EP1495189A1 - Joint de construction - Google Patents
Joint de constructionInfo
- Publication number
- EP1495189A1 EP1495189A1 EP03727607A EP03727607A EP1495189A1 EP 1495189 A1 EP1495189 A1 EP 1495189A1 EP 03727607 A EP03727607 A EP 03727607A EP 03727607 A EP03727607 A EP 03727607A EP 1495189 A1 EP1495189 A1 EP 1495189A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- joint according
- joint
- construction elements
- deformable portion
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000012815 thermoplastic material Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 9
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
Definitions
- the present invention relates to the joints used to connect building elements capable of moving relative to each other and of supporting external loads.
- a typical, although not exclusive, example of such joints concerns pavement joints.
- a pavement joint has the role of ensuring the continuity of the running surface, by filling the void or gap that can separate the civil engineering elements on which the pavement is built and by allowing a relative movement between the elements, due to dynamic loads and / or thermal deformations.
- Pavement joints must also collect these liquids to avoid their accumulation at least on the passable part of the pavement.
- road joints must have good abrasion resistance caused by the repeated passage of vehicles on the road. They must have a significant resistance to ozone because they are constantly outside and therefore in contact with the surrounding gases, as well as a good resistance to radiation in particular ultraviolet. They must offer sufficient mechanical resistance to support the operating loads, that is to say the weight of the vehicles as well as the dynamic forces which result from their movement. They must still offer stable characteristics as a function of the temperature in the usual range of outdoor temperatures (typically from -30 to +40 degrees Celsius). Finally, pavement joints must have the lowest possible implementation cost, in a very competitive market.
- seals are used, the deformable part of which is made of elastomer, in particular rubber.
- seals having a bellows made of elastomer which is engaged on either side of the hiatus in two aluminum profiles, each resting on an element of civil engineering structure supporting the roadway (see for example FR-A-2 758 348). In this case, the bellows is suspended above the hiatus, without direct contact with the elements.
- the aluminum profiles are fixed to the structural elements by means of screws and plugs, for example. Protective steel plates screwed onto the fixing profiles can cover the bellows.
- Another known seal is a prefabricated elastomer seal encasing cast iron inserts.
- the inserts are thus protected against corrosion by the elastomeric material which coats them.
- this coating is quite complicated to produce industrially.
- Such a seal further comprises a thinned portion of elastomer integral with the coating of the inserts and suspended above the hiatus. This fine portion can for example be in the form of a concave bellows.
- the joint is fixed to the construction elements by means of screws passing through the metal inserts. This type of joint is generally molded over lengths of the order of one meter.
- An object of the present invention is to provide construction joints, in particular pavement joints, which are of low manufacturing cost and very easy to install.
- the invention thus provides a construction joint to be interposed between two adjacent construction elements, comprising a one-piece profile of thermoplastic material having two bearing portions on the two construction elements, respectively, arranged to support external loads exerted occasionally on the construction elements, and a deformable portion extending between the two support portions to allow relative movement between the two construction elements.
- Various thermoplastic materials respond well to various requirements imposed by the functions of construction joints, in particular in terms of elasticity, sealing and resistance to operating loads.
- the realization of the joint consisting essentially of a one-piece profile, allows it to have a low manufacturing cost.
- the seal is also very simple to apply, which represents an important advantage.
- the profile may have a length equal to the width of the construction elements, for example the width of the roadway. It can also be shorter, to facilitate its transport, several sections being welded end to end on the site. Welding is facilitated by the use of a thermoplastic material.
- Each support portion of the profile has an upper face intended to extend in continuity with a rolling surface of the construction elements; this upper face of each support portion has a longitudinal groove, the seal further comprising rigid retaining bars, preferably metallic (in particular aluminum or stainless steel), placed in the grooves of the support portions, and fixing members for anchoring the bars and the support portions to the construction elements;
- the holding bars can have oblong holes to receive the fastening members
- Each support portion of the profile receives a retaining bar extending over substantially the entire length of the joint; - As a variant, each bearing portion of the profile receives several successive holding bars over the length of the joint;
- thermoplastic material of the profile comprises a polyolefin such as a high density polyethylene or polypropylene;
- the profile is extruded;
- the deformable portion of the profile forms at least one channel for collecting runoff liquids on the surface of the construction elements;
- the deformable portion of the profile has a form of concave bellows; - The deformable portion of the profile has a thickness substantially smaller than the support portions, preferably less than 10 millimeters.
- the deformable portion of the profile has a form of bi-convex bellows.
- Each support portion of the one-piece profile has at least one longitudinal recess.
- FIG. 1 is a cross section of a pavement joint according to the invention.
- FIGS. 3 to 5 are cross sections of alternative embodiments of the one-piece profile of the joint according to the invention.
- Figure 1 shows an embodiment of the invention. It shows a pavement joint 1 placed astride two adjacent construction elements 5 consisting for example of concrete slabs or segments of bridge deck. A pavement 6 is arranged on the upper surface of the construction elements 5. The elements 5 being distinct, the pavement 6 would have a discontinuity in the absence of the pavement joint 1. The pavement joint 1 ensures continuity of the pavement by connecting building elements 5.
- the edges of the elements 5 receiving the joint 1 are liable to undergo movements relative to each other, in particular when vehicles are traveling on the roadway 6 or because of the thermal expansions of the elements.
- the road joint 1 absorbs any deformations resulting from such movements.
- the floor joint shown in Figure 1 consists essentially of a one-piece profile 1 made of a thermoplastic material.
- Thermoplastics are an important class of synthetic materials. They are derived from linear or slightly branched polymers. One of the characteristics of thermoplastic materials is that they soften under the action of heat and solidify by cooling taking on a new form, which allows easy welding by local heating.
- Thermoplastics also generally have properties which make them particularly suitable for meeting the requirements of a road joint, as described above. In particular, they have sufficient elasticity to allow significant deformation, as well as sealing against liquids, and good mechanical resistance to support operating loads such as the support of the weight of vehicles and the dynamic effects that their movements generate.
- a pavement joint thus arranged on building elements allows the support of the operating loads imposed on the pavement 6 by vehicles which pass or park on the joint, and absorbs without great risk of breaking the movements of the elements 5 one compared to each other.
- the thermoplastic material used for the profile 1 of the road joint is a polyolefin.
- Polyolefins are made up of polymers and copolymers of ethylene, propylene and heavier ethylene hydrocarbons. They also have many of the features required for a pavement joint.
- Profile 1 can thus be made of high density polyethylene (HDPE) or even polypropylene (PP). It can also be made of any other thermoplastic material, or a combination of polyolefin type materials.
- thermoplastic profile can be extruded according to a conventional method. This profile can be produced so that its length covers the entire width of a road (of the order of 7 meters for a road with two lanes). It is also possible to produce a profile with a length less than the width of the roadway. In this case, a splicing of several sections in succession in the longitudinal direction so as to cover the entire width of the roadway. These sections will be fixed together by gluing or preferably by welding. It should be noted that the characteristics of thermoplastic materials such as HDPE give the possibility of carrying out an easy welding between two profiles in this same material, by heating their ends before putting them end to end.
- the production of a profile with a length less than the width of the road has the advantage of having a profile of limited length, easier to transport and also usable for roads of different widths.
- the one-piece profile 1 has two support portions 2. These support portions rest directly on the construction elements 5 and are in contact on their sides with the roadway 6 as shown in FIG. 1. These support portions 2, whose upper face 8 extends in continuity with the rolling surface of the roadway 6, are subjected to the loads received by this roadway.
- the thermoplastic material gives them resistance to these loads, such as the weight of vehicles traveling on the road or the dynamic forces that these vehicles generate.
- the bearing portions 2 have longitudinal recesses 12, 13 such as those shown in Figures 3 and 4. These recesses allow to limit the amount of thermoplastic material in the joint and therefore their cost. They also make it possible to reduce the cooling times of the thermoplastic material after extrusion of the profile.
- Figure 1 also shows a finer portion 3 of the section 1 of the road joint. This makes the junction between the two support portions 2. Because of its thinned shape, and of the thermoplastic material which composes it, this thinner portion 3 has good deformability when relative movements occur between the elements 5 The elasticity properties of the aforementioned thermoplastics also allow this deformation.
- the thin portion 3 of the road joint 1 has a thickness of less than 10 mm.
- the fine portion 3 is in the form of a concave bellows.
- This configuration is advantageous insofar as the fine portion 3 is set back relative to the roadway 6 which prevents it from being too directly in contact with vehicles traveling on the roadway, and therefore, from undergoing excessive abrasion.
- a concave structure forms a channel making it possible to collect liquid spreading on the roadway 6 such as, for example, runoff water which can carry with them oils or deicing salts, to which the thermoplastic material is also resistant. This channel drains the water towards the shoulder of the road.
- the fine portion 3 is in the form of a bi-convex bellows, which improves its robustness and makes it possible to form a double sealing barrier.
- thermoplastic profile 1 shown in the drawings further comprises longitudinal grooves 7 formed on the upper face 8 of each of the two support portions 2. These grooves can extend over the entire length of the profile 1. Advantageously, they are obtained by the shape of the extrusion die of the profile 1.
- the grooves 7 are intended to receive retaining bars 4 which fit there over their entire length.
- FIG 2 gives a schematic perspective representation of the road joint of Figure 1.
- the holding bars 4 have been placed in the grooves 7 on each of the support portions 2 of the thermoplastic profile 1.
- Their external profile is adapted to the shape of the grooves 7.
- These retaining bars 4 are aligned with the profile, and their upper face is flush with the upper face 8 of the support portions 2, that is to say the rolling surface of the roadway 6.
- the holding bars 4 are preferably metallic, in particular aluminum or stainless steel. They can extend in one piece over the entire length of the joint. It is also possible to have several successive bars along the length of the joint.
- the role of the bars 4 is to keep the thermoplastic profile in contact with the elements 5 supporting the roadway 6. They have holes 9 distributed over their length, through which fastening members such as screws 10 are passed. pass through the bar 4 and the support portion 2 of the profile to anchor them on the sub-construction element Underlying. As shown in Figure 2 these holes 9 are advantageously oblong, which gives a certain latitude on the position of the fastening members 10 along the profile, in the case where it would be against concrete reinforcing bars when drilling element 5 to set up the anchor pins.
- the holding bars 4 prevent the support portions 2 of the profile from tending to undulate between the fixing screws 10.
- the structure of the road joint as well as the materials used for the profile 1 and for the fixing bars 4, give the possibility of firmly tightening the profile 1 between the fixing bars 4 and the elements 5, using conventional fasteners. , which can be pre-stressed to avoid loosening under the effect of vibrations.
- a conventional mechanism of Belleville spring or washer type can be used.
- the holding bars 4 and their fixing mechanism, through the thermoplastic profile, in the structural work elements 5, also make it possible to avoid deformation of the thermoplastic material of the profile 1, which could otherwise appear in the event of dilation for example.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Finger-Pressure Massage (AREA)
- Cold Cathode And The Manufacture (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Sampling And Sample Adjustment (AREA)
- External Artificial Organs (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0204639 | 2002-04-12 | ||
| FR0204639A FR2838465B1 (fr) | 2002-04-12 | 2002-04-12 | Joint de construction |
| PCT/FR2003/000910 WO2003087479A1 (fr) | 2002-04-12 | 2003-03-21 | Joint de construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1495189A1 true EP1495189A1 (fr) | 2005-01-12 |
| EP1495189B1 EP1495189B1 (fr) | 2009-06-24 |
Family
ID=28459807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03727607A Expired - Lifetime EP1495189B1 (fr) | 2002-04-12 | 2003-03-21 | Joint de construction |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1495189B1 (fr) |
| JP (1) | JP4121965B2 (fr) |
| KR (1) | KR100962703B1 (fr) |
| AT (1) | ATE434686T1 (fr) |
| AU (1) | AU2003233847B2 (fr) |
| DE (1) | DE60328091D1 (fr) |
| DK (1) | DK1495189T5 (fr) |
| ES (1) | ES2328918T3 (fr) |
| FR (1) | FR2838465B1 (fr) |
| PT (1) | PT1495189E (fr) |
| WO (1) | WO2003087479A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050066600A1 (en) * | 2003-09-25 | 2005-03-31 | Paul Moulton | Expansion joint system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3508010C3 (de) * | 1985-03-06 | 1993-11-18 | Maurer Friedrich Soehne | Anordnung zur Überbrückung einer Dehnungsfuge in einer Fahrbahn |
| CA2015289C (fr) * | 1990-04-24 | 1995-02-14 | Konrad Baerveldt | Joint de dilatation elastomere thermoplastique extrude |
| CA2091948C (fr) * | 1993-03-18 | 1996-04-09 | Konrad Baerveldt | Element de retenue d'un cordon d'etancheite |
-
2002
- 2002-04-12 FR FR0204639A patent/FR2838465B1/fr not_active Expired - Fee Related
-
2003
- 2003-03-21 DK DK03727607.8T patent/DK1495189T5/da active
- 2003-03-21 EP EP03727607A patent/EP1495189B1/fr not_active Expired - Lifetime
- 2003-03-21 ES ES03727607T patent/ES2328918T3/es not_active Expired - Lifetime
- 2003-03-21 WO PCT/FR2003/000910 patent/WO2003087479A1/fr not_active Ceased
- 2003-03-21 AU AU2003233847A patent/AU2003233847B2/en not_active Ceased
- 2003-03-21 KR KR1020047002253A patent/KR100962703B1/ko not_active Expired - Fee Related
- 2003-03-21 AT AT03727607T patent/ATE434686T1/de not_active IP Right Cessation
- 2003-03-21 JP JP2003584407A patent/JP4121965B2/ja not_active Expired - Fee Related
- 2003-03-21 DE DE60328091T patent/DE60328091D1/de not_active Expired - Fee Related
- 2003-03-21 PT PT03727607T patent/PT1495189E/pt unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03087479A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003087479A1 (fr) | 2003-10-23 |
| FR2838465A1 (fr) | 2003-10-17 |
| ATE434686T1 (de) | 2009-07-15 |
| PT1495189E (pt) | 2009-09-23 |
| JP2005522604A (ja) | 2005-07-28 |
| KR100962703B1 (ko) | 2010-06-11 |
| AU2003233847A1 (en) | 2003-10-27 |
| EP1495189B1 (fr) | 2009-06-24 |
| KR20040101989A (ko) | 2004-12-03 |
| DE60328091D1 (de) | 2009-08-06 |
| JP4121965B2 (ja) | 2008-07-23 |
| DK1495189T5 (da) | 2014-02-03 |
| ES2328918T3 (es) | 2009-11-19 |
| DK1495189T3 (da) | 2009-11-02 |
| FR2838465B1 (fr) | 2004-10-01 |
| AU2003233847B2 (en) | 2008-10-30 |
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