EP2088259A1 - Procédé et dispositif de pré-tension d'éléments de renforcement sur des constructions - Google Patents
Procédé et dispositif de pré-tension d'éléments de renforcement sur des constructions Download PDFInfo
- Publication number
- EP2088259A1 EP2088259A1 EP09151200A EP09151200A EP2088259A1 EP 2088259 A1 EP2088259 A1 EP 2088259A1 EP 09151200 A EP09151200 A EP 09151200A EP 09151200 A EP09151200 A EP 09151200A EP 2088259 A1 EP2088259 A1 EP 2088259A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- metal body
- box
- laminate
- reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002787 reinforcement Effects 0.000 title abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 16
- 230000001070 adhesive effect Effects 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 37
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 12
- 239000004567 concrete Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
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
- 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
- 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 relates to a method and an apparatus for tensioning unidirectional fiber laminates having a high tensile strength and also a tensile elastic modulus.
- the fiber laminates are bonded to the bending-stressed side of a concrete or reinforced concrete component under tension.
- the object of the present invention is to provide a method and a device by means of which a bias voltage can be generated, which stops during the curing of the adhesive, but the tension building part of the device after the construction of the bias voltage is removable, so that part on other devices for building there required bias voltage is used, that is successively flying on a variety of devices can be used. This should make the construction site process more flexible and faster.
- This object is achieved by a method for prestressing reinforcing laminates on structures in which the prestressing between the structure and a clamping shoe attached at the end to the reinforcing laminate with the adhesive not yet cured under the reinforcing laminate by means of a flyable hydraulic cylinder insertable into the clamping device. Piston unit is generated, then the bias voltage is maintained by extending screws between the clamping device and the clamping shoe, and the hydraulic cylinder-piston unit is maintained while maintaining the bias held by the set screws, and after curing of the adhesive, the clamping device and the clamping shoe from the building become.
- an apparatus for prestressing reinforcing laminates on structures comprising a clamping shoe for clamping the reinforcing laminate end to be clamped and a box-like metal body which forms a flat base plate at the bottom and forms an open box at the top, the metal body indirectly by means of a protruding from its underside screws with a building is zugmony connectable and at one end has two setscrews which are vertically extendable out of the local metal body wall to strike the laminate side end wall of the clamping shoe, and an associated cylinder-piston unit, which in the box-like metal body is inserted, so that its one side on the inner wall of the box-like metal body finds a stop, and is held on the opposite side of the cylinder in the box wall cut out for this purpose and the piston in the same direction as the Stell screws through this box wall is extendable through, for acting on the laminate side end wall of the clamping shoe.
- the device for prestressing reinforcing laminates on structures consists of a clamping shoe 1 for clamping the reinforcing laminate end 2 to be clamped and a box-like metal body 3 which forms a flat base plate at the bottom and forms an open box at the top.
- the metal body 3 is located on a Endverank ceremoniessplatte, which is zugraäftig connectable by means of projecting from its underside dowel screws 4 with a building 5.
- the metal body 3 is very strongly connected to this Endverank ceremoniessplatte about more screws 14.
- it has two setscrews 6, which are externally vertically extendable out of the local metal body outer side 7, to strike the laminate-side end wall 8 of the clamping shoe 1.
- the device further includes an associated cylinder-piston unit 9 which is insertable into the box-like metal body 3.
- an associated cylinder-piston unit 9 which is insertable into the box-like metal body 3.
- its one side on the inner wall 10 of the box-like metal body 3 finds a stop, and on the opposite side of the cylinder 11 of the unit 9 is held in the box wall 12 cut out for this purpose.
- the piston 13 is extendable in the same direction as the set screws 6 through this box wall 18 and serves to act on the laminate side end wall 8 of the clamping shoe 1.
- the whole box-like metal body is preferably formed from an integrally machined from the solid aluminum block and has a length of about 30cm up. On its underside encloses a separate, to be lost in use, not visible here Endverank ceremoniessplatte.
- the side walls 12 of the box-like metal body 3 are cut out from above, so that trapezoidal cutouts are formed. As a result, reinforcements are maintained, which reinforce the end walls together to increased traction
- the associated clamping shoe 1 consists of two hingedly connected parts 15,16, as shown in the FIG. 2 is apparent. These parts have mutually matching curved clamping surfaces, for accurately fitting inclusion of a reinforcing laminate end 20 are used, and which can be pressed against each other by means of screw 21.
- the end, directed in the direction of clamped reinforcing laminate 2 wall 8 is at Wegklemmetem reinforcing laminate 2 perpendicular to the base side and is equipped with a concave Zentrierpfanne 22 as a coupling member, in which the convex piston tip 23 fits.
- the associated clamping shoe 1 is equipped on its front support edge with an angular plastic profile 17.
- the side walls 12 of the box-like metal body 3 are cut out, and the end walls are made as high as in the metal body inserted cylinder-piston unit 9 in its then-lying state.
- FIG. 3 shows for this purpose a building 5 in the form of a bridge, the left rests fixed and right on a dilatation 24. At a bridge reinforcing laminates are typically glued to the bottom to increase the clamping force of the building 5.
- the dowels are placed in the base made of concrete or reinforced concrete. Adhesive dowels or expansion dowels can be used. For example, four such dowels and screws 4 are displaced on each side. Here you can see only the front four screws 4, which obscure the view of the rear four.
- the base is roughened and the adhesive 25 applied in the area where the fiber laminate 2 is applied, as in FIG. 4 shown.
- the fiber laminate 2 is temporarily positioned in the adhesive.
- the strip-shaped reinforcing laminate 2 extends between the two rows of screws. Thus, only the front screws 4 are visible, while those behind the reinforcing laminate 2 are not visible.
- end anchoring plates 19 are applied to the reinforcing laminate 2 with another layer of adhesive 25 and tightened with the screws 4, so that the end anchoring plates 19 clamp the reinforcing laminate 2 in those places for provisional securing, as in FIG FIG. 5 shown.
- the adhesive 25 is not yet cured, so that therefore the reinforcing laminate 2 can still pull under tension on the adhesive layer.
- the tensioning devices are attached.
- the metal body 3 are screwed by means of separate fastening screws 14 on the Endverank ceremoniessplatten 19 and braced vigorously with them.
- the clamping shoes 1 are mounted and by screwing their hinged part, the reinforcing laminate 2 between these parts 15.16 clamped.
- the clamping shoes 1 are then on the building. Now for biasing the reinforcing laminate 2 on the one side only a hydraulic cylinder-piston unit 9 is inserted into the local metal body 3 and with a hand pump hydraulic fluid is pumped via the hydraulic line 26 in the same, so that the piston 13 extends and the clamping shoe 1 is applied.
- the pressure force used in this case is about 120 kN in the order of magnitude and the path due to the prestressing is 2 to about 15 mm, depending on the length of the reinforcing laminate.
- the coupling member in the form of the centering pan 22 ensures that the forces are introduced centrally into the fiber laminate.
- eccentricities which arise during the clamping process are compensated. Namely, the unidirectional fiber laminate is incapable of absorbing eccentric stresses. Accordingly, the coupling member, that is, this centering pan 22 is of extraordinary importance for the clamping operation.
- the pretensioning device is designed so that the tensioning device can be applied to both fin ends. In the case of on-site space problems, it is therefore possible, thanks to this clamping device, to carry out the clamping operation on the left or right-hand fin end.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Bridges Or Land Bridges (AREA)
- Body Structure For Vehicles (AREA)
- Rod-Shaped Construction Members (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09151200T PL2088259T3 (pl) | 2008-02-08 | 2009-01-23 | Urządzenie do wstępnego naprężania elementów wzmacniających budowli |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00177/08A CH701655B1 (de) | 2008-02-08 | 2008-02-08 | Verfahren und Vorrichtung zum Vorspannen von Verstärkungslaminaten an Bauwerken. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2088259A1 true EP2088259A1 (fr) | 2009-08-12 |
EP2088259B1 EP2088259B1 (fr) | 2011-10-12 |
Family
ID=40535646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09151200A Active EP2088259B1 (fr) | 2008-02-08 | 2009-01-23 | Dispositif de pré-tension d'éléments de renforcement sur des constructions |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2088259B1 (fr) |
AT (1) | ATE528462T1 (fr) |
CH (1) | CH701655B1 (fr) |
ES (1) | ES2377266T3 (fr) |
PL (1) | PL2088259T3 (fr) |
PT (1) | PT2088259E (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105064696A (zh) * | 2015-09-06 | 2015-11-18 | 福州卓强加固工程有限公司 | 一种预应力碳纤维板的张拉设备 |
CN106703433A (zh) * | 2016-12-29 | 2017-05-24 | 华北水利水电大学 | 一种预应力纤维片材组合装配式张拉装置及其施工方法 |
CN107859348A (zh) * | 2017-10-20 | 2018-03-30 | 长安大学 | 纤维织物主动施力系统 |
CN112854801A (zh) * | 2021-01-08 | 2021-05-28 | 黄璟雯 | 一种建筑结构加固连接装置 |
EP4071321A1 (fr) | 2021-04-07 | 2022-10-12 | Vilniaus Gedimino technikos universitetas | Dispositif et procédé pour structures de renforcement avec stratifiés de polymère renforcé de fibres pré-contraints |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849605A1 (de) * | 1998-10-28 | 2000-05-04 | Goehler Andrae Und Partner Ber | Spannvorrichtung für ein bandförmiges Zugglied |
DE19944573A1 (de) * | 1999-09-17 | 2001-03-22 | Josef Scherer | Verstärkungsanordnung für Bauwerke und Bauwerksteile |
WO2002016710A2 (fr) * | 2000-08-16 | 2002-02-28 | Josef Scherer | Dispositif de serrage d'elements de renforcement |
DE10249266B3 (de) * | 2002-10-23 | 2004-04-08 | Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH | Spannvorrichtung für bandförmige Zugglieder |
EP1507048A1 (fr) * | 2003-08-14 | 2005-02-16 | Sika Technology AG | Procédé de mise sous tension d'un matériau composite |
-
2008
- 2008-02-08 CH CH00177/08A patent/CH701655B1/de not_active IP Right Cessation
-
2009
- 2009-01-23 PT PT09151200T patent/PT2088259E/pt unknown
- 2009-01-23 AT AT09151200T patent/ATE528462T1/de active
- 2009-01-23 ES ES09151200T patent/ES2377266T3/es active Active
- 2009-01-23 EP EP09151200A patent/EP2088259B1/fr active Active
- 2009-01-23 PL PL09151200T patent/PL2088259T3/pl unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849605A1 (de) * | 1998-10-28 | 2000-05-04 | Goehler Andrae Und Partner Ber | Spannvorrichtung für ein bandförmiges Zugglied |
DE19944573A1 (de) * | 1999-09-17 | 2001-03-22 | Josef Scherer | Verstärkungsanordnung für Bauwerke und Bauwerksteile |
WO2002016710A2 (fr) * | 2000-08-16 | 2002-02-28 | Josef Scherer | Dispositif de serrage d'elements de renforcement |
DE10249266B3 (de) * | 2002-10-23 | 2004-04-08 | Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH | Spannvorrichtung für bandförmige Zugglieder |
EP1507048A1 (fr) * | 2003-08-14 | 2005-02-16 | Sika Technology AG | Procédé de mise sous tension d'un matériau composite |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105064696A (zh) * | 2015-09-06 | 2015-11-18 | 福州卓强加固工程有限公司 | 一种预应力碳纤维板的张拉设备 |
CN106703433A (zh) * | 2016-12-29 | 2017-05-24 | 华北水利水电大学 | 一种预应力纤维片材组合装配式张拉装置及其施工方法 |
CN107859348A (zh) * | 2017-10-20 | 2018-03-30 | 长安大学 | 纤维织物主动施力系统 |
CN107859348B (zh) * | 2017-10-20 | 2020-05-05 | 长安大学 | 纤维织物主动施力系统 |
CN112854801A (zh) * | 2021-01-08 | 2021-05-28 | 黄璟雯 | 一种建筑结构加固连接装置 |
EP4071321A1 (fr) | 2021-04-07 | 2022-10-12 | Vilniaus Gedimino technikos universitetas | Dispositif et procédé pour structures de renforcement avec stratifiés de polymère renforcé de fibres pré-contraints |
Also Published As
Publication number | Publication date |
---|---|
ES2377266T3 (es) | 2012-03-26 |
EP2088259B1 (fr) | 2011-10-12 |
PT2088259E (pt) | 2012-01-12 |
PL2088259T3 (pl) | 2012-06-29 |
ATE528462T1 (de) | 2011-10-15 |
CH701655B1 (de) | 2011-02-28 |
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