US3797952A - Roadway transition for expansion joints on road bridges etc. - Google Patents

Roadway transition for expansion joints on road bridges etc. Download PDF

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Publication number
US3797952A
US3797952A US00203683A US3797952DA US3797952A US 3797952 A US3797952 A US 3797952A US 00203683 A US00203683 A US 00203683A US 3797952D A US3797952D A US 3797952DA US 3797952 A US3797952 A US 3797952A
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United States
Prior art keywords
bars
hinges
lazy tongs
expansion joints
improvement
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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
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US00203683A
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English (en)
Inventor
K Pommerening
R Salewski
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Rheinstahl AG
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Rheinstahl AG
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Priority claimed from DE19712103415 external-priority patent/DE2103415C/de
Application filed by Rheinstahl AG filed Critical Rheinstahl AG
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    • 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

  • a roadway transition for expansion joints on road bridges and the like includes intermediate bars extending parallel to the joint edges.
  • the bars are supported at at least two points along their lengths by vertically oriented lazy tongs having their hinges extending parallel to the joint edges, these lazy tongs forming supporting beams for the intermediate bars.
  • the upper end hinges of the lazy tongs are fixedly articulated at points in the range of the joint edges, so that the upper and lower intermediate hinges are in common vertical planes, with the upper intermediate hinges lying, in any position of the lazy tongs, in the horizontal plane of the upper end hinges.
  • Each intermediate bar has at least one supporting member engageable with another intermediate bar to prevent tilting.
  • the lower end hinges of the lazy tongs may be mounted in vertical guide slots.
  • This invention relates to roadway transitions for expansion joints on road bridges and the like and, more particularly, to a novel and improved roadway transition of the type comprising intermediate bars extending parallel to the joint edges and supported by lazy tongs.
  • flat lazy tongs are articulated, with vertically oriented hinges, to the joint edges, these lazy tongs consisting of several tong sections connected with each other by means of intermediate hinges.
  • the lazy tongs are variable in their opening width transverse to the expansion joint, and are connected, at their intermediate hinges, with the intermediate bars, for guidance. Thereby, the distances of the intermediate bars on both sides on the expansion joint edges and/or adjoining intermediate bars vary to the same extent during variations of the expansion joint width, and remain always at the same distance relative to each other.
  • the invention is directed to providing a roadway transition of the general type just described, but avoiding the mentioned disadvantages, with the objective of the invention being to design a roadway transition. for expansion joints on road bridges etc., in such a way that the intermediate bars can be rigidly connected at all supporting points to each supporting beam in order positively to avoid rattling noises and tilting movements of the intermediate bars.
  • the lazy tongs are vertically oriented and are designed as supporting beams for the intermediate bars, with the hinges of the lazy tongs extending generally horizontally and parallel to the expansion joint edges.
  • the upper end hinges are fixedly articulated in the range of the joint edges, so that the intermediate hinges, connecting the tong sections, are arranged in superposition and the upper intermediate hinges, ineach position of the tongs, are arranged in the plane including the upper end hinges.
  • each intermediate bar is fixedly connected to the coaxial upper intermediate hinges of at least two laterally spaced lazy tongs, and has at least one mounting support against tilting.
  • the lazy tongs thus serve at the same time as supporting beams and guide elements to secure the spacing of the intermediate bars from each other and from the expansion joint edges, so that, by eliminating special supporting beams, as were considered necessary heretofore, the construction is considerably simplified.
  • roadway transitions of the type known, for example, from German patent No. 1,241,477 not only are the bearing beams and the bearings necessary for these beams eliminated but also the movement openings, necessary for these bearing means, and which are specially closed in concrete construction, are eliminated.
  • edge beams or edge constructions which are always necessary at the edges of the expansion joint, are considerably simpler in the invention roadway transition as compared with known roadway transitions, so that their anchoring also is simpler and the shuttering and casting of concrete in structural parts forming the expansion joints are less expensive.
  • the upper end hinges of the lazy tongs are fixedly articulated in the range of the joint edges, so that the upper intermediate hinges of each individual tongs, which connect the tong sections and which serve at the same time to secure the intermediate bars, are arranged, in each position of the tongs, in a plane determined by the upper end hinges of these tongs, so that, indirectly, the uniform vertical position of the intermediate bars is also assured. Since each intermediate bar must be supported and guided throughout its length for static reasons at least two points, it is rigidly connected to the coaxial upper intermediate hinges of at least two lazy tongs arranged, according to the invention, in the expansion joint, while it is secured by at least one mounting support against tilting by the traffic load.
  • the lazy tongs generally can be so designed that they are fixedly mounted at their ends with one hinge and displaceably mounted with respect to the other hinge.
  • the two upper end hinges are, in each case, fixedly articulated in the range of the joint edges, while the lower end hinges are mounted, in one embodiment and in a known manner, on the respective joint edge in a vertical guide slot.
  • the most expedient design of the lazy tongs is one where the tong bar of the two intersecting tong bars of the outer tong sections articulated in the range of the joint edges, and which intersects the tong bar articulated at the top, terminates on the central hinge connecting the two tong bars. Due to this design of this lazy tongs, the roadway transition not only is lighter than with guides of the lower end hinges on the joint edges, but it also has the advantage, over the latter, that the tongs adapt themselves to all movements of the part forming the expansion joint and without jamming.
  • the fastening of the lazy tongs in the range of the joint edges can be so designed that the upper end hinges of the latter are articulated directly to parts protecting, in a known manner, the joint edges, and with the parts forming the expansion joint.
  • the entire roadway transistion, including the edge beams, is preferably assembled in the work shop and inserted on the construction site into corresponding recesses of the parts forming the expansion joint, which are subsequently closed, as usual, preferably by casting with concrete.
  • a greater advantage is the design of the roadway transition where so-called edge bars with edge beams arranged at the joint edges are connected fixedly but disengageably to the edge joints and where the upper end hinges of the lazy tongs are fixedly articulated on the edge bars.
  • This type of articulation of the lazy tongs provides, in many cases, the possibility of first inserting the edge beams into the parts forming the expansion joint and subsequently assembling the intermediate bars, assembled in the work shop with the lazy tongs to a "pack", between the edge beams, and removing this pack" again if necessary, for example, for repairs. without damaging the edge beams or the adjoining parts.
  • the mounting supports preventing tilting of the intermediate pipes under traffic loads can consist, in the simplest form. of flat steel bars which are secured on the bottom edges of each intermediate bar and which are guided under adjoining intermediate bars or edge bars in the same manner as the mounting supports according to German design patent No. 1,981,260. With large tilting forces, however, other measures must be taken to prevent tilting of the intermediate bars.
  • the mounting support assuring against tilting of each intermediate bar is secured to the base of the intermediate bar and extends downwardly beyond the lower intermediate hinge of the lazy tongs, which is arranged vertically beneath the upper intermediate hinge, and has, at the bottom end, a vertical slot for guiding the hinge pin of the lower intermediate hinge, thus securing the intermediate bar through the mounting support against tilting.
  • the longer lever arm forming this mounting support assures good security against tilting movements of the intermediate bars.
  • the mounting support of the intermediate bar is also secured on its base, but is not conducted downwardly beyond an adjoining upper intermediate hinge, and has, in its range, a horizontal slot in which the hinge pin of this intermediate hinge is guided.
  • This embodiment is particularly, applicable in those cases in which simple flat steel bars are no longer sufficient as a security against tilting, but on the other hand, the forces are not great enough so that the amount of support must be designed with the very long lever arm, as mentioned above.
  • the hinges Since the hinges must be movable easily even under heavy traffic loads and in any weather, the hinges, and the sliding surfaces of the mounting supports preventing tilting of the bars, are preferably and advantageously provided with a coat of known frictionreducing material, preferably of plastic.
  • the waterproof construction is preferred, particularly because the lazy tongs thus are protected also against water and ice.
  • the waterproofness is preferably attained by arranging, in a known manner, elastic rubber pads at both sides of the intermediate bars, and which are preferably fixedly connected with the latter by cementing or clamping.
  • An object of the invention is to provide an improved expansion joint for a roadway transition.
  • Another object of the invention is to provide such an expansion joint which is free of the disadvantages of known types of expansion joints.
  • a further object of the invention is to provide such an expansion joint which is simpler and less expensive in construction and simpler to mount in position.
  • FIG. 1 is a vertical sectional view through a roadway transition embodying the invention and wherein each lazy tong consists of five tong sections;
  • FIG. 2 is a view similar to FIG. 1, but illustrating a double support of the lazy tongs
  • FIG. 3 is a vertical sectional view through a roadway transition embodying the invention and with elastic rubber pads arranged at both sides of the intermediate bars, with a minimum joint width-summer position;
  • FIG. 4 corresponds to FIG. 3 but illustrates a maximum joint width-winter position
  • FIG. 5 is a vertical sectional view of a roadway transition embodying the invention and wherein the lazy tongs comprise double tong bars;
  • FIG. 6 illustrates an embodiment of the invention particularly designed for large traffic loads, with the outer tong bars of the lazy tongs extended downward to a common connecting link and in with the other tong bars articulated on the outer tong bars", and
  • FIG. 7 is a partial perspective view illustrating the essential parts of the left half of the roadway transition shown in FIG. 4.
  • the roadway transitions shown in FIGS. 1 and 2 are arranged in the expansion joint 1 between two structural parts, namely a road bridge 2 and the adjoining road 3.
  • the edge beams 15 are provided, in their upper thirds and in a usual manner, with a flange 5, forming a sealing ledge, for connection of the road cover 6 and a packing 7.
  • lazy tongs 9 only one of which is shown. These lazy tongs are designed as supporting means for the intermediate bars, are vertically oriented, and have their hinges l0, l1 and 12 extending parallel to the joint edges 13.
  • the upper end hinges are fixedly articulated on edge bars 4 fixedly connected on edge beams 15, and the upper intermediate hinges 11 extend, in any position of the tongs, in a plane determined by the upper end hinges 10.
  • Intermediate bars 8 are fixedly connected with the coaxial upper intermediate hinges ll of the parallel lazy tongs arranged in the expansion joint, and each bar 8 has a mounting support 17 preventing tilting, of which only one is shown, for the sake of clarity, in FIG. 2.
  • This mounting support consists of a flat steel bar secured to the foot of each of the intermediate bar and extending under the adjoining intermediate bars. 7
  • the lazy tongs in FIG. 1 differs from that in FIG. 2 in that, in FIG. 1, tong bar 19 of the two intersecting tong bars 18 and 19 of each tong section 14 articulated to edge bars 4, which intersects tong bar 18 articulated with upper end hinge 10 on edge bar 4, terminates on central hinge 20 interconnecting the two tong bars.
  • tong bars 29 intersecting tong bars 18 have the same length as tong bars 18 and are mounted, in a known manner, in a vertical guide slot means 22, the guide slot means being displaceably mounted in edge beams 15 in order to avoid jamming with abutment settings.
  • edge bars 40 rest on brackets 23 which are secured on edge beams 15.
  • Edge beams 15 have, on the one hand, round steel stays 24 and, on the other hand, reinforcements 25 with bores for concrete steels 26 for staying the edge beams 15 in the secondary concrete with which the recesses are filled after the mounting of edge beams 15.
  • Lazy tongs 9 are fixedly articulated with their upper end hinges 10 on edge bars 40, so that the roadway transition can be pushed out of the expansion joint 1 after opening the welded seams 32 which connect edge beams 15 and edge bars 40.
  • the mounting supports have, at the bottom end, a vertical slot 28 for guiding the hinge pin of intermediate hinge 12.
  • elastic rubber pads 31 which are preferably of tubular form and by means of which the roadway transition'is sealed against the passage of water and/or dirt.
  • mounting supports 37 preventing tilting of the intermediate bars are arranged on the base of each intermediate bar and extend beyond an adjacent intermediate hinge 11.
  • Each support 37 is provided with the horizontal slot 32 in which the hinge pin of intermediate hinge 11 is guided.
  • the tong bars are designed alternately as double bars or single bars, the latter having a correspondingly larger cross section, and the mounting supports 27, preventing tilting and secured on the intermediate bars 8, are forked.
  • a roadway transition for expansion joints on road bridges and the like, of the type including at least one intermediate bar extending, in an expansion joint; parallel to the joint edges and supported at at least two points along its length, at least two lazy tongs guiding each intermediate bar and articulated, in laterally spaced relation to each other, on the joint edges, with each lazy tongs having at least two tong sections connected by intermediate hinges and each lazy tongs being variable in its opening width transversely of the expansion joint, so that the spacings of opposite sides of the associated intermediate bar, from the adjacent respective joint edges or from adjoining intermediate bars, vary uniformly in variations of the joint width and are always the same relative to each other; the improvement comprising, in combination, said lazy tongs having their hinges extending horizontally and parallel to the joint edges, and said lazy tongus being oriented vertically and forming supporting beams for the intermediate bars', said lazy tongs having upper end hinges fixedly articulated at points in the range of the joint edges and having upper and lower intermediate hinges which thereby are in common vertical
  • the improvement claimed in claim 1 including plural intermediate bars; and means fixedly connecting each intermediate bar with the upper intermediate hinges of at least two lazy tongs, which upper intermediate hinges of the at least two lazy tongs are coaxial with each other.
  • the improvement claimed in claim 2 including at least one mounting support secured to each intermediate bar and constructed and arranged to inhibit tilting of the associated intermediate bar.
  • each tong section articulated to joint edges has two interconnecting tong bars, with that tong bar pivotally connected to the tong bar having its upper end hinge fixedly articulated in the range of the joint edge being pivotally connected to the latter at a central hinge interconnecting said two tong bars.
  • the improvement claimed in claim 3 wherein the transition includes edge beams extending along the joint edges; and respective edge bars detachably connected with said edge beams, the upper end hinges of said lazy tongs being fixedly articulated to said edge bars.
  • each mounting support is secured to the base of the associated intermediate bar and extends downwardly beyond the lower intermediate hinge which is vertically beneath the upper intermediate hinge; each mounting support having, at its lower end, a vertical slot for guiding the hinge pin of the associated lower intermediate hinge.
  • each mounting support is secured to the base of the associated intermediate bar and extends horizontally beyond the upper intermediate hinge at the adjacent intermediate bar; each mounting support having a horizontal slot guiding the hinge pin of said last-named upper intermediate hinge.

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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)
US00203683A 1971-01-26 1971-12-01 Roadway transition for expansion joints on road bridges etc. Expired - Lifetime US3797952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712103415 DE2103415C (de) 1971-01-26 Abdeckvorrichtung fur Dehnungsfugen in Straßenbrücken od dgl

Publications (1)

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US3797952A true US3797952A (en) 1974-03-19

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US00203683A Expired - Lifetime US3797952A (en) 1971-01-26 1971-12-01 Roadway transition for expansion joints on road bridges etc.

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US (1) US3797952A (da)
AT (1) AT310233B (da)
BE (1) BE776775A (da)
CH (1) CH541034A (da)
DK (1) DK131912C (da)
ES (1) ES398064A1 (da)
FR (1) FR2124874A5 (da)
GB (1) GB1325250A (da)
NL (1) NL7200634A (da)
NO (1) NO125692B (da)
SE (1) SE348246B (da)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904302A (en) * 1971-11-23 1975-09-09 Maurer Friedrich Soehne Expansion gap sealing device
US3904304A (en) * 1973-05-07 1975-09-09 Honel Holdings Ag Expansion joints for a roadway
US3907443A (en) * 1973-12-19 1975-09-23 Acme Highway Prod Composite expansion joint assembly
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
US4087191A (en) * 1977-01-31 1978-05-02 Felt Products Mfg. Co. Large motion expansion joint
US4120066A (en) * 1977-06-01 1978-10-17 Yves Gerald Leroux Expansion joint for roadway sections
US4397579A (en) * 1981-06-08 1983-08-09 Columbia Chase Corporation Expansion joint structures
US4557082A (en) * 1984-05-17 1985-12-10 Metalines, Inc. Wide extension expansion joint assembly
US5058350A (en) * 1988-08-13 1991-10-22 Nippon Aluminium Mfg., Co., Ltd. Expansion joint apparatus
US5302050A (en) * 1991-04-29 1994-04-12 Friedrich Mauerer Sohne GmbH & Co. KG Device for bridging expansion joints in bridges or the like
US5964069A (en) * 1996-07-26 1999-10-12 Maurer Soehne Gmbh & Co. Kg Bridging means for joint gap
US6022169A (en) * 1998-05-09 2000-02-08 Korea Institute Of Machinery And Materials Expansion joint apparatus
US6418677B1 (en) * 2000-07-28 2002-07-16 Doei Gaiso Yugen Gaisha Joint device for floor
US6609265B1 (en) * 2002-10-03 2003-08-26 Thomas C. Jee Seismic proof articulating bridge deck expansion joint
US6928683B1 (en) * 2002-06-25 2005-08-16 Stuart Craig Hanson Extendable support structures
US20080229682A1 (en) * 2007-03-22 2008-09-25 Kivatec S.R.L. Aseismic joint
US20160108587A1 (en) * 2013-02-19 2016-04-21 Technische Universität Wien Roadway joint device
US9938676B2 (en) * 2015-09-15 2018-04-10 Jinhyung Construction Co., Ltd. Bridge expansion joint
US10352004B2 (en) * 2014-05-28 2019-07-16 MOREIRA SERRO, Afonso Load transmission device
US10794020B2 (en) * 2016-10-12 2020-10-06 Maurer Engineering Gmbh Bridging device for a construction joint with a hydraulic control device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE528402C (de) * 1930-01-09 1931-06-29 Benno Stecher Dr Ing Nachgiebige Dehnungsfuge fuer Behaelter
US2084100A (en) * 1935-06-07 1937-06-15 Frederick J Mchugh Expansion joint
US2237141A (en) * 1940-01-24 1941-04-01 Etta F Gale Curtain support
FR1362510A (fr) * 1963-03-26 1964-06-05 Cie D Ingenieurs Et Technicien Dispositif de liaison entre deux portions du tablier d'un pont
CH433418A (de) * 1965-12-04 1967-04-15 Honegger Heinrich Vorrichtung zur Überbrückung von Dilatationsfugen
US3482492A (en) * 1967-04-05 1969-12-09 Acme Highway Prod Joint seal
US3490603A (en) * 1967-06-28 1970-01-20 Ernest M Willer Collapsible,continuously adjustable printed circuit board retaining device
US3648423A (en) * 1969-11-19 1972-03-14 Delmar W Cole Expansion joint

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE528402C (de) * 1930-01-09 1931-06-29 Benno Stecher Dr Ing Nachgiebige Dehnungsfuge fuer Behaelter
US2084100A (en) * 1935-06-07 1937-06-15 Frederick J Mchugh Expansion joint
US2237141A (en) * 1940-01-24 1941-04-01 Etta F Gale Curtain support
FR1362510A (fr) * 1963-03-26 1964-06-05 Cie D Ingenieurs Et Technicien Dispositif de liaison entre deux portions du tablier d'un pont
CH433418A (de) * 1965-12-04 1967-04-15 Honegger Heinrich Vorrichtung zur Überbrückung von Dilatationsfugen
US3482492A (en) * 1967-04-05 1969-12-09 Acme Highway Prod Joint seal
US3490603A (en) * 1967-06-28 1970-01-20 Ernest M Willer Collapsible,continuously adjustable printed circuit board retaining device
US3648423A (en) * 1969-11-19 1972-03-14 Delmar W Cole Expansion joint

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Der Bavinginieur, 1939, pages 586,587. *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904302A (en) * 1971-11-23 1975-09-09 Maurer Friedrich Soehne Expansion gap sealing device
US4050207A (en) * 1972-04-10 1977-09-27 Firma Friedrich Maurer Soehne Expansion gap sealing device
US3904304A (en) * 1973-05-07 1975-09-09 Honel Holdings Ag Expansion joints for a roadway
US3907443A (en) * 1973-12-19 1975-09-23 Acme Highway Prod Composite expansion joint assembly
US4076440A (en) * 1975-07-29 1978-02-28 Silvio Bertschmann Expansion joint bridging device
US4087191A (en) * 1977-01-31 1978-05-02 Felt Products Mfg. Co. Large motion expansion joint
US4120066A (en) * 1977-06-01 1978-10-17 Yves Gerald Leroux Expansion joint for roadway sections
US4397579A (en) * 1981-06-08 1983-08-09 Columbia Chase Corporation Expansion joint structures
US4557082A (en) * 1984-05-17 1985-12-10 Metalines, Inc. Wide extension expansion joint assembly
US5058350A (en) * 1988-08-13 1991-10-22 Nippon Aluminium Mfg., Co., Ltd. Expansion joint apparatus
US5302050A (en) * 1991-04-29 1994-04-12 Friedrich Mauerer Sohne GmbH & Co. KG Device for bridging expansion joints in bridges or the like
US5964069A (en) * 1996-07-26 1999-10-12 Maurer Soehne Gmbh & Co. Kg Bridging means for joint gap
US6022169A (en) * 1998-05-09 2000-02-08 Korea Institute Of Machinery And Materials Expansion joint apparatus
US6418677B1 (en) * 2000-07-28 2002-07-16 Doei Gaiso Yugen Gaisha Joint device for floor
US6928683B1 (en) * 2002-06-25 2005-08-16 Stuart Craig Hanson Extendable support structures
US6609265B1 (en) * 2002-10-03 2003-08-26 Thomas C. Jee Seismic proof articulating bridge deck expansion joint
US20080229682A1 (en) * 2007-03-22 2008-09-25 Kivatec S.R.L. Aseismic joint
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
US10352004B2 (en) * 2014-05-28 2019-07-16 MOREIRA SERRO, Afonso Load transmission device
US9938676B2 (en) * 2015-09-15 2018-04-10 Jinhyung Construction Co., Ltd. Bridge expansion joint
US10794020B2 (en) * 2016-10-12 2020-10-06 Maurer Engineering Gmbh Bridging device for a construction joint with a hydraulic control device

Also Published As

Publication number Publication date
NL7200634A (da) 1972-07-28
FR2124874A5 (da) 1972-09-22
NO125692B (da) 1972-10-16
DK131912B (da) 1975-09-22
DE2103415B2 (de) 1973-01-04
DE2103415A1 (de) 1972-08-24
SE348246B (da) 1972-08-28
ES398064A1 (es) 1975-03-01
CH541034A (de) 1973-08-31
BE776775A (fr) 1972-04-17
AT310233B (de) 1973-09-25
DK131912C (da) 1976-02-16
GB1325250A (en) 1973-08-01

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