US3904302A - Expansion gap sealing device - Google Patents

Expansion gap sealing device Download PDF

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Publication number
US3904302A
US3904302A US308452A US30845272A US3904302A US 3904302 A US3904302 A US 3904302A US 308452 A US308452 A US 308452A US 30845272 A US30845272 A US 30845272A US 3904302 A US3904302 A US 3904302A
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US
United States
Prior art keywords
legs
sealing device
gap
strips
expansion gap
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
US308452A
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English (en)
Inventor
Silvio Bertschmann
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.)
Kober AG Glarus
Friedrich Maurer Soehne GmbH and Co KG
Maurer Soehne GmbH and Co KG
Original Assignee
Maurer Soehne GmbH and Co KG
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 Maurer Soehne GmbH and Co KG filed Critical Maurer Soehne GmbH and Co KG
Application granted granted Critical
Publication of US3904302A publication Critical patent/US3904302A/en
Assigned to FRIEDRICH MAURER SOEHNE GMBH & CO KG. reassignment FRIEDRICH MAURER SOEHNE GMBH & CO KG. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE FEB 20,1978 Assignors: FRIEDRICH MAURER SOEHNE KG
Assigned to FIRMA KOBER A.G. reassignment FIRMA KOBER A.G. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SOEHNE, FRIEDRICH M.
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
    • 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
    • E01D19/062—Joints having intermediate beams

Definitions

  • the present expansion gap sealing device has a plural- 52 us. Cl; 404/68; 52/396 ity of rigid strips and elastomeric Strips between adja [51] f EOIC "/12; E04 ⁇ : 15/14 cent rigid strips which extend longitudinally through Fleld 0 Search the The strips are Supported l g extending 52 58 downwardly into the gap. Upper ends of the legs are connected to the rigid strips.
  • Lower ends of the legs [56] References and are interconnected with each other in pairs whereby UNITED STATE PAT adjacent legs form a pair and an elastically yielding 3,113,493 12/1963 Rinker 52/396 structure.
  • the lower leg ends may be interconnected 3,245,328 4/1966 Fassbinder... 52/396 by bars.
  • 3,423,780 1/1969 A116 404/47 3,482,492 l2/l969
  • the invention relates to expansion gap sealing devices for bridging expansion gaps in bridges, roadways or the like wherein so called gap strips form the traffic supporting roadway surface. Between adjacent strips there are inserted elastic expansion members extending with the strips longitudinally and in parallel to each other through the gap.
  • the gap strips include edge plates connected to the edges of the gap.
  • the known device requires a high degree of accuracy in manufacture if a uniform distribution of forces in the connecting rods is to be achieved.
  • the pivots are subject to wear and tear and tend to produce rattling noises. Forces acting transverse to the direction of traffic movement cannot be absorbed by the known device, yet such forces do arise and in practice they cannot be avoided whereby overloading of the joints cannot be prevented and the useful life of the assembly is thereby shortened.
  • a further drawback of the known device is seen in that the desired elasticity of the grid can only be attained when the sealing device bridges relatively nar row gaps because only then may the supporting bars be made sufficiently thin to be easily deformable.
  • Known sealing devices of the just described type require stiff carrier bars when they are to bridge wide expansion gaps, whereby the known device only has a small elasticity or deformability.
  • a further drawback of the known device is seen in that the straight supporting bars which extend across the line of traffic flow cannot be arranged with any desired small spacing between them because sufficient space must be provided between the straight bars for the wavy supporting bars.
  • This requirement produces problems both in the employment of the known device in very narrow expansion gaps and also in wide expansion gaps with stiff supporting bars of substantial dimensions, which only have sufficient deformability when they are longer than a predetermined length, and when there is a predetermined spacing between the bars which extend transverse to the direction of traffic flow.
  • each support for the expansion gap sealing device comprises legs or rods extending inclined to the roadway surface, wherein the legs are connected together through their upper and lower ends.
  • the upper rod or leg ends are connected to rigid gap strips and the lower ends are interconnected in pairs, whereby the supporting structure is elastically deformable in itself and/or due to the interconnections.
  • supports in the sense of the invention we mean quite generally an assembly of individual sections put together, which sections are elastically deformable, i.e. are movable against resilient opposition.
  • the sections extend substantially vertically or inclined to the roadway surface, their vertical length is only limited by the depth of the gap and therefore the legs may be made sufficiently elastic for all gap widths and at the same time of sufficient strength.
  • the space available below the gap strips may be fully employed.
  • the construction according to the invention avoids sealing problems because the spaces between the strips may be sealed in the usual manner by elastically yielding sealing bodies.
  • the second connecting means for the lower ends of the legs comprise connecting members, for example, bars with holes or grooves therein into which the ends of the legs are inserted.
  • FIG. 1 is a section through one embodiment of the sealing device according to the invention, taken in a plane transversely through the gap;
  • FIG. 2 is a plan view of the device of FIG. I, whereby in the lefthand portion the sealing strips have been omitted;
  • FIG. 3 is a section through the gap illustrating a modified embodiment with a support made of rods bent to a U-shape
  • FIG. 4 is a plan view of the device of FIG. 3;
  • FIG. 5 shows, in perspective, a modification of the device shown in FIGS. 3 and 4;
  • FIG. 6 is a perspective view of a portion of a device with a support made out of rod legs bent in three dimensions.
  • FIG. 1 shows the gap to be bridged in cross section.
  • the gap is defined by the two edges 1 and 2, for example of a roadway, having a surface layer 3 and a roadway sub-structure 4.
  • the gap is bridged by rigid gap strips including two edge plates 5 and 6 secured to the edges of the gap as by welding and a plurality of rigid strips such as gap strips 7, 8 and 9 arranged in the gap itself and forming with their upper edges the roadway surface across the gap.
  • expansion strips 10 of elastic material are arranged between adjacent rigid gap strips and between an edge plate and the respective gap strip adjacent to the respective edge plate.
  • the elastic strips 10, the plates 5 and 6, and the strips 7, 8, 9 extend longitudinally through the entire length of the gap or over part of the length of the gap depending on the type of construction.
  • legs or rods 11 are secured at their upper portions to said plates and strips.
  • the lower ends of the rods associated with an adjacent plate or strip are connected to each other so that each plate or strip is connected through the respective rods to the next adjacent plate or rigid strip.
  • the rods associated with the strips 7 and 9 and inclined towards the middle of the gap are connected to the rods associated with the strip 8.
  • the rods which are inclined in an outward direction are connected to the rods associated with the edge plates 5 and 6.
  • the upper ends of the rods are inserted in holes in the strips and plates and retained in said holes by pins 12.
  • the same manner of attachment may be used for connecting the lower ends of the rods.
  • connecting bars 13, shown in section are provided with holes 14 to receive the rods.
  • the rods are retained in the holes by means of pins 15.
  • the bars 13 could be cut from continuous longitudinal stock, substantially to the same length as the plates and strips. However, the bars 13 could equally well be made shorter, so that for example, only two or three rod interconnections are provided on each member. Finally the bars 13 could also be in the form of short blocks, each of which is only designed to secure and interconnect two rods 11.
  • the ends of the rods in the plates and in the bars 13 are preferably retained in an encased manner.
  • FIG. 2 shows a plan view of FIG. 1.
  • the gap strips 7, 8 and 9 are arranged to be movable transversely with respect to the gap.
  • the bars I3 and the strips and plates extend from the edge 16 of the assembly in the longitudinal direction of the gap indicated by the arrow 17.
  • the length of the plates and strips as well as of the bars 13 extending from the edge 16 may be choses as desired.
  • the expansion strips 10 are omitted so that one may see the bars 13 and the rods 11.
  • the edge plates 5 and 6 are secured in the concrete of the roadway foundation 4 by means of anchors 69 and 70.
  • FIGS. 3 and 4 illustrate a modified device in section and in a plan view, corresponding in its basic construction substantially to the embodiment of FIGS. 1 and 2.
  • the edge plates 5 and 6 are connected to the edges 1 and 2 of the gap.
  • the gap strips 7, 8 and 9 are connected to each other and to the edge plates by means of the rods 18 bent to a hair pin shape.
  • each rod connects two adjacent gap strips or a gap strip and an edge plate.
  • the edge plates 5 and 6 are connected to the edges of the gap, for example, by welding the plates to the anchors 69, 70.
  • the connecting elements are solely the rods 18 which as viewed in the longitudinal direction of the gap, that is perpendicular to the plane of the drawing, are arranged one behind another, at predetermined spacings, whereby the total number of rods will depend on the bearing capacity of the overall assembly.
  • the upper ends 19 of the rods are again received in holes in the plates and retained by pins 20.
  • the rods 18 are preloaded into position, whereby the rods effect a restoring or biasing action on the movable gap strips 7, 8 and 9, so that these strips are always held in a central position.
  • This arrangement has that advantage that both the vertical loads and also the horizontal braking or accelerating forces may be taken up by the rods.
  • FIG. 4 shows a plan view of the device of FIG. 3, whereby only the strips 7, 8 and 9 with their rods 18 are shown.
  • An even better utilization of the elastic forces in the rods 18 can be achieved by arranging these rods as illustrated in FIG. 5 whereby the ends 19a and 19b of a rod, as viewed in the direction of the length of the gap are connected to the gap strips one behind the other so that the rods 18 as viewed in a plan view extend in directions inclinded to the transverse direction of the gap.
  • the end 19! is displaced by the distance L with respect to the end of the rod 18.
  • the rod combinations form elastic support means for the gap strips.
  • FIG. 6 shows a portion of a device with an elastic support made up of three-dimensionally bent rods 44, 44a.
  • the rods connect the bars 45 and 45a alternately to the edge plate 5 and to the adjacent gap strips 7 and 8.
  • the rods may be connected to the plates, bars and strips, for example, by weldments at the upper and lower bending points 46 and 47.
  • transverse slots 48 for better supporting the lower bend of the respective rod.
  • the edge plates 5 and the gap strips 7 have inclined, lateral surfaces 49, 50 respectively to achieve exact engagement of the rods in the region of the bends.
  • the upper bend of the adjacent rod is secured to the inclined, lateral surface 49 of the plate 5 shown in FIG. 6, whereby the plate 5 is connected via the bar 45 to the adjacent strip 7 and so on.
  • the rods secured to each gap strip and leading to different strips are mutually displaced with their upper bend points secured to the plates and strips so that a closely interengaging three-dimensional network of rods is produced between all the plates, strips and rods.
  • the legs are connected together as a framework whereby the leg ends are combined at the nodes.
  • the framework may be constructed to taper downwardly in its overall profile as shown in FIG. 6.
  • the nodes can be formed at the strips.
  • the strips could each have connected thereto two or more nodes or bends.
  • This embodiment allows using shorter and thereby kink-resistant and at the same time elastic rods for the legs.
  • the connection of the rods at the nodes or bends is advantageously arranged so that all movements take place solely by elastic deformation, whereby no play is necessary between connected legs.
  • the legs may be resilient at least in one direction transverse to the gap, whereby at least one leg end is rigidly or resiliently clamped or connected.
  • the legs are slanted so as to be preloaded or biased towards an intermediate position in the gap. This bias of the legs provides a spring force which simultaneously tends to hold the strips against displacement by braking or acceleration forces imparted by the vehicles that pass over the device in the gap.
  • the hairpin loops could extend in a plane transverse to the gap or in the longitudinal direction of the gap. With hairpin loops extending in the longitudinal direction the upper bends could be connected alternately to one and the other of two adjacent strips or edge plates. The lower bends of the loops could be secured to a strip which is common to the lower bends in the same or in different rod loops.
  • An expansion gap sealing device for bridging an expansion gap between edges of structural members, comprising rigid strips and compressible strips arranged in an alternating manner and extending alongside each other and longitudinally inside the gap to form an expansion and sealing assembly having outer sides connected to the edges of the gap, supporting structure means comprising rod-like legs having upper ends connected to said rigid strips, said legs extending and converging downwardly into the gap, said legs having lower ends, and lower means connecting said lower ends of the legs to form springy pairs of legs elastically supporting said assembly in response to the movement of said edges.
  • said means connecting said lower leg ends comprise a bar for each pair of legs, whereby adjacent legs, the lower ends of which are interconnected by said bar, form a pair.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
US308452A 1971-11-23 1972-11-21 Expansion gap sealing device Expired - Lifetime US3904302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1702371A CH549696A (de) 1971-11-23 1971-11-23 Fahrbahnuebergang, insbesondere fuer dilatationsfugen von brueckenfahrbahnen.

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/543,779 Continuation US4050207A (en) 1972-04-10 1975-01-24 Expansion gap sealing device

Publications (1)

Publication Number Publication Date
US3904302A true US3904302A (en) 1975-09-09

Family

ID=4422170

Family Applications (1)

Application Number Title Priority Date Filing Date
US308452A Expired - Lifetime US3904302A (en) 1971-11-23 1972-11-21 Expansion gap sealing device

Country Status (4)

Country Link
US (1) US3904302A (enrdf_load_stackoverflow)
CH (1) CH549696A (enrdf_load_stackoverflow)
DE (1) DE2217151C2 (enrdf_load_stackoverflow)
ZA (1) ZA728260B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024689A (en) * 1975-07-18 1977-05-24 Pierre Alexandre Georges Louis Sectional joint and slab from cast material
US4050207A (en) * 1972-04-10 1977-09-27 Firma Friedrich Maurer Soehne Expansion gap sealing device
US4076440A (en) * 1975-07-29 1978-02-28 Silvio Bertschmann Expansion joint bridging device
US4120066A (en) * 1977-06-01 1978-10-17 Yves Gerald Leroux Expansion joint for roadway sections
USD285006S (en) 1982-12-10 1986-08-05 Z-Tech Enterprises Inc. Expansion joint
US4699541A (en) * 1983-02-02 1987-10-13 Z-Tech Enterprises Inc. Road joint element
US5964069A (en) * 1996-07-26 1999-10-12 Maurer Soehne Gmbh & Co. Kg Bridging means for joint gap
US20110008104A1 (en) * 2009-07-08 2011-01-13 Balco, Inc. Grating system
CN103255711A (zh) * 2013-05-21 2013-08-21 成都市新筑路桥机械股份有限公司 一种分体式抗挠变多向变位桥梁伸缩装置
US20160108587A1 (en) * 2013-02-19 2016-04-21 Technische Universität Wien Roadway joint device
US10119274B2 (en) * 2013-11-28 2018-11-06 Maurer Söhne Engineering GmbH & Co. KG Bridging device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750333C2 (de) * 1977-11-10 1982-01-14 Stalko Metallbau GmbH & Co, 8899 Hohenwart Fugenüberbrückungskonstruktion für Brücken o.dgl. Bauwerke
DE3333880C2 (de) * 1983-09-20 1986-08-21 Kober Ag, Glarus Vorrichtung zur Überbrückung von Dehnungsfugen in Brücken od. dgl.
FR2831029B1 (fr) 2001-10-22 2004-02-13 Salomon Sa Semelle de chaussure pour la marche et le ski
CN118581799B (zh) * 2024-08-06 2024-10-11 山西交科桥梁附件有限责任公司 一种多向变位桥梁伸缩缝装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113493A (en) * 1960-10-03 1963-12-10 Goodrich Co B F Expansion joint
US3245328A (en) * 1961-07-06 1966-04-12 Rheinstahl Union Brueckenbau Expansion joint for road covering structures
US3423780A (en) * 1965-06-29 1969-01-28 Alten K Framework-shaped transloading bridge
US3482492A (en) * 1967-04-05 1969-12-09 Acme Highway Prod Joint seal
US3720142A (en) * 1971-09-07 1973-03-13 R Pare Elastomer seal for modular roadbeds
US3732021A (en) * 1971-03-08 1973-05-08 Brown Co D S Modular expansion joint
US3797188A (en) * 1971-03-27 1974-03-19 Migua Mitteldeutsche Gummi U A Bracket structure for elastic expansion gap sealing devices
US3797952A (en) * 1971-01-26 1974-03-19 Rheinstahl Ag Roadway transition for expansion joints on road bridges etc.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113493A (en) * 1960-10-03 1963-12-10 Goodrich Co B F Expansion joint
US3245328A (en) * 1961-07-06 1966-04-12 Rheinstahl Union Brueckenbau Expansion joint for road covering structures
US3423780A (en) * 1965-06-29 1969-01-28 Alten K Framework-shaped transloading bridge
US3482492A (en) * 1967-04-05 1969-12-09 Acme Highway Prod Joint seal
US3797952A (en) * 1971-01-26 1974-03-19 Rheinstahl Ag Roadway transition for expansion joints on road bridges etc.
US3732021A (en) * 1971-03-08 1973-05-08 Brown Co D S Modular expansion joint
US3797188A (en) * 1971-03-27 1974-03-19 Migua Mitteldeutsche Gummi U A Bracket structure for elastic expansion gap sealing devices
US3720142A (en) * 1971-09-07 1973-03-13 R Pare Elastomer seal for modular roadbeds

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050207A (en) * 1972-04-10 1977-09-27 Firma Friedrich Maurer Soehne Expansion gap sealing device
US4024689A (en) * 1975-07-18 1977-05-24 Pierre Alexandre Georges Louis Sectional joint and slab from cast material
US4076440A (en) * 1975-07-29 1978-02-28 Silvio Bertschmann Expansion joint bridging device
US4120066A (en) * 1977-06-01 1978-10-17 Yves Gerald Leroux Expansion joint for roadway sections
USD285006S (en) 1982-12-10 1986-08-05 Z-Tech Enterprises Inc. Expansion joint
US4699541A (en) * 1983-02-02 1987-10-13 Z-Tech Enterprises Inc. Road joint element
US5964069A (en) * 1996-07-26 1999-10-12 Maurer Soehne Gmbh & Co. Kg Bridging means for joint gap
US20110008104A1 (en) * 2009-07-08 2011-01-13 Balco, Inc. Grating system
US7946784B2 (en) * 2009-07-08 2011-05-24 Balco, Inc. Grating system
US20160108587A1 (en) * 2013-02-19 2016-04-21 Technische Universität Wien Roadway joint device
US9957676B2 (en) * 2013-02-19 2018-05-01 Technische Universität Wien Roadway joint device
CN103255711A (zh) * 2013-05-21 2013-08-21 成都市新筑路桥机械股份有限公司 一种分体式抗挠变多向变位桥梁伸缩装置
US10119274B2 (en) * 2013-11-28 2018-11-06 Maurer Söhne Engineering GmbH & Co. KG Bridging device

Also Published As

Publication number Publication date
DE2217151A1 (enrdf_load_stackoverflow) 1973-04-05
DE2217151C2 (de) 1973-10-18
CH549696A (de) 1974-05-31
DE2217151B1 (de) 1973-04-05
ZA728260B (en) 1973-09-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FRIEDRICH MAURER SOEHNE GMBH & CO KG.

Free format text: CHANGE OF NAME;ASSIGNOR:FRIEDRICH MAURER SOEHNE KG;REEL/FRAME:004190/0777

Effective date: 19830715

Owner name: FIRMA KOBER A.G.,, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SOEHNE, FRIEDRICH M.;REEL/FRAME:004190/0778

Effective date: 19830708