (cfk-bändern) |
| DE10060459A1 (de) * | 2000-09-21 | 2002-04-11 | Gert Koenig | Spannverankerung und Koppelung für Stahl- und Faserlamellen |
| JP2002364185A (ja) * | 2001-06-12 | 2002-12-18 | Faibekkusu Kk | 構造物補強シートの緊張接着補強方法及び装置 |
Non-Patent Citations (4)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 0150, no. 21 (M - 1070) 17 January 1991 (1991-01-17) * |
| PATENT ABSTRACTS OF JAPAN vol. 0150, no. 32 (M - 1073) 25 January 1991 (1991-01-25) * |
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) * |
| PATENT ABSTRACTS OF JAPAN vol. 2003, no. 04 2 April 2003 (2003-04-02) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541513A (zh) * | 2013-09-22 | 2014-01-29 | 沈阳建筑大学 | 一种内镶frp筋加固混凝土锚固件 |
| CN103541513B (zh) * | 2013-09-22 | 2016-04-20 | 沈阳建筑大学 | 一种内镶frp筋加固混凝土锚固件 |
| CZ308302B6 (cs) * | 2018-10-10 | 2020-04-29 | ÄŚeskĂ© vysokĂ© uÄŤenĂ technickĂ© v Praze | Přípravek pro předepnutí a kotvení kompozitních pásů a/nebo lamel ve zdivu |
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