EP1452670A1 - Procédé de renforcement d'un élément de construction et élément de construction - Google Patents
Procédé de renforcement d'un élément de construction et élément de construction Download PDFInfo
- Publication number
- EP1452670A1 EP1452670A1 EP04290351A EP04290351A EP1452670A1 EP 1452670 A1 EP1452670 A1 EP 1452670A1 EP 04290351 A EP04290351 A EP 04290351A EP 04290351 A EP04290351 A EP 04290351A EP 1452670 A1 EP1452670 A1 EP 1452670A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- modules
- prefabricated
- building element
- connectors
- binder
- 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 28
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 34
- 238000010276 construction Methods 0.000 claims abstract description 22
- 230000002787 reinforcement Effects 0.000 claims description 21
- 239000004570 mortar (masonry) Substances 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 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
- E04G23/0233—Increasing or restoring the load-bearing capacity of building construction elements of vaulted or arched building 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 present invention relates to the field of strengthening masonry, wooden or other building structures extending between two support points and working in flexion like a beam or in compression like an arch.
- the invention applies especially to old constructions and recent constructions in aggressive environments, especially marine.
- the restoration of a vault of a load-bearing arch vault in case of cracking, degradation, deformation can be carried out, either by lime grout, the success of this process being random, either by replacing degraded or broken elements requiring scaffolding, or even a reconstruction of the structure.
- the invention aims to simplify the implementation of the reinforcement by facilitating its installation.
- the invention also aims to reduce the size of the enhancement.
- the connectors are fixed in the modules prefabricated before the addition of said prefabricated modules on the element of construction.
- the connectors can be fixed in the factory prefabricated modules.
- Factory prefabricated modules can also benefit from a composition and a more regular particle size than mortar or concrete mixed on site.
- the connectors can be fixed in the prefabricated modules when the prefabrication of said modules.
- the connectors are fixed in the building element before adding the prefabricated modules on the building element.
- This variant is well suited to a building element having a surface irregular.
- a binder layer on the top surface of the building element before adding the prefabricated modules on the building element.
- the binder allows a transmission of mechanical forces between the building element and the prefabricated modules.
- the element of construction is a beam.
- the beam can be a stone lintel, a concrete beam or a metal beam.
- the element of construction is an arch, for example of stone or brick.
- the prefabricated modules include concrete.
- the prefabricated modules can be made of concrete fibers or concrete loaded with silica fumes.
- the connectors are rods based on fibers, for example glass or carbon fibers and resin epoxide.
- the binder comprises a resin mortar, for example based on epoxy resin.
- the prefabricated modules are presented under the shape of polygonal plates whose edges are provided with reliefs designed to favor the transmission of mechanical forces to neighboring prefabricated modules.
- Prefabricated modules can be arranged in a layer.
- the prefabricated modules can be present in a square form with a triangular toothing on their edges, rectangular in shape with round or sinusoidal toothing, or even triangular with partial overlap allowing a connector to pass through two prefabricated modules.
- the invention also provides a building element disposed between at least two supports and working in flexion or in compression, said building element comprising a reinforcement disposed on an upper face of said element construction and provided with a plurality of prefabricated modules of reinforcement, connectors connecting said prefabricated modules and said building element, and a binder disposed between said prefabricated modules and said building element.
- a beam 1 by wooden example, has a top surface 1a on which is disposed a reinforcement 2.
- the reinforcement 2 comprises a plurality of prefabricated reinforcement modules 3, a plurality of connectors, here two connectors 4, 5, per prefabricated module 3, one binder layer 6 disposed between the prefabricated modules 3 and the upper surface 1a of the beam 1, and a layer of binder 7 disposed between the prefabricated modules 3.
- a plurality of joists 8 rest by one of their ends on the upper surface 1a of the beam 1.
- a floor 9 is fixed to the joists 8.
- the height of the joists 8 can be of the order of 0.15 m. for example.
- the reinforcement 2 can be produced as following.
- the modules 3 are prefabricated in series in a industrial establishment, with the aim of reducing costs and consistency of their mechanical characteristics. For construction sites with special requirements, the shape of the modules 3 can be adapted.
- Connectors 4, 5 are secured to modules 3 during prefabrication, and arranged according to a predefined template. On the site where beam 1 is located, access to the upper surface is cleared 1a by removing the floors, insulation, etc., which cover it.
- a plurality of blind holes are drilled in beam 1 from upper surface 1a according to the same template as that quoted above. These terminal holes are intended for receive the end of connectors 4, 5 opposite to that embedded in prefabricated modules 3. You can also dig into the surface upper 1a of the beam 1 a plurality of notches or notches favoring the future attachment of the binder layer 6 and allowing thus a better transmission of mechanical forces, in particular of shear between beam 1 and reinforcement 2, for the purpose increase the working section of the reinforced beam.
- the surface lower 3a of the prefabricated modules 3 is advantageously provided concavities and roughness allowing better attachment with the layer of binder 6.
- the resin mortar is advantageously a mortar based on epoxy resin, whether or not loaded with quartz, glass fibers, fibers carbon, etc. This mortar must be able to be used under the atmospheric pressure and have a setting without shrinkage.
- Connectors which allow the modules to be secured prefabricated 3 and beam 1, are made from materials having good mechanical qualities and not very sensitive to corrosion, e.g. glass fibers, carbon, fibers aramids, high-strength steel, especially stainless steel.
- the connectors can be in the form of straight rods, a diameter of the order of 5 to 30 mm, or in the form of rods bent in a U like a staple, the bottom of the U being embedded in a module 3 or arranged on its upper surface.
- the connectors have a length very slightly less than the height of the reinforced beam, to take up sharp forces.
- the prefabricated modules 3 can be made on the basis of concrete.
- This concrete can be reinforced.
- a concrete with high mechanical resistance such as concrete loaded with fibers or powders, such as silica fumes.
- We can thus reduce the thickness of the prefabricated modules 3 and reduce their mass, which facilitates their installation or allows, with equal mass, to enlarge their dimensions and reduce their number.
- the reinforcement will lower height with equal resistance which is an advantage determining in certain sites, in particular to preserve the original floor height.
- the reinforcement 2 has a height substantially equal to that of joists 8.
- prefabricated modules 3 with a length of between 0.5 and 1.2 meters, for example of about 1 meter and variable width depending on the intended application and the width of the beam 1.
- Such modules can be manipulated easily by a single operator, including in access locations difficult.
- the invention allows a simplified installation of the reinforcement, avoids the use of formwork which is always time consuming, and therefore saves labor and faster site execution.
- FIG. 2 is illustrated a variant in which the prefabricated modules 3, instead of being in the form of simple rectangular parallelepipeds as in the embodiment above, are here provided with a shoulder on their edges.
- the prefabricated module 3 includes a reduced thickness shoulder 10 arranged in the lower position, in contact with the binder layer 6.
- the prefabricated module adjacent to prefabricated module 3 includes a upper shoulder 12 which covers the shoulder 10 of the prefabricated module 3.
- the space 13 remaining between the shoulders 10 and 12, is filled with a layer of binder which will advantageously be arranged after the installation of the prefabricated module 3 and before that of the adjacent prefabricated module.
- a connector 5 is attached to the beam 1, at the shoulder 8 of the prefabricated module 3 and at the shoulder 10 of the adjacent prefabricated module, and not only ensures the connection with beam 1, but also the mutual connection of the modules prefabricated 3.
- the connector 5 can, in a first variant be, prior to installation, independent of prefabricated modules 3.
- the connector 5 is then first fixed to the beam 1 by sealing with a binder in the blind hole provided for host it.
- we have the binder layer 6 on the surface upper 1a of beam 1 then we come to install the prefabricated module 3 on the binder layer 6, the shoulder 8 then having to be provided with a through hole intended to accommodate the part that remains free of the connector 12.
- the hole, not shown, is filled with the shoulder 8, there is a layer of binder on the shoulder 8 and the edges ends of the prefabricated module 3.
- we have the adjacent prefabricated module whose shoulder 10 is also provided with a through hole, not shown. This through hole receives the free end of connector 5 and is then filled of binder.
- FIG. 3 is illustrated a portion of a module edge prefab 3, seen from above.
- the represented edge of the module prefabricated 3 is provided with a plurality of merlons 13 and slots 14 rectangular intended to interlock with another module prefabricated, not shown, provided with the same type of edge teeth. This improves the transmission of shear forces between two prefabricated modules.
- FIG. 4 is illustrated another variant, in which the merlons 13 and slots 14 are rounded, the module prefabricated 15, next to the prefabricated module 3, having the same toothing.
- a binder 7 is, of course, disposed between the modules prefabricated 3 and 15.
- the toothing has a triangular shape.
- FIG. 6 and 7 we see a portion of stone vault 16 supported by a right foot 17 surmounted by a sideboard wall 18.
- the portion of arch 16 comprises an arch 19 formed of a succession of keys 20 juxtaposed whose separation planes pass through the axis of the vault 16.
- Each key 20 is put in compression between the keys neighbors and by said neighboring keyboards as well as by the burden of arch 16.
- the keyboards 20 are generally provided with seals in mortar ensuring maximum friction between the different keystones 20.
- the vault 16 also includes a delimited portion of the vault by arches and called "vault 21".
- the vault 21 is thick reduced compared to the arc 19 on which it rests.
- the lower surface 22 of the vault 16 is visible to the public, while the upper surface 23 does not is not, being covered with a floor or a roof.
- An element working 24 is carried out on the upper surface 23 of the vault 16 in line with the arc 19.
- the working element 24 is firmly secured to each key 20 by means of connectors 25.
- the working element 24 includes adjacent prefabricated modules 3 as described above, in relation to Figure 1.
- Installation of the working element 24 and connectors 25 is carried out as follows. We start by clearing the upper surface 23 in line with the arch 19 of any annoying element, such as a cracked coating or miscellaneous waste. From the upper surface 23, we dig into each key 20 at least one blind hole in which one comes to have a connector 25 which is sealed with a resin composition synthetic, for example epoxy.
- the depth of the blind hole and therefore the connector sealing length 25 are determined according to of the load to be borne by said connector 25. In the event of very heavy load important, several connectors 25 can be provided per key 20.
- the section of the working element 24 is calculated as a function compression constraints to be removed.
- the element working 24 can be of variable section in order to adapt to variations in constraints.
- the element working 24 reduces stresses to be supported by existing elements. Depending on the type and condition of degradation of the roof, we can choose to share the constraints of compression between the working element 24 and the arc 19.
- the layer 6 of synthetic mortar is then poured directly onto the keystones 20 to promote good adhesion between these elements.
- the working element 24 must take up all the constraints compression and support each key 20 of the arc 19.
- the separator 26 may be in the form of a membrane, for example of felt or polyane.
- the separator 26 is disposed between the working element 24 and each key 20 of the arc 19.
- a glass or laminate fabric forming a reinforcing web 27 which extends over part or all of the vault 21 with a view to his participation in the recovery of the constraints of compression.
- the reinforcing veil 27 can be produced by a succession of layers of glass fiber and resin canvas, including possibly honeycomb sandwich panels.
- stiffeners 28 disposed between part of the reinforcement veil 27 in front of the roof 21 and another part of the reinforcement web 27 in contact with the working element 24.
- the stiffeners 28 can be arranged at regular intervals, for example on the cob with a predetermined angle relative to the element working 24 and can be made of any inert material capable to withstand the tensile stresses, for example in fibers aramids.
- FIG. 9 Another type of vault is illustrated in Figure 9.
- This vault 16 is provided with a circular lower surface 22 and an upper surface 23 plan.
- the arch 16 is therefore of variable thickness, smaller at center and stronger at the edges.
- these blind holes of variable depth we just arrange and seal connectors 25 of suitable length to project beyond the upper surface 23, then just layer 6 of synthetic mortar.
- the prefabricated modules 3 which will be provided with suitable through holes at the inclination of the connectors 25. If necessary, provision may be made for the through holes with a diameter much larger than that of connectors 25 in order to facilitate the installation of the prefabricated modules 3.
- FIG 10 we see a masonry element of shape straight working in compression and comprising a plurality of keypads 29 in the form of a bevel in order to ensure their mutual wedging and an operation similar to that of a vault.
- Each key 29 is drilled with one or more blind holes in which is arranged and sealed a connector 25 projecting above the keyway 29.
- a working element 24 is installed by grouting a layer of mortar synthetic 6 above said keyboards 29, installation of modules prefabricated 3 on layer 6, the free ends of the connectors 25 projecting through through holes provided for this purpose in the prefabricated modules 3, sealing of said free ends of connectors 25, filling of spaces between modules prefabricated 3 with a binder 7, then covering the surface top of the prefabricated module 3 with a layer of mortar synthetic.
- the invention is perfectly suited to any structure whose bottom surface must be protected, both during the work of reinforcement only at the end of these.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Road Paving Structures (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
- on ajoute au moins sur une face supérieure dudit élément de construction une pluralité de modules préfabriqués de renforcement,
- on dispose des connecteurs entre lesdits modules préfabriqués et ledit élément de construction, et
- on dispose un liant entre lesdits modules préfabriqués et ledit élément de construction.
- la figure 1 est une vue en coupe longitudinale d'une poutre renforcée selon un mode de réalisation de l'invention;
- la figure 2 est une vue de détail d'une variante de la figure 1;
- les figures 3 à 5 sont des vues de détail de modules préfabriqués selon différents aspects de l'invention; et
- les figures 6 à 10 sont des vues en coupe transversale de voûtes renforcées selon un aspect de l'invention.
Claims (20)
- Procédé de renforcement d'un élément de construction disposé entre au moins deux appuis et travaillant en flexion ou en compression, dans lequel on ajoute au moins sur une face supérieure dudit élément de construction une pluralité de modules préfabriqués de renforcement, on dispose des connecteurs entre lesdits modules préfabriqués et ledit élément de construction, et on dispose un liant entre lesdits modules préfabriqués et ledit élément de construction.
- Procédé selon la revendication 1, dans lequel les connecteurs sont fixés dans les modules préfabriqués avant l'ajout des modules préfabriqués sur l'élément de construction.
- Procédé selon la revendication 2, dans lequel les connecteurs sont fixés dans les modules préfabriqués lors de la préfabrication desdits modules.
- Procédé selon la revendication 1, dans lequel les connecteurs sont fixés dans l'élément de construction avant l'ajout des modules préfabriqués sur l'élément de construction.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel on étale une couche de liant sur la face supérieure dudit élément de construction avant l'ajout des modules préfabriqués sur l'élément de construction.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel on étale du liant entre les modules préfabriqués.
- Procédé selon l'une quelconque des revendications 1 à 4, dans lequel on dispose du liant entre l'élément de construction et les modules préfabriqués après l'ajout des modules préfabriqués sur l'élément de construction.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel l'élément de construction est une poutre.
- Procédé selon l'une quelconque des revendications 1 à 7, dans lequel l'élément de construction est une voûte.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel les modules préfabriqués comprennent du béton.
- Procédé selon la revendication 11, dans lequel les modules préfabriqués comprennent du béton de fibres.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel les connecteurs sont des tiges à base de fibres de verre ou de carbone.
- Procédé selon l'une quelconque des revendications 1 à 11, dans lequel les connecteurs comprennent de l'acier à haute résistance.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel le liant comprend un mortier de résine.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel un connecteur est commun à au moins deux modules préfabriqués.
- Procédé selon la revendication 15, dans lequel deux modules préfabriqués se recouvrent partiellement.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel au moins deux modules préfabriqués possèdent des bords pourvus de dents.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel au moins un module préfabriqué possède une surface inférieure comprenant des aspérités et/ou des concavités.
- Procédé selon l'une quelconque des revendications précédentes, dans lequel les modules préfabriqués sont disposés en une couche.
- Elément de construction (1) disposé entre au moins deux appuis et travaillant en flexion ou en compression, caractérisé par le fait qu'il comprend un renforcement disposé sur une face supérieure (1a) dudit élément de construction et pourvu d'une pluralité de modules préfabriqués (3) de renforcement, de connecteurs (4, 5) reliant lesdits modules préfabriqués (3) et ledit élément de construction, et d'un liant (6) disposé entre lesdits modules préfabriqués et ledit élément de construction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0302495A FR2851781B1 (fr) | 2003-02-28 | 2003-02-28 | Procede de renforcement d'un element de construction et element de construction |
FR0302495 | 2003-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1452670A1 true EP1452670A1 (fr) | 2004-09-01 |
EP1452670B1 EP1452670B1 (fr) | 2009-12-02 |
Family
ID=32749755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04290351A Expired - Lifetime EP1452670B1 (fr) | 2003-02-28 | 2004-02-11 | Procédé de renforcement d'un élément de construction et élément de construction |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1452670B1 (fr) |
AT (1) | ATE450679T1 (fr) |
DE (1) | DE602004024347D1 (fr) |
ES (1) | ES2339769T3 (fr) |
FR (1) | FR2851781B1 (fr) |
PT (1) | PT1452670E (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100266349A1 (en) * | 2009-02-27 | 2010-10-21 | Jennmar Corporation | Impact Resistant Lagging, Method For Designing Impact Resistant Lagging, and Apparatus for Testing Impact Resistant Lagging |
FR3012496A1 (fr) * | 2013-10-30 | 2015-05-01 | Lefevre M | Procede de renforcement d'un element de construction par assemblage de modules de renfort et d'au moins un element de terminaison |
CZ305270B6 (cs) * | 2014-03-27 | 2015-07-08 | Vysoké Učení Technické V Brně | Konstrukce statického zajištění obloukové klenby pomocí prostorově uspořádané předpínací výztuže |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2296276A (en) * | 1994-12-16 | 1996-06-26 | Sho Bond Corp | Method for strengthening a concrete deck |
FR2792354A1 (fr) * | 1999-04-16 | 2000-10-20 | Lefevre Sa M | Structure de maconnerie et procede de renforcement associe |
FR2817575A1 (fr) * | 2000-12-05 | 2002-06-07 | Lefevre Sa M | Structure de maconnerie et procede de renforcement associe |
-
2003
- 2003-02-28 FR FR0302495A patent/FR2851781B1/fr not_active Expired - Fee Related
-
2004
- 2004-02-11 PT PT04290351T patent/PT1452670E/pt unknown
- 2004-02-11 ES ES04290351T patent/ES2339769T3/es not_active Expired - Lifetime
- 2004-02-11 EP EP04290351A patent/EP1452670B1/fr not_active Expired - Lifetime
- 2004-02-11 AT AT04290351T patent/ATE450679T1/de not_active IP Right Cessation
- 2004-02-11 DE DE602004024347T patent/DE602004024347D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2296276A (en) * | 1994-12-16 | 1996-06-26 | Sho Bond Corp | Method for strengthening a concrete deck |
FR2792354A1 (fr) * | 1999-04-16 | 2000-10-20 | Lefevre Sa M | Structure de maconnerie et procede de renforcement associe |
FR2817575A1 (fr) * | 2000-12-05 | 2002-06-07 | Lefevre Sa M | Structure de maconnerie et procede de renforcement associe |
Non-Patent Citations (2)
Title |
---|
DELBECQ ET AL: "Calcul, désordres, réparation et modernisation des ponts en maçonnerie", TRAVAUX, EDITIONS SCIENCE ET INDUSTRIE S.A. PARIS, FR, NR. 561, PAGE(S) 63-74, ISSN: 0041-1906, XP002123401 * |
RUFFERT G: "DIEKONSTRUKTIVE SANIERUNG VON BAUDENKMALERN", BAUTECHNIK, ERNST & SOHN VERLAG. BERLIN, DE, VOL. 71, NR. 7, PAGE(S) 382-389, XP000195309 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100266349A1 (en) * | 2009-02-27 | 2010-10-21 | Jennmar Corporation | Impact Resistant Lagging, Method For Designing Impact Resistant Lagging, and Apparatus for Testing Impact Resistant Lagging |
US9249663B2 (en) * | 2009-02-27 | 2016-02-02 | Fci Holdings Delaware, Inc. | Impact resistant lagging, method for designing impact resistant lagging, and apparatus for testing impact resistant lagging |
FR3012496A1 (fr) * | 2013-10-30 | 2015-05-01 | Lefevre M | Procede de renforcement d'un element de construction par assemblage de modules de renfort et d'au moins un element de terminaison |
EP2868828A1 (fr) * | 2013-10-30 | 2015-05-06 | M Lefevre | Procédé de renforcement d'un élément de construction par assemblage de modules de renfort et d'au moins un élément de terminaison |
CZ305270B6 (cs) * | 2014-03-27 | 2015-07-08 | Vysoké Učení Technické V Brně | Konstrukce statického zajištění obloukové klenby pomocí prostorově uspořádané předpínací výztuže |
Also Published As
Publication number | Publication date |
---|---|
PT1452670E (pt) | 2010-03-01 |
FR2851781B1 (fr) | 2006-04-14 |
ES2339769T3 (es) | 2010-05-25 |
ATE450679T1 (de) | 2009-12-15 |
DE602004024347D1 (de) | 2010-01-14 |
FR2851781A1 (fr) | 2004-09-03 |
EP1452670B1 (fr) | 2009-12-02 |
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