• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for installation of parapets in existing bridges, including a plurality of metal brackets (3), suitable to support a parapet (2) of reinforced concrete, for bridges, without anchoring and approved, when the displacement of the barrier on them occurs ; said brackets being anchored to the slab forming the board (1) of the bridge, projecting laterally flush with said board, along the same. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2599078A2
    申请号:ES201531127
    申请日:2015-07-29
    公开日:2017-01-31
    发明作者:Domingo GARCIA SAGRADO；Cristina HERNANDO HERNANDEZ；Miguel José SEGARRA MARTINEZ
    申请人:Dragados SA；
    IPC主号:
    专利说明:

    DESCRIPTION

    Device and method for installing prets on existing bridges.

    Object of the invention 5

    The object of the present invention relates to the scope of containment systems in structures, specifically to an auxiliary element for the installation of prets on existing bridges, in which the existing containment system is practically located at the edge of the board. 10

    Background of the invention

    The use of containment systems against falls at different levels has been used since the beginning of the height constructions. These elements 15 were developed while the construction elements were adapted to the needs of the population, so that the technique and materials have followed an advance linked to the new construction methodologies as well as to the development of the motor vehicles that has caused an increase in the loads to be borne by them, which together with the higher speeds developed by said 20 vehicles, produce a much greater kinetic energy than has been historically taken into account. This evolution of the vehicle also led to the increase in road accidents, making society aware of the need to incorporate effective means to reduce it. Thus, road safety has become one of the most important aspects to take into account at the time of designing 25 new roads or conditioning existing ones, being accidents due to falling to different levels one of the most serious.

    Containment systems installed in structures differ from the rest of the safety barriers in that they are an integral part of the structure of the bridge itself, and have a physical connection to it. They must also be designed so as not to have a significant deflection so that they can effectively contain the vehicles that impact them.

    To date, the initial idea for the replacement of prets on existing bridges is to use metal or concrete prets, homologated with their corresponding
    CE marked and with installation and anchor conditions that often do not correspond to those existing in the structure.

    The use of metal railings, forces the board to be enlarged, not only to ensure the anchoring of the posts, but because it belongs to the group of flexible barriers 5, deforming when a vehicle hits them, you have to have a sufficient space after the parapet to allow deformation thereof without the accompanying vehicle incurring additional or more serious dangers. In the case of existing structures, it may be that the boards do not have such space, so it is forced to expand them, with the purpose of achieving the necessary dynamic deflection distance according to the regulations.

    On the other hand, the execution of the anchors of these metal or concrete prets to the existing boards entails several activities of high cost and risk that need a longer execution time and in many cases there is also not enough singing to implement said anchorage. To all this we must add the studies of necessary efforts in the existing structure, due to the weight of the new parapet and the actions that can be transmitted to it.

    Description of the invention

    This invention therefore arises from the need to reduce the problem in the replacement of prets on existing bridge panels. The present invention provides existing bridges with the possibility of installing pretables with CE marking without the need for board extensions or anchors thereto, correcting the main problem in cases of replacement of prets. For this, the system is based on the placement of approved reinforced concrete prets not anchored to the board which does not imply any type of innovation, solving the problem of the need to expand the section of the board through the innovative idea of placing profiles metallic, which anchored transversely to the edge of the board, 30 form a bracket capable of supporting the transverse displacement of the concrete barrier in the event of a vehicle impact. In this way, the displacement in case of a crash is sufficient to dissipate the energy, without at any time the wheels of the vehicle being outside the dashboard.
     35
    With this system you get:
     Carrying out repair and conservation works in the minimum time necessary, significantly reducing the impact on existing traffic.
     Reduction of execution costs, avoiding the realization of costly activities to elaborate and reducing the cost of material necessary for the achievement of the work. 5
     Reduction of occupational hazards intrinsic to work in high areas, since the activities to be undertaken in the edges of the board are minimized.
     Compliance with existing regulations in the European Union through the use of pretables with CE marking. 10
     Increase the safety against impact of all road users thanks to the use of standardized concrete barriers, which reduce the consequences of motorist accidents and help the recovery of the vehicle's trajectory.
     fifteen
    Description of the figures

    To complement the description that is being made and in order to facilitate the understanding of the features of the invention, a set of drawings is attached to the present specification in which, as an illustration and not as a limitation, the following has been represented :

    Figures 1 and 2 show a side elevational and plan view of the installation device of prets of the present invention.
     25
    Figures 3 and 4 represent the displacement produced in the barrier that forms the parapet (2) after receiving an impact.

    Preferred Embodiment of the Invention
     30
    The device object of the present invention provides for the placement of a reinforced concrete wall (2), homologated and metal brackets (3) that support the concrete modules that make up the parapet (2) to allow the movement of the barrier, in case of an accident, which are anchored transversely in the slab that forms the board (1) of the bridge, protruding laterally flush 35 with said board throughout its length.

    In the example shown, the anchoring of the brackets (3) to the board (1) is constituted by steel profiles that are welded to a plate (4) in the form of an "L" of steel, which is anchored to the slab of the board by bolts (5). The brackets (3) preferably consist of a double "T" steel profile. 5

    With said brackets (3), the distance for dynamic deflection of the concrete barrier (2) given by the standardized tests is achieved, in case of an accident. The type of module used responds to a strong impact with the displacement that must be absorbed by said brackets (3). The metal profiles of a length of 0.60 m support the weight of the displaced concrete blocks, so that the prefabricated modules (2) occupy the space between brackets, preventing the vehicle from leaving the dashboard.

    The method for installing prets of the invention provides the execution phases to be carried out in the following existing viaduct and bridge structures:
     Withdrawal of inefficient prets.
     Execution of metal overhang formed by brackets (3) of metal profiles over the entire length of the existing bridge; Y
     Installation of a reinforced concrete bridge (2) parapet system, 20 without anchoring and homologated.

    The designed solution has been able to adapt the board to the approved parapet in a simple way, and also allows the continuity of the expansion joints of the structures in which they are located, so that they do not modify the natural movements of the constituent elements according to the external temperatures

    Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply alteration of the essential features of the invention claimed below:
    权利要求:
    Claims (5)
    [1]

    1.- Device for installation of prets on existing bridges, comprising: 5
     a reinforced concrete parapet (2), for bridges, without anchoring and approved; Y
     a plurality of metal brackets (3), anchored transversely to the edge of the bridge board (1), protruding laterally flush with said board along it, suitable for supporting the concrete modules that make up the parapet (2) when it produces the displacement 10 of the barrier being located in a point of the light of said brackets (3).

    [2]
    2. Device according to claim 1, characterized in that the brackets (3) are constituted by a steel profile that is welded to a plate (4) in "L", which in turn is anchored to the slab of the board (1) of the bridge by bolts (5). fifteen

    [3]
    3. Device according to the preceding claims, characterized in that the brackets (3) are constituted by a steel profile in double "T".

    [4]
    4. Device according to the preceding claims, characterized in that the 20 brackets (3) have a length equal to or slightly greater than the width of the prefabricated modules that make up the parapet (2), so that when they move they are placed in a point of light of said brackets.

    [5]
    5.- Method for installing prets on existing bridges, which includes the following execution phases:
    a) withdrawal of existing inefficient prets;
    b) metal cantilever execution over the entire length of the existing bridge, formed by brackets (3) anchored to the board (1) and flush with it; Y
    c) installation of an approved pretil system (2), of reinforced concrete 30 for bridges and without anchorage.

    类似技术:
    公开号 | 公开日 | 专利标题
    ES2599078B1|2017-12-26|DEVICE AND METHOD FOR INSTALLING PRETILES IN EXISTING BRIDGES.
    ES2344462T3|2010-08-27|CONCRETE FOOTWEAR FOR VEHICLES ON RAILS.
    ES2330772T3|2009-12-15|TRAFFIC GUIDE DEVICE.
    JP2015038308A|2015-02-26|Bridge guard fence strut for replacement in existing wheel guard concrete
    PT1645691E|2007-06-18|Transition structure
    KR100602010B1|2006-07-19|Guard rail using road
    KR20090049900A|2009-05-19|Supporting structure of post
    JP5688039B2|2015-03-25|Partition structure
    RU175278U1|2017-11-29|RACK BARRIER OF ROAD PROTECTION
    CN205839575U|2016-12-28|A kind of swivel bridges supporting apparatus
    KR101065750B1|2011-09-19|Preventive measure in falling rock of a high strength module
    JP5688040B2|2015-03-25|Partition structure
    RU160344U1|2016-03-20|REINFORCED REINFORCED REINFORCED CONCRETE FACING
    KR20110087877A|2011-08-03|Support structure for constructed pavement and bikeway, and constructed pavement including the same
    JP5829901B2|2015-12-09|Guard fence support and support for bridge
    KR100864461B1|2008-10-22|Apparatus preventing falling down of road information facilities
    CN211079913U|2020-07-24|Upright post inserted type bridge combined guardrail structure
    KR101388253B1|2014-04-24|Base structure of road facility
    ES2831328T3|2021-06-08|Support structure for a dynamic barrier to protect against falling rocks
    ES2598882A2|2017-01-30|System of clamping of beacons to traviesas of ways of railroad |
    CZ28041U1|2015-03-31|Retention and sound-protecting system, especially for bridges and optionally roads yl
    KR100549495B1|2006-02-07|Shock-absorbing structure for breast wall
    KR20220027415A|2022-03-08|Bearing Strength Reinforcement Structure Of Guardrail
    ES2554555B1|2016-09-27|Adjustable tubular metal structure for porticos, banners and the like
    CN105951997B|2018-12-25|Greatly across the double slope concrete frames of prestressing force
    同族专利:
    公开号 | 公开日
    ES2599078R1|2017-03-14|
    ES2599078B1|2017-12-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN109162202A|2018-10-30|2019-01-08|湖南大学|A kind of light-duty assembled anticollision barrier component and installation method|
    CN109763424A|2019-01-08|2019-05-17|中冶南方工程技术有限公司|A kind of full precast concrete anticollision barrier and construction method|FR2086626A5|1970-04-03|1971-12-31|France Etat|
    FR2314303B1|1975-06-12|1979-02-16|Moreau Joel|
    FR2418837B1|1978-03-03|1982-01-29|Cocude Rene|
    ES2301730T3|2002-07-12|2008-07-01|SPIG SCHUTZPLANKEN-PRODUKTIONS-GESELLSCHAFT MBH & CO.KG|VEHICLE RETENTION SYSTEM.|
    法律状态:
    2017-12-26| FG2A| Definitive protection|Ref document number: 2599078 Country of ref document: ES Kind code of ref document: B1 Effective date: 20171226 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201531127A|ES2599078B1|2015-07-29|2015-07-29|DEVICE AND METHOD FOR INSTALLING PRETILES IN EXISTING BRIDGES.|ES201531127A| ES2599078B1|2015-07-29|2015-07-29|DEVICE AND METHOD FOR INSTALLING PRETILES IN EXISTING BRIDGES.|
    [返回顶部]