EP3394344A1 - Dispositif d'aide au support de barrières de sécurité routière - Google Patents

Dispositif d'aide au support de barrières de sécurité routière

Info

Publication number
EP3394344A1
EP3394344A1 EP16845315.7A EP16845315A EP3394344A1 EP 3394344 A1 EP3394344 A1 EP 3394344A1 EP 16845315 A EP16845315 A EP 16845315A EP 3394344 A1 EP3394344 A1 EP 3394344A1
Authority
EP
European Patent Office
Prior art keywords
support
aid
road
road safety
safety barriers
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Withdrawn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
EP16845315.7A
Other languages
German (de)
English (en)
Inventor
Massimo Cucchietti
Ottavia CALAMANI
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.)
Tubosider SpA
Original Assignee
Tubosider SpA
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 Tubosider SpA filed Critical Tubosider SpA
Priority claimed from PCT/IT2016/000302 external-priority patent/WO2017109808A1/fr
Publication of EP3394344A1 publication Critical patent/EP3394344A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0476—Foundations
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0461—Supports, e.g. posts

Definitions

  • the present invention concerns a device of aid to the support of road safety barriers.
  • the invention relates to the field of road safety and in particular to the maintenance within the roadway of vehicles that are out of control and that are heading out of the way.
  • road safety barriers are passive restraint and safety devices adapted to maintain the vehicles within the road and/or the carriageway, with the aim to improve safety by reducing the effects of accidents due to skidding.
  • a road safety barrier can be realised with a guardrail system or with the so-called New Jersey barriers, depending on the specific cases regulated by legislation.
  • the term road safety barriers will refer specifically to the barriers of the guardrail type, constituted by a plurality of posts vertically fixed into the ground, generally made of metallic material or wood, and connected by bi- wave or tri-wave tapes of metal material or by wooden beams.
  • any type of road safety barrier transfers to the ground on which it is anchored all or part of the pressure due to the impact of colliding vehicles.
  • a ground is appropriate when it provides, with null or controlled displacements at the basis, the elastic behavior of the barrier posts, or when, collapsing, it provides the engagement of the plastic hinge of the posts at a depth of piling predetermined by the designer of the barrier, or better, when owing the initial type tests (ITT) of the device, the depth of piling detected during testing with live impact tests.
  • ITT initial type tests
  • the texture of the ground is higher, because the testing laboratories are equipped with grounds having high quality particle size and as compacted as to provide mechanical performance above average even for a very good road, and in fact at the test fields operation are conducted with grounds having a deformation modulus of 70-90 MPa, while for a good road values are reached of the ground deformation modulus comprised between 40-50 MPa.
  • the object of the present invention is therefore to provide a device of aid to the support of road safety barriers that can overcome the limits of road safety barriers according to the prior art and to obtain the technical results previously described.
  • a further object of the invention is that said device can be manufactured with substantially limited costs, both as regards the production costs and as regards the management costs.
  • Not the last object of the invention is to propose a device of aid to the support of road safety barriers which is simple, safe and reliable.
  • a device of aid to the support of road safety barriers which comprises a support element of contrasting backing of a post of a road safety barrier, said support element not being fixed to said post and being dimensioned so as to withstand in the elastic range to the thrust exerted by said post and being integral and/or coupled with at least one clamp, preferably two clamps, adapted to extend on the road pavement, a fastening system to said road pavement being coupled to said bracket.
  • said support element can be selected among one or more plates, ropes, cables or steel rods, or mixed systems with ropes, cables and rods.
  • said fastening system comprises: glues and/or chemical binders applied to the lower surface of said at least one clamp, and/or fixing poles apt to pass through said at least one clamp and penetrate said road pavement, and/or foundation micropiles.
  • said fastening system may further comprise at least one gaffed profile, apt to overlap to said at least one clamp and penetrate said road pavement.
  • said fastening system may further comprise a distributor element, apt to overlap to said at least one clamp and to form a support for said glues and/or chemical binders, said fixing poles and/or said foundation micropiles and said gaffed profiles.
  • said device of aid to the support of road safety barriers may further comprise a shaped element, apt to couple with said support element, encircling said post.
  • the effectiveness of the device of the present invention that, in the event of an impact, improves the resistance that the ground opposes the thrust exerted by the barrier posts, transferring the totality or part of the strains to the opposite road platform, rather than to the ground constituting the road margin.
  • the device of aid to the support of road safety barriers according to the present invention appropriately dimensioned and properly fixed to the road pavement, compensates to this kind of lack, serving as auxiliary anchor, so as to allow the posts to operate as expected, according to the provisions of the barrier manufacturer.
  • the device of aid to the support of road safety barriers according to the present invention is compatible with any type of post. Its use does not involve any adaptation of the post itself, such as the realisation of holes, welds, special processing.
  • the device of aid to the support of road safety barriers according to the present invention is constructed so as to allow the application even after the installation of the barrier. It is therefore recommended for upgrading works on existing plants, without having to act on road barrier, dismounting it, but also for new installations, as a reinforce for the posts before piling them in a ground with mechanical characteristics lower than necessary.
  • FIG. 1 shows a perspective view of a device of aid to the support of road safety barriers according to a first embodiment of the present invention
  • Figure 2 shows an exploded perspective view of the device of Figure 1 ,
  • FIG. 3 shows a perspective view of a device of aid to the support of road safety barriers according to a second embodiment of the present invention
  • FIG. 4 shows an exploded perspective view of the device of Figure 3
  • FIG. 5 shows a perspective view of a device of aid to the support of road safety barriers according to a third embodiment of the present invention
  • FIG. 7 shows a perspective view of a device of aid to the support of road safety barriers according to a fourth embodiment of the present invention
  • FIG. 9 shows a perspective view of a device of aid to the support of road safety barriers according to a fifth embodiment of the present invention.
  • FIG. 11 shows a perspective view of a device of aid to the support of road safety barriers according to a sixth embodiment of the present invention
  • Figure 12 shows an exploded perspective view of the device of Figure 11 .
  • FIG. 13 shows a perspective view of a device of aid to the support of road safety barriers according to a seventh embodiment of the present invention.
  • the support element 11 is not secured to the post 1 and is dimensioned so as to withstand in the elastic range to the thrust exerted by the post 1.
  • clamps 12 are connected to the support element 11.
  • the clamps 12 are fixed to the support element 11 by means of a bolted joint, they are dimensioned so as to withstand in the elastic range to the thrust exerted by the support element 11 and are designed to transfer to an anchoring system, consisting of a plurality of fixing poles 13, shear forces only.
  • the clamps 12 have the shape of an L, of variable height, depending on the depth of placing and of the size of the support element 11 , and also of variable length, depending on the distance that separates the support element 11 from the road pavement (B) and on the road pavement surface (B) itself needed to ensure the necessary strength to keep the post 1 in the proper operating position.
  • the clamps 12 (or the support element 11) must have a sufficient to reach the road pavement (B) and must ensure a sufficiently broad support and such as to put the road pavement (B) in the position to withstand the transferred stresses.
  • the fixing poles 13 sink into the road pavement (B) and are dimensioned in relation to the characteristics of the same, so as to allow the correct distribution of the loads.
  • the anchoring system is obtained by using, exclusively, the already said fixing poles 13.
  • the anchorage may be improved by the use of chemical binders, poured/injected into the holes for the fixing poles 13 and, possibly, also on the lower surface of the clamps 12, enabling the surface of the clamps12 to adhere to the road pavement (B) and to contribute to the overall stability of the system by friction.
  • FIG. 3 there is shown a device of aid to the support of road safety barriers according to a second embodiment of the present invention, generally indicated by the reference number 10a.
  • the anchoring system is obtained by combining a plurality of fixing poles 13', a plurality of gaffed profiles 14, to increase the tightness of the system in the presence of less resistant pavings or in the need to operate in tight spaces.
  • the gaffed profiles 14 shall apply to the clamps 12 at appropriate coupling slots 15.
  • the crampons of each gaffed profile 14, of triangular shape, may have different heights in relation to the type of desired depth of piling and functional to the specific application.
  • the anchoring may be improved by the use of chemical binders, poured/injected into the holes for the fixing poles 13' and possibly also on the lower surface of the clamps 12, allowing the clamps 12 to adhere to the road pavement B and to contribute to the overall stability of the system by friction.
  • FIG. 5 there is shown a device of aid to the support of road safety barriers according to a third embodiment of the present invention, generally designated by the reference numeral 10b.
  • clamps 12 are superimposed to a splitter element 16 designed to significantly increase the surface distribution of loads in the road pavement B.
  • the anchoring system is obtained by combining the fixing poles 13' of the gaffed profiles 14, applied to said splitter element 16.
  • the splitter element 16 is designed to increase the number of fixing poles 13' of the gaffed profiles 14 usable to ensure the stability of the system.
  • the gaffed profiles 14 can be applied both to the clamps 12 and to the splitter element 16, making use of appropriate coupling slits 17.
  • the anchorage may be improved by the use of chemical binders, poured/injected into the holes for the fixing poles 13', and possibly also on the lower surface of the clamps 12 and splitter element 16, allowing them to adhere to the road pavement B and to contribute to the overall stability of the system by friction.
  • FIG. 7 there is shown a device of aid to the support of road safety barriers according to a fourth embodiment of the present invention, generally designated by the reference numeral 10c.
  • the device of aid to the support of road safety barriers according to the present invention can be used by making use of a shaped element 18 in addition to the element 11.
  • the function of said shaped element 18 is to harness the post 1 , raising the strength capacity of the support system represented by the element 11.
  • the element 11 and the shaped element 18 match by working with contrast on the post 1 and are made integral with each other by means of bolted joint.
  • FIG. 9 there is shown a device of aid to the support of road safety barriers according to a fifth and a sixth embodiment of the present invention, generally designated by the reference numeral 10d and 10e.
  • FIG. 13 there is shown a device of aid to the support of road safety barriers according to a seventh embodiment of the present invention, generally designated by the reference numeral 10f.
  • This embodiment may be necessary in the presence of little resistant pavings and differs from that shown with reference to Figures 7 and 8 for the fact to strengthen the anchoring system by resorting to the foundation micropiles 19, obtained by coring the road pavement B and introducing into the same a special deep anchorage system, made of steel or concrete.
  • the fixing poles 13 can be adapted to fit in the foundation micropiles 19.
  • the device of aid to the support of road safety barriers according to the present invention is a device that applies to posts piled in the ground A, whose functional peculiarity is that of transferring the stresses generated by the post, directly to the opposite road pavement B, instead of the ground A constituting the road margin.
  • the road pavement B may be constituted by a mixture of aggregates and binders of (flexible) bituminous conglomerate, (semi-rigid) cemented bituminous and mixed conglomerate, (rigid) concrete slabs, however, it does not exclude the possibility of use of the device of aid to the support of road safety barriers according to the present invention also with artifacts to the road pavement B, provided they are comparable to it as far as mechanical ability and durability is concerned.
  • the device of aid to the support of road safety barriers according to the present invention must be dimensioned in all its parts to withstand the entire load transferred from the post, until reaching the plastic collapse of the post itself, according to the design specifications.
  • the device of aid to the support of road safety barriers according to the present invention does not involve any action on the post and the barrier to which it applies.
  • it is not necessary to remove the post nor disassemble parts of the barrier. No processes must be made on the same post, which would alter its original configuration (holes, welds etc. ).
  • the device of aid to the support of road safety barriers according to the present invention can also be simply leaning against the post, without the need to use any kind of fastening (bolted, riveted, welded, with chemical binders) between post and device.
  • the support is obtained by means of an element 11 , of variable thickness, which may also have shapes other than rectangular, and be alternatively realised with shaped or box-shaped profiles.
  • the post 1 can be harnessed to the device of aid to the support of road safety barriers according to the present invention, thus allowing the device to support it.
  • the shaped element 18 exerts a pressure on the post 1 that prevents it from slipping down.
  • the shaped element 18 has a shaped profile that can assume the characteristic "omega" shape, but does not exclude the possibility to realise it with geometries different from this, safeguarding its operation under pressure.
  • the clamps 12 may have welded thicknesses and/or side stiffening flaps.
  • the side flaps of the clamps 12 may have a jagged shape to increase the tightness of the clamps 12 to the road pavement B.
  • the anchor clamps 12 can be coupled with one or more splitter plates 16, having variable thickness, length and width, of rectangular ofr different shape, useful for widening the extension of the contact surface between the device of aid to the support of road safety barriers and the road pavement B.
  • the splitter plates 16 may have welded thicknesses and/or side stiffening flaps.
  • the side flaps 16 of the splitter plates can assume a serrated shape to increase the tightness of each splitter element 16 to the road pavement B.
  • clamps 12 or the clamps 12 and the shaped element 18 or the system of support element 11 and clamps 12, or of support element 11 , shaped element 18 and clamps 12, or of support element 11 , clamps 12 and element 16 or splitter support element 11 , shaped element 18, clamps 12 and splitter element 16 by adopting, in partial or exclusive way, also ropes, also cables or steel rods, mixed systems even with ropes, cables and rods combined to the traditional components in steel.
  • the device of aid to the support of road safety barriers anchors the road pavement B using a combined fastening system that, if necessary, sinks into road pavement B one or more poles/nails/anchor dowels 13, 13' and/or gaffed profiles 14 and makes use of chemical binders, cement mortars, abrasive surfaces in order to improve the adhesion of the poles 13, 13', of the clamps 12 and of the splitter plates 16 to the road pavement B.
  • the fixing poles 13, 13' are sharp rods with a side surface that is smooth or machined designed to be piled in the road pavement B. If desired, the fixing poles may be replaced by nails and/or anchor screws, or by anchor dowels, mechanical and chemical, of various kinds and sizes.
  • the gaffed profiles 14 are obtained from a "U" profile shaped with wings modeled as triangle to take the classic shape of the crampons.
  • the profile can have variable dimensions, in particular the height of the triangular crampons may change in function of the requirements (from a few millimeters to several centimeters), as well as their shape, that may be in the shape of triangle or trapezoid, and their perimeter can be smooth or sawed.
  • the clamps 12 and the splitter element 16 have circular and/or slotted holes for the engagement of the fixing poles 13, 13' and also can be realised by providing lateral offsets 15 and slots 17, suitable to accommodate the gaffed profiles 14.
  • the device of aid to the support of road safety barriers according to the present invention can also make use of deep foundation by means of foundation micropiles 19.
  • the fastening system is then fixed to said foundation micropiles 9.
  • the foundation micropiles 9 are made by coring the road pavement B and fixing in it posts made of steel having a different shape or injecting concrete.
  • the device of aid to the support of road safety barriers according to the present invention is rolled directly to the road pavement B, but can also be inserted into the same.
  • the device of aid to the support of road safety barriers according to the present invention is constituted by steel components, but do not exclude the use of different materials such as steel rods, cables made of stranded steel wire, carbon fiber, composite materials, stainless components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

La présente invention concerne un dispositif (10, 10a, 10b, 10c, 10d, 10e, 10f) d'aide au support de barrières de sécurité routière caractérisé en ce qu'il comprend un élément de support à soutien de contraste (11) d'un montant (1) d'une barrière de sécurité routière, ledit élément de support (11) n'étant pas fixé audit montant (1) et étant dimensionné de manière à résister dans la plage élastique à la poussée exercée par ledit montant (1) et faisant corps et/ou étant accouplé à au moins un élément de serrage (12), apte à s'étendre sur la chaussée (B), un système de fixation à ladite chaussée (B) étant accouplée audit élément de serrage (12).
EP16845315.7A 2015-12-21 2016-12-21 Dispositif d'aide au support de barrières de sécurité routière Withdrawn EP3394344A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB20009467 2015-12-21
PCT/IT2016/000302 WO2017109808A1 (fr) 2015-12-21 2016-12-21 Dispositif d'aide au support de barrières de sécurité routière

Publications (1)

Publication Number Publication Date
EP3394344A1 true EP3394344A1 (fr) 2018-10-31

Family

ID=63638553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16845315.7A Withdrawn EP3394344A1 (fr) 2015-12-21 2016-12-21 Dispositif d'aide au support de barrières de sécurité routière

Country Status (1)

Country Link
EP (1) EP3394344A1 (fr)

Similar Documents

Publication Publication Date Title
EP1985759B1 (fr) Dalle de béton
US9683339B2 (en) Portable roadway warning device
US11149384B2 (en) Precast concrete panel patch system for repair of continuously reinforced concrete
US20110293366A1 (en) Post
US9822497B2 (en) Treating particulate and connecting slab portions
JP5514846B2 (ja) 簡易覆工板
US9234323B2 (en) Post footing
KR101633431B1 (ko) 기존 교량 콘크리트와 구조적 일체화를 확보한 교량 확장형 인도 및 이의 시공방법
WO2017109808A1 (fr) Dispositif d'aide au support de barrières de sécurité routière
KR101544985B1 (ko) 소켓식 프리캐스트 콘크리트 패널 및 이를 이용한 포장공법
JP6423899B2 (ja) 保線作業用通路
EP3394344A1 (fr) Dispositif d'aide au support de barrières de sécurité routière
KR20150010421A (ko) 캡빔 구조체
JP3971504B2 (ja) 仮設土留め構造および仮設土留め方法
KR100975673B1 (ko) 도로 변에 시공되는 확장 자전거 도로 및 이 시공 방법
KR101683685B1 (ko) 도로경계블록
KR101183926B1 (ko) 다용도 네일링 앵커 및 그 시공방법
KR101516777B1 (ko) 흙막이 벽체와 띠장을 결합하는 구조체
KR101010660B1 (ko) 안정성 확보를 위한 절성토사면 보강공법
EP2447421B1 (fr) Connection de chaussée à une surface
KR101596245B1 (ko) 부력앵커의 시공방법
Falk Innovative high capacity anchors to secure a motorway in Austria
KR101854848B1 (ko) 친환경 토석류 피해저감 구조물용 고정체 및 이의 설치방법
JP6128447B2 (ja) 堤防道路用ガードレール設置工法
KR20190087834A (ko) 교량 단부 확장 공법

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

17P Request for examination filed

Effective date: 20180711

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
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: 20190219