EP0444236A1 - Dehnungsfuge zwischen zwei benachbarten Strassenbrückenelementen - Google Patents

Dehnungsfuge zwischen zwei benachbarten Strassenbrückenelementen Download PDF

Info

Publication number
EP0444236A1
EP0444236A1 EP90109429A EP90109429A EP0444236A1 EP 0444236 A1 EP0444236 A1 EP 0444236A1 EP 90109429 A EP90109429 A EP 90109429A EP 90109429 A EP90109429 A EP 90109429A EP 0444236 A1 EP0444236 A1 EP 0444236A1
Authority
EP
European Patent Office
Prior art keywords
joint
bitumen
featheredge
layer
trench
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Withdrawn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
EP90109429A
Other languages
English (en)
French (fr)
Inventor
Franco Floris
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.)
ITALGIUNTI Srl
Original Assignee
ITALGIUNTI Srl
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 ITALGIUNTI Srl filed Critical ITALGIUNTI Srl
Publication of EP0444236A1 publication Critical patent/EP0444236A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • E01D19/067—Flat continuous joints cast in situ
    • 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
    • E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
    • E01D19/086—Drainage arrangements or devices

Definitions

  • This invention covers an expansion joint located between adjacent heads of two road-bridge elements, particularly designed for heavy traffic speedways.
  • the spans of road-bridges are consisting of reinforced concrete or structural steel bearing elements resting on piers; a gap accross the road deck is left between these elements to allow for their elastic deformation caused by environmental variations and mechanical stresses due to the live load applied by automotive vehicles.
  • these expansion joints were consisting of the same components used for the wearing course i.e. a base layer of hot rolled asphalt (binder) and a wear blanket consisting of aggregate and bitumen.
  • this blanket proved to be inefficient since the continuous deformation and failure of the roadway at expansion joint level required continuous and expensive maintenance.
  • the technique was adopted of cutting the featheredge along the joint, to be filled with material apt to absorb the expansion of the bridge elements while reducing the wear caused by vehicular traffic.
  • epoxy mortar was used as a filler for the transverse trench, the mortar being laid in two layers separated by a plastic or rubber sealant.
  • the European Patent 0000642 suggests to utilize a filler consisting of flexible compound made up of aggregate of a certain size and binders essentially consisting of bitumen, pitch, tar, in which the aggregate portion ranges between 40% and 70% of the total volume.
  • This invention has the aim to eliminate the above mentioned drawbacks from the expansion joints and to propose a joint having a peculiar conformation, obtained with specific materials to be placed in the transverse trench so as to ensure optimum strain absorption from the adjacent bridge elements and to obtain at least the same resistance to traffic wear as ensured by the normal wear blanket of the featheredge.
  • the expansion joint will consist of two layers filling the transverse trench; these layers will have the same thickness as the two layers of the normal featheredge, but the lower layer will have considerable viscoelastic properties whereas the wear layer will have low viscoelastic properties and is therefore rather stiff and strong just like the wearing course of the featheredge.
  • Two small cross channels, filled with highly viscoelastic material are provided on both sides of the top layer The two layers are separated by a wire netting. So that any deformation or the bridge elements is absorbed by the lower viscoelastic layer and by the two strips along the top layer, so that the later will remain rigid, strong and reinforced by the netting, virtually without deformation under the strain of the road traffic.
  • the transverse trench will be lined with a damp-proof lining course to prevent water stagnation and infiltration in the bridge structures and to improve the adhesion of the filler layers onto the side walls.
  • the invention further provides for a gap between the two bridge elements, to form a stopper or protecting sill to prevent water which always contains acid or saline products from seeping along the bridge elements, thus corroding in the length of time the reinforced concrete or metal structure of the bridge in question.
  • a preferably Z-shaped offlet will be provided on the side of the joint towards which one bridge element is converging or on both sides of the joint if both bridge elements are converging towards the joint, so that any water and liquid seeping through the featheredge can be drained before they reach and impregnate the joint structure, altering its functionality.
  • Fig.1 shows the longitudinal section of two span elements of a bridge featuring the connecting joint.
  • 1 and 2 refer to the two adjacent bridge elements both resting on proper vertical piers (not shown in this drawing). These elements are built in well known reinforced concrete or metal structures. Obviously, one of these elements may be the fixed end or "abutment" of the bridge.
  • a hollow space or gap 3 is left between the two bridge elements 1 and 2 freely to permit their elastic deformation, so that it will be necessary to provide the road deck with an expansion joint .
  • this expansion joint is consisting of a trench 5 excavated in the featheredge 4, 4'accross the roadway and usually symmetrically with respect to the hollow space 3.
  • the trench may have a width of 500 mm and 100 mm depth (equal to the average depth of the road foundation 4' and of the wearing course 4 of the featheredge), thus covering the whole width across the roadway.
  • This transverse trench 5 is excavated with known methods, by cutting and removing the material followed by careful cleaning, for instance with thermolances.
  • a preferably Z-shaped section is placed on one or on both sides of the trench 5 (lengthwise with respect to the trench) to form a gullet and offlet in which to collect the rainwater seeping though the featheredge 4, 4', so as to prevent stagnation of this usually acid water in touch with the bridge structure near the joint.
  • This section 6 is usually in non corroding material like glavanized steel, aluminium, plastic etc.
  • the hollow space 3 between the two bridge elements 1, 2 is closed by an elastic insert 7 usually in hemp or rubber on which a waterproofing compound, such as for instance pure elastomerized bitumen is poured.
  • the hollow space 3 is closed at its upper end by a flat slab 9 fitted with pins fixing the insert 7. This will prevent rain water from filtering through the joint and corroding the heads of the bridge elements 1 and 2.
  • the inner surfaces of the trench are lined with a waterproofing layer 11, for instance in pure elastomerized bitumen, so that the trench will be waterproof and will provide a better bond for the filler materials as stated hereinafter.
  • the trench 5 will be filled with a highly viscoelastic lower layer 12 consisting of a mixture of aggregate and a viscoelastic binder.
  • Aggregate should be preferably gravel with a grain size ranging between 15 and 25 mm whereas elastomerized bitumen should be used for the binder.
  • the indicatory weight ratio may be 75% aggregate and 25% bitumen in the mix.
  • a flat and flexible netting 13 is positioned on the lower layer 12, for instance in polyester 20 x 20 mm mesh, thus delimiting the upper surface of the lower layer 12 and forming the base of the top layer.
  • the wear course 14 can now be placed on the netting 13, just like the wear blanket of the road, usually consisting of 6-10 sized fine gravel, stone sand and elastomerized bitumen, in which the gravel represents 60%, sand 34% and bitumen 6% of the total weight of the mix.
  • the wear course 14 is cut and removed with known equipment at its two ends thus creating two strips 15 accross the road which will be filled with pure elastomerized bitumen.
  • any thermal and mechanical deformation of the two bridge elements 1, 2 will be absorbed by the lower viscoelastic layer 12 and by the two lateral strips 15, whereas the more rigid and stronger wear course 14 (having a lower bituminous binder content) is retrained by the netting 13 and, since virtually no stresses are acting on this lower layer, it will have a life as long as the wear course of the featheredge.
  • elastomerized bitumen is used in this invention, i.e. bitumen batched with an elastomer instead of using pure bitumen as is common use. It is clear that elastomerized bitumen has better viscoelastic properties than pure bitumen and this is the reason why it is used in the expansion joint.
  • the lower layer 12 of the joint has a 25% elastomerized bitumen content , which is a considerable amount, apt to provide good malleability and excellent adjustment to strain.
  • the wearing course 14 contains only 6% elastomerized bitumen in weight, which is the same ratio of pure non elastomerized bitumen normally used in road wearing courses, so that, according to this invention, the surface layer of the expansion joint has the same wear resistance as the normal wearing course and is also sufficiently rigid.
  • this rigidity will allow for small bending stresses to compensate for small vertical or rotary movements of the end sections of the bridge elements 1, 2 caused by live loads along the spans (for instance cantilevered with respect to the supporting piers).
  • the joint can be successfully used at lower maintenance cost for single span or multi-span bridges with any roadway type and especially for heavy traffic speedways.
  • the joint in question can be located between bridge bays as well as between end bays and the abutments of the bridge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Paving Structures (AREA)
EP90109429A 1990-02-27 1990-05-18 Dehnungsfuge zwischen zwei benachbarten Strassenbrückenelementen Withdrawn EP0444236A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1242990 1990-02-27
IT12429A IT1238595B (it) 1990-02-27 1990-02-27 Giunto di dilatazione tra due elementi contigui di un ponte per stradaveicolare.

Publications (1)

Publication Number Publication Date
EP0444236A1 true EP0444236A1 (de) 1991-09-04

Family

ID=11140057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109429A Withdrawn EP0444236A1 (de) 1990-02-27 1990-05-18 Dehnungsfuge zwischen zwei benachbarten Strassenbrückenelementen

Country Status (2)

Country Link
EP (1) EP0444236A1 (de)
IT (1) IT1238595B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696764A1 (fr) * 1992-10-14 1994-04-15 Colas Sa Masse de remplissage pour joint viscoélastique continu pour ouvrage d'art en béton et joint viscoélastique comprenant cette masse de remplissage.
EP0687773A1 (de) * 1994-06-17 1995-12-20 Autostrade Concessioni E Costruzioni Autostrade S.P.A. Wasserfreie viskoelastische Pufferfuge
WO1996024726A1 (en) * 1995-02-09 1996-08-15 Prismo Limited Asphaltic plug expansion joint with flexible nosing
CN1038056C (zh) * 1992-05-18 1998-04-15 西安公路学院 双组分弹性混合料桥梁伸缩缝装置
CN108487056A (zh) * 2018-05-22 2018-09-04 杭州溯真科技有限公司 一种桥梁伸缩缝装置
CN113026545A (zh) * 2021-03-19 2021-06-25 杨艳 一种道路工程无缝桥面伸缩缝结构及其施工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7007249A (en) * 1970-05-20 1971-07-26 Fibre reinforced asphalt for road making
GB1318805A (en) * 1971-10-08 1973-05-31 Invernizzi L Expansion joints in pre-stressed reinforced concrete bridges
DE2826960A1 (de) * 1978-06-20 1980-01-03 Strabag Bau Ag Deckschicht fuer verkehrsflaechen
GB2065203A (en) * 1979-12-17 1981-06-24 Advanced Sealants Ltd Flexible road surfacing
GB2218437A (en) * 1988-03-17 1989-11-15 Sho Bond Const Expansion joint for roads and bridges

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7007249A (en) * 1970-05-20 1971-07-26 Fibre reinforced asphalt for road making
GB1318805A (en) * 1971-10-08 1973-05-31 Invernizzi L Expansion joints in pre-stressed reinforced concrete bridges
DE2826960A1 (de) * 1978-06-20 1980-01-03 Strabag Bau Ag Deckschicht fuer verkehrsflaechen
GB2065203A (en) * 1979-12-17 1981-06-24 Advanced Sealants Ltd Flexible road surfacing
GB2218437A (en) * 1988-03-17 1989-11-15 Sho Bond Const Expansion joint for roads and bridges

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038056C (zh) * 1992-05-18 1998-04-15 西安公路学院 双组分弹性混合料桥梁伸缩缝装置
FR2696764A1 (fr) * 1992-10-14 1994-04-15 Colas Sa Masse de remplissage pour joint viscoélastique continu pour ouvrage d'art en béton et joint viscoélastique comprenant cette masse de remplissage.
BE1006676A5 (fr) * 1992-10-14 1994-11-16 Colas Sa Masse de remplissage pour joint viscoelastique continu pour ouvrage d'art en beton et joint viscoelastique comprenant cette masse de remplissage.
CH684698A5 (fr) * 1992-10-14 1994-11-30 Colas S A Colas S A Masse de remplissage pour joint viscoélastique continu pour ouvrage d'art en béton et joint viscoélastique comprenant cette masse de remplissage.
ES2081753A1 (es) * 1992-10-14 1996-03-01 Colas S A Y Colas S A Masa de relleno para junta viscoelastica continua para obra de fabrica de hormigon y junta viscoelastica que comprende ciha masa de relleno.
EP0687773A1 (de) * 1994-06-17 1995-12-20 Autostrade Concessioni E Costruzioni Autostrade S.P.A. Wasserfreie viskoelastische Pufferfuge
WO1996024726A1 (en) * 1995-02-09 1996-08-15 Prismo Limited Asphaltic plug expansion joint with flexible nosing
CN108487056A (zh) * 2018-05-22 2018-09-04 杭州溯真科技有限公司 一种桥梁伸缩缝装置
CN108487056B (zh) * 2018-05-22 2024-05-14 杭州溯真科技有限公司 一种桥梁伸缩缝装置
CN113026545A (zh) * 2021-03-19 2021-06-25 杨艳 一种道路工程无缝桥面伸缩缝结构及其施工方法

Also Published As

Publication number Publication date
IT1238595B (it) 1993-08-18
IT9012429A0 (it) 1990-02-27
IT9012429A1 (it) 1991-08-27

Similar Documents

Publication Publication Date Title
US4668548A (en) Integrally-anchored fiber-reinforced concrete overlays and surfacings and method of making same
US3932051A (en) Highway construction
US4022538A (en) Expansion joint seal
US4098047A (en) Joint sealing method
AT391499B (de) Eisenbahnoberbau, insbesondere fuer schienenfahrzeuge mit sehr hohen fahrgeschwindigkeiten
RU2353724C1 (ru) Бетонное дорожное полотно для рельсовых транспортных средств
CA1075945A (en) Elastic joint spanning waterstop element
EP0444236A1 (de) Dehnungsfuge zwischen zwei benachbarten Strassenbrückenelementen
CS265399B1 (en) Dilatation bridge closing device and method for producing thereof
KR102044882B1 (ko) 차세대 포장 단면과 향상된 내구성을 갖는 도로 포장 방법
CN113737646B (zh) 预制uhpc板-波型钢叠合式桥面连接结构及施工方法
Ghafoori et al. Bridge deck asphalt plug joints: problems and solutions
CN210529482U (zh) 一种桥梁伸缩缝排水结构
KR100408895B1 (ko) 교량의 신축이음 시공방법
KR100659374B1 (ko) 철도교량에 설치되는 조립식 교량신축이음장치
KR200245123Y1 (ko) 누수 방지를 위한 신축이음
O’Flaherty Introduction to pavement design
CN221235841U (zh) 一种沥青道路路面仿冒水修补结构
Mander Use of resins in road and bridge construction and repair
CN221589257U (zh) 简支梁桥面连续防水结构
RU2043458C1 (ru) Мостовое сооружение, ограждение насыпи ездового полотна мостового сооружения, сопряжение мостового сооружения с насыпью подхода и арматурный каркас балки мостового сооружения
Halvorsen et al. Joints in concrete construction
CN114875740A (zh) 一种市政防积水道路结构及其施工方法
WO1996024726A1 (en) Asphaltic plug expansion joint with flexible nosing
Šimun et al. Modular expansion joints for joint openings in the road

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR LI LU NL SE

17P Request for examination filed

Effective date: 19911207

17Q First examination report despatched

Effective date: 19930701

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19931103