US3410184A - Expansion and compression joint particularly for road surfaces - Google Patents

Expansion and compression joint particularly for road surfaces Download PDF

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Publication number
US3410184A
US3410184A US552056A US55205666A US3410184A US 3410184 A US3410184 A US 3410184A US 552056 A US552056 A US 552056A US 55205666 A US55205666 A US 55205666A US 3410184 A US3410184 A US 3410184A
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US
United States
Prior art keywords
bladder
expansion
caisson
air chamber
joint
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.)
Expired - Lifetime
Application number
US552056A
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English (en)
Inventor
Hamel Denis Marcel Henri
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.)
Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
Original Assignee
Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
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 Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA filed Critical Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
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Publication of US3410184A publication Critical patent/US3410184A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/12—Packing of metal and plastic or elastic materials
    • E01C11/126—Joints with only metal and prefabricated packing or filling

Definitions

  • An expansion and compression joint for a road surface layer comprises a metallic caisson formed by two facing channel members one sliding freely and transversely into the other, one or both channels having end plates, and resilient means between the channels.
  • a small tongue extension of the end wall of the resilient means is inserted between the side wall of the resilient means and the bottom of a channel member supporting it.
  • the resilient means may enclose an air chamber or encase a separate inflatable bladder.
  • the protection means may also be reinforced or harder rubber caps.
  • the present invention relates to expansion and compression joints which are inserted between the slabs of concrete structures. These joints are used particularly for road surfaces to maintain the concrete slabs under compression and thus prevent fissures arising whilst permitting dimensional variations of the slabs due to shrinkage of the concrete or to expansions and contractions of the surface.
  • These joints are generally placed transversely across the road surface in the intervals separating adjacent slabs so as to exert a directional compression in the longitudinal direction of the surface.
  • expansion and compression joints comprising resilient air chamber means such as an inflatable bladder contained in the interior of a metallic caisson constituted by two U-shaped metallic elements engaged one in the other. These two U-shaped elements can penetrate more or less deeply one into the other compressing the bladder so as to follow the expansions and contractions of the slabs.
  • This patent relates more particularly to means for preventing the bladder from being pinched between the two U-shaped sections or from creep, under the effect of the inflation pressure, in the spaces comprised between the two sections.
  • These means consist in providing bands of elastic material placed longitudinally in the interior angles of the larger of the two sections. These bands can be rigidly fixed to the bladder itself.
  • This protection can be effectedv by extending each wall of the end of the bladder by a small rubber tongue turned between the bottom of one of the ridged sections constituting the metallic caisson and theside wall of the bladder resting on this bottom.
  • the resilient air chamber means or bladder can be air tight and itself contain air under pressure or better, can be a non-impervious elastic envelope contain- 'ing a separate inflatable air-chamber.
  • the bladder at the reinforced end can be reduced to simple caps covering only the ends of the air-chamber to be protected.
  • the invention relates also to a process for the manufacture of bladders with reinforced ends characterised in that there is made separately a central body of the bladder by extrusion and parts of the reinforced ends by moulding and the central body and the reinforced ends are joined.
  • FIGURE 1 is a view in transverse section of a joint in accordance with the present invention, between two slabs of concrete of a road surface, the plane of the section being taken in the central part of the joint so that the form of this transverse section can apply to various embodiments of the invention shown by the other figures,
  • FIGURE 2 is a view from above of a section along the horizontal plane a-a of FIGURE 1;
  • FIGURE 3 is a perspective view showing the reinforced end of the bladder of FIGURE 2.
  • the assembly of the joint comprises a deformable metallic caisson constituted by two U-form sections 7 and 8, which can slide transversely one into the other. Inside this metallic caisson is placed an elastic bladder 13 in the form of a hollow beading. This elastic bladder contains an air chamber 14 inflatable by a valve situated preferably at an end of the joint.
  • the joint In the mounted position the joint extends across the road between two adjacent slabs of concrete 2 and 3, which rest on the foundation 1 and is supported by the faces of the ends of these slabs by intermediary metallic plates 4 and 5.
  • the interior section 7 is engaged fairly deeply in the exterior section 8 but of course there is provided a suicient play to enable the expansion of the slabs 2 and 3.
  • the bladder 13 comprises longitudinal lips 131 and 132 situated so as to be just placed in the interior angles set into exterior section 8, opposite the edges 71 of the Wings of the interior section 7.
  • the lips 131, 132 of the elastic bladder assume their place in the reentrant angles of the section 8 and they substantially fill the free space comprised between the bottom of the section 8 and the edge 71 of the wings of these interior section 7. They avoid the bladder 13 having its wall folded back in the spaces and from being nipped between the two sections.
  • the ends of the bladder 13 are, according to the invention, reinforced by means of a rubber tongue 20, made in one piece with the bladder.
  • This tongue 20 extends on one side the end wall 21 of the bladder 13 and it is folded back between the side wall of the bladder and the bottom of the interior section 7. It is sufciently thick to form a shield preventing the bladder from being nipped or from creep in the clearance 22 comprised between the end plate 11 jointed at the end of the section 8 and the face of the end of the section 7 under the effect of the inflation pressure of the air chamber.
  • the end of the small tongue 20 can be tapered to ensure a progressive joining up of the superimposed walls.
  • the end wall 21 of the bladder is partly cut out by a slit 23 (FIGURE 3) enabling the introduction of the air chamber.
  • a slit 23 FIG. 3
  • the bladder 13 is used without an air chamber, this slit is omitted and the end wall 21 is hermetically joined to the body of the bladder.
  • the ends of these Abladders can be further reinforced by using for their ends, rubber mixtures more resistant to stretching than that constituting the central body of the bladders.
  • the bladder 13 When the bladder 13 is used as a protective envelope, for an interior air chamber 14, it has no need to be tight and can then be constituted by separate elements, namely a central part 13a, and end parts 13b, the latter being suitably reinforced. These various parts are simply closed around the air chamber.
  • the bladder can be narrowed at the single parts of the ends 13b, having the form of caps reinforced as described above and covering only the ends of the air chamber to protect it from creep and from pinching by the ends of the caisson.
  • An expansion and compression joint for road surface layers and the like comprising a metallic caisson nel Amerhbers towards and away from each other, ,and at least the larger channel member ⁇ having end plates closinglthe inner ⁇ space of the caisson, a pair of longitudinal ribs provided to extend between the end of the smaller channel anges and the bottom of the larger channel member," inflatable resilient casing means enclosed in the caisson and in contacting relationship with the inner surfaces of said caisson, the end walls of said casing means engaging the end plates of the larger channel member and extended by a tongue inserted between the bottom'of said smaller channel member and the side wall ofthe casing means supported against said bottom.
  • a joint according to claim 1, wherein said casing consists of a central body and end members in form of separate caps engaging said end plates.
  • a joint according to claim 2, wherein said casing consists of a central body and end members in the form of caps engaging said end plates.
  • a joint according to claim 2 including an inflatable tube enclosed in said casing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Building Environments (AREA)
  • Road Paving Structures (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
US552056A 1965-06-04 1966-05-23 Expansion and compression joint particularly for road surfaces Expired - Lifetime US3410184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR19750A FR1451308A (fr) 1965-06-04 1965-06-04 Joint de dilatation et de compression notamment pour revêtements routiers

Publications (1)

Publication Number Publication Date
US3410184A true US3410184A (en) 1968-11-12

Family

ID=8581052

Family Applications (1)

Application Number Title Priority Date Filing Date
US552056A Expired - Lifetime US3410184A (en) 1965-06-04 1966-05-23 Expansion and compression joint particularly for road surfaces

Country Status (10)

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US (1) US3410184A (en))
BE (1) BE681834A (en))
CH (1) CH442394A (en))
DE (1) DE1534358B1 (en))
ES (1) ES327511A1 (en))
FR (1) FR1451308A (en))
GB (1) GB1102598A (en))
LU (1) LU51235A1 (en))
NL (1) NL6607717A (en))
SE (1) SE304533B (en))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10676875B1 (en) * 2019-01-04 2020-06-09 Schul International Co., Llc Expansion joint seal system for depth control

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100244996B1 (ko) * 1995-12-25 2000-02-15 이마이 기요스케 릴랙스 유도장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78191E (fr) * 1959-02-12 1962-06-15 Entpr S Boussiron Soc D Joints pour constructions
US3106879A (en) * 1960-02-02 1963-10-15 Kleber Colombes Expansion and compression joints for road surface layers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185206B (de) * 1960-02-02 1965-01-14 Pneumatiques & Caoutchouc Manu Fugeneinlage fuer Strassendecken

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78191E (fr) * 1959-02-12 1962-06-15 Entpr S Boussiron Soc D Joints pour constructions
US3106879A (en) * 1960-02-02 1963-10-15 Kleber Colombes Expansion and compression joints for road surface layers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10676875B1 (en) * 2019-01-04 2020-06-09 Schul International Co., Llc Expansion joint seal system for depth control

Also Published As

Publication number Publication date
DE1534358B1 (de) 1970-10-29
NL6607717A (en)) 1966-12-05
FR1451308A (fr) 1966-01-07
SE304533B (en)) 1968-09-30
BE681834A (en)) 1966-11-30
GB1102598A (en) 1968-02-07
CH442394A (fr) 1967-08-31
LU51235A1 (en)) 1966-12-02
ES327511A1 (es) 1967-07-16

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