EP1516963A1 - Joint de dilatation et élément déformable élastiquement à être utilisé dans un joint de dilatation - Google Patents

Joint de dilatation et élément déformable élastiquement à être utilisé dans un joint de dilatation Download PDF

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Publication number
EP1516963A1
EP1516963A1 EP03388063A EP03388063A EP1516963A1 EP 1516963 A1 EP1516963 A1 EP 1516963A1 EP 03388063 A EP03388063 A EP 03388063A EP 03388063 A EP03388063 A EP 03388063A EP 1516963 A1 EP1516963 A1 EP 1516963A1
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EP
European Patent Office
Prior art keywords
elastically yielding
expansion joint
members
elongated
slabs
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Withdrawn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
EP03388063A
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German (de)
English (en)
Inventor
Michel Lelong
Alain Blotiere
Alain Remoulif
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.)
Siplast-Icopal
Original Assignee
Siplast-Icopal
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 Siplast-Icopal filed Critical Siplast-Icopal
Priority to EP03388063A priority Critical patent/EP1516963A1/fr
Publication of EP1516963A1 publication Critical patent/EP1516963A1/fr
Withdrawn legal-status Critical Current

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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 is related to an expansion joint for installation across the gap between adjacent concrete slabs in a civil engineering structure, such as a car parking building, the expansion joint including i) an elongated rigid bridging member for spanning the gap and ii) elongated members that yield elastically in response to dimensional changes of the slabs and that adjoin the bridging member, the elastically yielding members being supported by a respective concrete slab.
  • the invention is also related to an elastically yielding member for use in an expansion joint.
  • US 5 791 111 discloses a sealing device involving the use of a preformed block-shaped elastically yielding member for spanning the gap between two adjoining concrete slabs in a building structure.
  • This solution is disadvantageous in that the elastically yielding member is unsupported in the area of the gap, the weight of a travelling vehicle generating high internal tensile stresses within the elastically yielding member, adding to the internal stresses arising from the dimensional changes of the concrete slabs.
  • an expansion joint typically used for car-park decks is already known, the bridging member being a narrow concrete plate.
  • An elastically yielding sealant is arranged in the groove between the concrete plate and an adjoining layer of a bituminous material placed on the upper surface of each concrete slab.
  • the elastically yielding members are preformed blocks that include connection means for the connecting the elastically yielding members to the bridging member as well as to the respective concrete slab.
  • the elastically yielding members may be directly or indirectly connected to the concrete slabs.
  • the expansion joint includes supporting plates upon which the yielding members rest and which are connected to a respective concrete slab, the yielding members being connected to the respective supporting plate by the connection means, an indirect connection between the elastically yielding members and the respective concrete slab thereby being established.
  • each elastically yielding member has opposed elongated side strips that form sides of the elastically yielding member and that are integrally connected by a central part of said elastically yielding member, the connection to the bridging member and the concrete slab being in the side strips and the side strips being more rigid than the central part whereby dimensional changes of the slabs mainly result in dimensional changes of the central part.
  • the central part has a plurality of recesses formed in the surface thereof in accordance with a particular pattern.
  • Walls extending perpendicularly to the upper and/or lower surface of the central part separate the recesses and transfer vertical loads from vehicles travelling on the central part to the underlying concrete slab.
  • the elastically yielding members are provided with grooves receiving projecting parts mounted on the bridging member for providing for an easy assembly of the expansion joint without the need for specialized tools.
  • Fig. 1 shows a section through the area between two adjacent concrete slabs 2, 2' which may be structural parts of a building, such as a parking facility, of a road or of any other civil engineering construction.
  • the concrete slabs 2, 2' are each covered on the top surface 4, 4' by a layer 5, 5' of a bituminous material, or any similar material suitable as a weather protection and preferably having the properties normally required for a road pavement.
  • the concrete slabs 2, 2' are placed with their front sides 3, 3' facing each other with an intermediate gap allowing for an expansion of the concrete slabs 2, 2' caused by increases in the ambient temperature.
  • an expansion joint according to the invention identified generally by the reference numeral 10 is connected to each concrete slab 2, 2' at the aforementioned gap.
  • the expansion joint 10 is secured to the concrete slabs 2, 2' by means of appropriate fastening devices, such as screws or nails 12, 12', and the layer 5, 5' forming the weather protection, and, as the case may be, the road pavement, lies against the sides of the expansion joint 10.
  • the expansion joint 10 is elongated in the sense that it has a major extension out of the plane of fig. 1, preferably an extension which corresponds to the extension out of the plane of fig. 1 of the front sides 3, 3' of the slabs 2, 2', i.e. normally in the lengthwise direction of the concrete slabs 2, 2'.
  • Fig. 2 shows the expansion joint 10 of fig. 1 in further details.
  • the drawing shows a preferred installation of the expansion joint 10 wherein a soft elastomeric cord 7 and a water-tight membrane 8 has been placed on the top surface 4, 4' of the concrete slabs 2, 2' before placing the expansion joint 10.
  • the expansion joint 10 is formed from five elongated elements 15, 25, 25', 35, 35', namely two preformed block-shaped elastically yielding members 35, 35' that are each anchored on a supporting plate 25, 25' connected to a respective concrete slab 2, 2'.
  • elastically yielding as used herein is generally meant an element that will yield in the direction indicated by the arrows A, A' in fig.
  • the term "elastic” as used herein refers to the ability of an element to return to the same or essentially the same position upon a load being released.
  • the elastically yielding members 35, 35' should be capable of supporting traffic rolling across the expansion join 10 and should be dimensionally stable to at least a certain extend with regard to vertical loads irrespective of the ambient temperature. It is preferred that the block-shaped elastically yielding members 35, 35' are made from an elastomeric material, preferably rubber and most preferred black vulcanized rubber, in a moulding operation.
  • a rigid bridging member 15 which bridges the gap between the concrete slabs 2, 2'.
  • the bridging member 15 and the supporting plates 25, 25' may be made by extrusion of metal or by pultrusion of a fibre reinforced synthetic material while the elastically yielding members 35, 35' may be made from any conventional elastomeric material. It will be understood that expansion and contraction of the slabs 2, 2' leads to a change in the distance between the area where each elastically yielding members 35, 35' is secured to the supporting plate 25, 25' and the bridging member 15.
  • bridging member 15 By the term “rigid” as used herein with respect to the bridging member 15 is meant that this element will yield less in the direction indicated by the arrows A, A' in fig. 1 than the elastically yielding members 35, 35' when the expansion joint 10 is subjected to forces in that direction, such as when the slabs 2, 2' expand or contract due to temperature variations.
  • a bridging member 15 manufactured by pultrusion of a fibre reinforced synthetic material provides highly dimensionally stable qualities.
  • the bridging member 15 must also be capable of transmitting the vertical loads of vehicles travelling thereon to the slabs 2, 2' via the elastically yielding members 35, 35', and is dimensioned, such as by the use of reinforcements, to limit downward deflections in the area above the gap between the concrete slabs 2, 2' where the bridging member 15 is unsupported.
  • the elastically yielding members 35, 35' are secured to a respective slab 2, 2' via a supporting plate 25, 25', this connection being near the side 80, 80' of the elastically yielding members remote from the bridging member 15.
  • the upper surface of the supporting plates 25, 25' supporting the elastically yielding members 35, 35' preferably provide a low frictional resistance against relative movements of the elastically yielding members 35, 35' with respect to the supporting plates 25, 25' whereby resistance to dimensional changes of the elastically yielding members 35, 35' in direction A, A' mainly arises from the compressive or tensile forces generated within the elastically yielding members 35, 35'.
  • the elastically yielding members 35, 35' each have a series of elongated recesses or grooves 38, 38', 40, 40' allowing for the elastically yielding members 35, 35' to be secured to the bridging member 15 and to the concrete slab 2, 2' above which the respective elastically yielding member 35, 35' is located.
  • the elastically yielding members 35, 35' are secured directly to the bridging member 15 and to the respective supporting plate 25, 25' in the sense that no separate fastening means are used.
  • the bridging member 15 as well as the supporting plates 25, 25' may be integrally formed with elongated projecting engaging elements 17, 29, 29' receivable by said recesses or grooves 38, 38', 40, 40'.
  • the elastically yielding members 35, 35' would be supported directly by the concrete material of the slabs 2, 2' or by a membrane 8
  • corresponding engaging members 29, 29' receivable by the grooves 40, 40' may be secured directly to the concrete slabs 2, 2'.
  • the elastically yielding members 35, 35' are preferably formed as a single body including elongated side strips 36, 36', 37, 37' integrally formed with a central part 39, 39' having a structure comprising a series of elongated recesses 42, 42', 46, 46' extending from the upper surface to a depth defined by respective surfaces of ribs 50, 50', 51, 51' that also define the extension from the lower surface of the central part 39 of further recesses 52, 52', 56, 56'.
  • the recesses 42, 42', 46, 46', 52, 52', 56, 56' are preferably parallel, and run at an angle ⁇ of 25°-55°, preferably about 30°, with respect to the longitudinal extension of the elastically yielding members 35, 35', i.e. with respect to the extension of the parallel sides 80, 80', 82, 82' of the elastically yielding members 35, 35'.
  • the recesses 42, 42', 46, 46', 52, 52', 56, 56' in the elastically yielding members provide the expansion joint 10 with an overall dart-like appearance when seen from above in the sense that the recesses on the two sides of the bridging member 15 point towards the same end of the bridging member 15, i.e. the recesses on formed in member 35 preferably do not run parallel with the recesses in member 35', although the same angle ⁇ is preferably selected.
  • the ribs 50, 50', 51, 51' that are preferably horizontal, together with the vertical walls 44 that separate the recesses 42, 42', 46, 46', 52, 52', 56, 56' connect the strips 36, 36', 37, 37' with one another.
  • this structure i.e. the arrangement and dimensions of the ribs 50, 50', 51, 51', is a factor in obtaining the desired elastic properties of the elastically yielding members 35, 35' with respect to a compression in direction A, A' marked on fig. 1, the main dimensional changes occurring in the central part 39, 39'.
  • Fig. 4b shows the elongated bridging member 15 in more details.
  • this member has the shape of an inverted U with a web 16 and opposed flanges 17.
  • the flanges 17 are dimensioned to be receivable by the elongated groove 38, 38' in a respective elastically yielding member 35, 35' with a certain clamping force being applied on the flanges 17 due to the grooves 38, 38' preferably being of a smaller width than the flanges 17.
  • an adhesive 120, 120' may be applied in the grooves 38, 38' (see fig. 2).
  • the bridging member 15 may be formed with anti-skid surface areas 18 on the upper surface of the web 16, allowing for a safe passage of vehicles and pedestrians.
  • Fig. 5 shows one of the supporting plates 25, 25' in greater details, illustrating that these plates are preferably formed integrally with two projecting ribs 27, 27', 29, 29' of which one ribs 29, 29' serves as an engaging element receivable in the aforementioned groove 40, 40' in the elastically yielding members 35, 35'.
  • the supporting plates 25, 25' include two surface areas 31, 31', 32, 32' of which at least the one surface area 31, 31' supporting the central part 39, 39' of the elastically yielding members 35, 35' is smooth to provide a low frictional resistance as has been mentioned.
  • the other surface area 32, 32' is provided with a series of through-going apertures 26, 26' receiving screws or nails 12, 12' for securing the supporting plates 25, 25' to the concrete slabs 2, 2', preferably with a washer 13, 13' being applied for water tightness.
  • the location of the through-going apertures 26, 26' with respect to the front edge 126, 126' of the supporting plates 25, 25' is selected to ensure that the supporting plates 25, 25' may be connected to the respective concrete slab in an area where the latter has a low number of reinforcing bars, ie. at some distance from the front side 3, 3'.
  • the two projecting ribs 27, 27', 29, 29' define there-between an elongated groove 30, 30' for securing the elastically yielding members 35, 35'.
  • the groove 40, 40' in the elastically yielding members 35, 35' at a distance from the side 80, 80' corresponding to about the width of the elongated groove 30, 30', a clamping force maintaining the elastically yielding members 35, 35' in place on the supporting plates 25, 25' may be generated.
  • the groove 30 may have a smaller width I at the mouthing as compared with the width L at the groove bottom 11.
  • the layer 5, 5' forming the weather protection and in the relevant case also the road pavement preferably lies directly against the sides 80, 80' of the expansion joint 10.
  • a sealant may be applied in this area, no significant strains potentially damaging the sealant arising from a contraction of the slabs 2, 2' since the expansion joint 10 is immovably connected to the slabs by the fastening devices 12, 12'.
  • the invention involves the further advantage that, after installation of the supporting plates 25, 25', the elastically yielding members 35, 35' and the bridging member 15 may be installed without the need for complicated tools by means of the engaging projections 17, 29, 29' formed on the bridging member 15 and the supporting plates 25, 25', respectively.
  • the expansion joint 10 may easily be disassembled partially since no mechanical fasteners, other than the screws 12, 12', are used.
  • the aforementioned adhesive 120, 120' this should preferably be applied so as to keep the bridging member 15 in position in normal daily use while still permitting removal of the bridging member 15 without any significant effort.
  • the various parts of the expansion joint may be manufactured in lengths as appropriate, eg. in 1 meter lengths.
  • the supporting plates 25, 25' although having been described as being screwed to the concrete slabs 2, 2' may alternatively be secured by use of any appropriate adhesive.
  • the elastically yielding members 35, 35' may be connected to the supporting plates 25, 25', or to the concrete slabs 2, 2' as the case may be, by applying an adhesive along the lower surface of the side strips 37, 37', although this solution is presently not being preferred.
  • the expansion joint 10 according to the invention may be used with or without any water-tight membrane 8 being applied on the concrete slabs 2, 2'.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
EP03388063A 2003-09-19 2003-09-19 Joint de dilatation et élément déformable élastiquement à être utilisé dans un joint de dilatation Withdrawn EP1516963A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03388063A EP1516963A1 (fr) 2003-09-19 2003-09-19 Joint de dilatation et élément déformable élastiquement à être utilisé dans un joint de dilatation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03388063A EP1516963A1 (fr) 2003-09-19 2003-09-19 Joint de dilatation et élément déformable élastiquement à être utilisé dans un joint de dilatation

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104562928A (zh) * 2015-01-22 2015-04-29 宁波路宝科技实业集团有限公司 一种防陷型桥梁伸缩装置
DE102014018533A1 (de) 2014-12-12 2016-06-16 Bomag Gmbh Verfahren zur Steuerung eines Arbeitszuges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324774A (en) * 1965-04-21 1967-06-13 Gomma Antivibranti Applic Expansion joint for road sections
US3745726A (en) * 1971-11-15 1973-07-17 Architectural Art Mfg Floor joint cover assembly
FR2672914A1 (fr) * 1991-02-19 1992-08-21 Guttaterna Dispositif de pontage.
EP0499854A1 (fr) * 1991-02-19 1992-08-26 Construction Specialties, Inc. Couvre-joint antisismique
US5791111A (en) 1996-01-27 1998-08-11 Migua Fugensysteme Gmbh Sealing device for a settlement joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324774A (en) * 1965-04-21 1967-06-13 Gomma Antivibranti Applic Expansion joint for road sections
US3745726A (en) * 1971-11-15 1973-07-17 Architectural Art Mfg Floor joint cover assembly
FR2672914A1 (fr) * 1991-02-19 1992-08-21 Guttaterna Dispositif de pontage.
EP0499854A1 (fr) * 1991-02-19 1992-08-26 Construction Specialties, Inc. Couvre-joint antisismique
US5791111A (en) 1996-01-27 1998-08-11 Migua Fugensysteme Gmbh Sealing device for a settlement joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014018533A1 (de) 2014-12-12 2016-06-16 Bomag Gmbh Verfahren zur Steuerung eines Arbeitszuges
CN104562928A (zh) * 2015-01-22 2015-04-29 宁波路宝科技实业集团有限公司 一种防陷型桥梁伸缩装置

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