EP1409808A2 - Armature pour surfaces de batiments - Google Patents

Armature pour surfaces de batiments

Info

Publication number
EP1409808A2
EP1409808A2 EP01969322A EP01969322A EP1409808A2 EP 1409808 A2 EP1409808 A2 EP 1409808A2 EP 01969322 A EP01969322 A EP 01969322A EP 01969322 A EP01969322 A EP 01969322A EP 1409808 A2 EP1409808 A2 EP 1409808A2
Authority
EP
European Patent Office
Prior art keywords
holding member
base layer
laminate
reinforcement according
ceiling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01969322A
Other languages
German (de)
English (en)
Inventor
Josef Scherer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP1409808A2 publication Critical patent/EP1409808A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • 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
    • 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

Definitions

  • the invention relates to a reinforcement for building surfaces, which has the following features:
  • At least one base layer which has fibers arranged at least substantially in a directional direction and at an acute angle, in particular at least approximately parallel, to the direction of tensile stresses in an adjacent area of the structure, which fibers are optionally held in a mutual shear bond by binder material.
  • At least one binding layer is provided, which is formed in particular by binder material of the base layer and forms a force flow, in particular transmitting shear stress, between the base layer and the surface of the building.
  • Such reinforcements are known and are mainly used for the reinforcement and repair of highly stressed structures, e.g. Bridges, halls, load-bearing ceilings, foundations and the like. These are generally concrete buildings with internal steel reinforcement.
  • Laminates made of high-strength and high-modulus (high tensile modulus) carbon fibers are particularly suitable for the base layers of the present surface reinforcements, but laminates made of corresponding polymer fibers may also be considered.
  • the focus is on the aspect of long-term security of load-bearing capacity and stability.
  • the laminates are generally glued to building surfaces in the area of tension.
  • the long-term maintenance of the shear connection and the security against detachment of the laminate from the building surface are important.
  • the object of the invention is therefore to provide a reinforcement of the type mentioned, which is characterized by increased long-term durability and safety.
  • At least one holding member is provided, which is dimensionally rigid in at least one direction of loading with respect to tensile stresses and is arranged with its tension transmission next to or in a force flow between the base layer and the building surface.
  • the solution according to the invention comprises two basic variants with the following alternative features:
  • the holding member comprises at least one fiber laminate with at least substantially directional and at an acute angle, in particular at least approximately parallel, fibers arranged in a direction of tension, which are optionally held in a reciprocal thrust bond by binder material, the laminate fibers of the Retaining member are arranged at an acute angle, in particular transversely, to the fibers of the base layer and the retaining member is connected on the one hand to the base layer and on the other hand to at least one surface section of the structure in a material and / or form-fitting manner (claim 2).
  • At least one dimensionally stable in particular made of high-strength, preferably metallic or synthetic flat material holding member is provided, which encompasses a beam cross-section and anchors it positively and / or cohesively and with at least one along the beam body extending support layer is integrally connected (claims 10 and 11).
  • Fig.l shows in cross section a concrete ceiling beam B with usual internal steel reinforcements A.
  • a base layer TS consisting of two strip-shaped longitudinal slats LL is provided, which is at least essentially directional and under one point Angle, in particular at least approximately parallel, has fibers arranged in an adjacent area of the structure to the direction of tensile stresses. These fibers are held in a mutual shear bond in the usual way by binder material.
  • a binding layer BS which is formed in particular by binder material of the base layer, is provided, which forms a force flow, in particular transmitting shear stress, between the base layer and the building surface BO is arranged next to or in a force flow between the base layer TS and the building surface BO.
  • the holding member HGl comprises at least one fiber laminate with at least essentially directional and at an acute angle, in particular at least approximately parallel, fibers arranged in a direction of tension, which are also held in a mutual shear bond by binder material.
  • the laminate fibers of the holding member HGL are arranged at an acute angle, in particular transversely, to the fibers of the base layer TS.
  • This laminate as part of the holding member is referred to below as cross-laminate LQ.
  • the holding member HG1 or its transverse laminate LQ is on the one hand cohesively connected to the base layer TS and on the other hand to at least one surface section of the building, namely by gluing.
  • a form-fit connection can also be considered under suitable conditions, or even alone
  • the holding member HGL with its queer laminates LQ encloses the bar B in a bow-like manner from below, with large adhesive surfaces on the flanks of the bar.
  • the corresponding binding or adhesive layers are more common
  • the cross laminates LQ are guided on both bracket legs beyond the beam flanks through slots SL in the adjacent ceiling area D to the top of the ceiling and there - advantageously with mutual overlap - firmly anchored by gluing.
  • FIG. 2 shows a perspective view from below of a similar construction on a ceiling beam B, but with a holding member HGl, which comprises a plurality of bow-like transverse laminates LQ, which are distributed in the longitudinal direction of the beam.
  • HGl which comprises a plurality of bow-like transverse laminates LQ, which are distributed in the longitudinal direction of the beam.
  • the latter are here guided through slots SL milled parallel to the ceiling area in the area of the beam near the ceiling and in turn are advantageously anchored there with mutual overlap by adhesive bonding.
  • the slots are expediently filled in by pressing in high-strength curing polymer compositions.
  • laminate holding members in FIG. 3 is a surface reinforcement in the form of a grid-like or checkerboard-like, overall planar arrangement of longitudinal and transverse laminates connected to one another with material and / or form-fitting connection and extending along a building surface BO.
  • LL and LQ indicated. 4 shows in a vertical longitudinal section the example of a solid, in particular plate-shaped holding member HG2, which on the one hand is integrally connected to a base layer TS and on the other is anchored in a form-fitting manner in at least one adjacent area of the building.
  • the shear-resistant bond can thus be shifted essentially into a clean and precisely flat joint between the plate-shaped holding member and the laminate of the base layer, which results in a significantly increased securing effect.
  • the further transmission of force into the building structure is carried out by simple, but extremely stable form-fitting connections, namely, for example, dowel screw connections DS, which are common elements per se and are only indicated schematically here by dash-dotted lines.
  • FIG. 6 again shows in cross section a ceiling beam B with a dimensionally stable, in particular made of high-strength, preferably metallic or synthetic flat material and bow-shaped holding member HG3, which engages around the beam cross-section and anchored to it by means of dowel screw connections DS and with at least one longitudinally of the beam body extending longitudinal laminates LL is integrally connected.
  • the stirrup legs S of the holding member extend along the beam height and offer extensive space for dowels without colliding with interior reinforcements A.
  • a variant is indicated in broken lines in FIG. 6, according to which the end sections (corresponding length) of the bow legs S offer additional anchoring options through slots milled into the deck (not shown here). Furthermore, these slots can even lead to the top surface of the ceiling and the correspondingly elongated temple ends can be connected to one another there in a form-fitting manner.
  • FIG. 7 differs from that according to FIG. 6 essentially by angled end sections of the temple ends of the holding member HG3. These end sections offer a simple, but very effective, option for anchoring the holding member by means of dowel screws engaging in the ceiling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

L'invention concerne une armature pour surfaces de bâtiments ou de parties de bâtiments, caractérisée en ce qu'elle comprend au moins une couche portante (TS) contenant des fibres agencées dans une zone adjacente du bâtiment, de manière sensiblement unidirectionnelle et à un angle aigu, en particulier au moins presque parallèlement au sens des contraintes de traction, ces fibres étant éventuellement maintenues par un liant dans un composite de cisaillement opposé. L'invention concerne également au moins une couche de liage (BS), formée en particulier à partir du liant de la couche portante. Cette couche de liage génère un flux de force, en particulier transférant une contrainte de cisaillement, entre la couche portante et la surface de bâtiment (BO). L'invention a pour objectif de produire une armature du type mentionné caractérisée par sa fiabilité et une durabilité à long terme accrue. A cet effet, un élément de maintien (HG1, HG2), conçu de manière indéformable dans un moins un sens de charge par rapport aux contraintes de traction, est agencé avec son transfert de contrainte adjacent à ou dans un flux de force entre la couche portante (TS) et la surface de bâtiment (BO).
EP01969322A 2000-07-07 2001-06-27 Armature pour surfaces de batiments Withdrawn EP1409808A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10032595A DE10032595A1 (de) 2000-07-07 2000-07-07 Armierung für Bauwerksoberflächen
DE10032595 2000-07-07
PCT/EP2001/007355 WO2002004759A2 (fr) 2000-07-07 2001-06-27 Armature pour surfaces de batiments

Publications (1)

Publication Number Publication Date
EP1409808A2 true EP1409808A2 (fr) 2004-04-21

Family

ID=7647826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01969322A Withdrawn EP1409808A2 (fr) 2000-07-07 2001-06-27 Armature pour surfaces de batiments

Country Status (4)

Country Link
EP (1) EP1409808A2 (fr)
AU (1) AU2001289613A1 (fr)
DE (1) DE10032595A1 (fr)
WO (1) WO2002004759A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865490B1 (fr) * 2004-01-23 2006-04-28 Lefevre Sa M Procede et dispositif de renforcement de structure.
CN106245837A (zh) * 2016-09-06 2016-12-21 南京工业大学 一种装配式gfrp拉挤型材‑芯木组合楼板结构体系

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687399A5 (de) * 1992-04-06 1996-11-29 Eidgenoessische Materialpruefung Verfahren und Vorrichtung zur Schubverstaerkung an einem Bauwerkteil.
AU2114995A (en) * 1994-10-19 1996-05-15 Dpd, Inc. Shape-memory material repair system and method of use therefor
JP3079965B2 (ja) * 1995-08-28 2000-08-21 株式会社大林組 梁の補強方法
JPH0972102A (ja) * 1995-09-01 1997-03-18 Kumagai Gumi Co Ltd 建築物の梁、床または壁の補強構造
DE19733067A1 (de) * 1997-07-31 1999-02-04 Sika Ag Flachband-Lamelle zur Verstärkung von Bauteilen sowie Verfahren zur Anbringung der Flachband-Lamelle an einem Bauteil
KR100408437B1 (ko) * 1997-09-16 2003-12-06 신닛뽄세이테쯔 카부시키카이샤 콘크리트 부재의 보강 구조 및 보강 공법
DE19914847A1 (de) * 1999-04-01 2000-10-26 Bilfinger Berger Bau Verankerung für ein flächiges Bewehrungselement aus Kunststoff
DE19944573A1 (de) * 1999-09-17 2001-03-22 Josef Scherer Verstärkungsanordnung für Bauwerke und Bauwerksteile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0204759A3 *

Also Published As

Publication number Publication date
AU2001289613A1 (en) 2002-01-21
DE10032595A1 (de) 2002-01-17
WO2002004759A3 (fr) 2002-04-25
WO2002004759A2 (fr) 2002-01-17

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