• 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:
    Road safety barrier, comprising: lower parts (1); upper concrete pieces (2) coupled on the lower pieces (1) and joining means (3, 31) of the successive upper pieces (2) at their opposite ends. The lower parts (1) have an upper surface provided with a longitudinal channel (11) for coupling in the longitudinal direction and with the possibility of limited vertical displacement of a longitudinal appendix (21) protruding from a lower surface of the upper parts (2); the channel (11) and the appendix (21) have similar cross sections and dimensions calculated so that the upper part can make a lateral turn of a certain amplitude, in the event of a vehicle impact, and absorb a significant part of its energy kinetics. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2767023A1
    申请号:ES201831223
    申请日:2018-12-14
    公开日:2020-06-15
    发明作者:Arenal Jokin Rico；Munoz Francisco Ballester；Lopez David Helguera；Leza Marcos Cerezo；Laza Fernando Cavada；Garcia Carlos Thomas；Madrazo Juan Antonio Polanco；Marquinez Jesús Setien
    申请人:Ingecid Investigacion y Desarrollo de Proyectos SL；
    IPC主号:
    专利说明:

    [0002] Road safety barrier.
    [0004] Technique sector.
    [0006] The present invention relates to a road safety barrier comprising a series of precast concrete pieces, of constant cross section, facing each other at their longitudinal ends, and which include: lower pieces that make up a base of the barrier, and pieces upper parts that make up a body of the barrier, said upper parts being joined by connecting means that link the opposite ends thereof.
    [0008] This road safety barrier is located within the field dedicated to the manufacture of protection elements intended to delimit vehicle circulation areas.
    [0010] State of the prior art.
    [0012] At present, the barriers used to delimit vehicle circulation areas are widely known, consisting of concrete pieces that have a constant longitudinal section and that are fixed to the ground or simply rest on it.
    [0014] Within the concrete barriers, the barriers made up of a series of concrete elements that have a single-piece body are known, and the barriers made up of lower pieces that make up a base of the barrier and upper pieces, which rest on the pieces lower, and that make up the body itself of the barrier; being the latter, formed by an upper part and a lower part, those that have a greater relationship with the road safety barrier object of the invention.
    [0016] In the barriers formed by an upper and a lower part, the lower parts, of constant section throughout their length, are arranged in alignment and comprise on their upper surface a protruding longitudinal appendage towards the upper area, while the upper parts have on their lower surface a longitudinal gap for receiving the longitudinal appendage of the lower parts, which allows said upper parts to be mounted and dismounted vertically. Such a barrier can be seen, for example, in patent document US 4059362. The drawback of this barrier, like those made of a single piece of concrete, is that they do not have a suitable structure to deform and absorb significantly the kinetic energy of a vehicle in the event of an impact, so it does not minimize the harmful effects on the injured.
    [0018] Road safety barriers also usually have means of joining the successive pieces at the opposite longitudinal ends, which contributes to maintaining the alignment of the successive pieces.
    [0020] For example, in patent EP 1106738 A2, rigid frames housed in housings provided in the concrete elements of the barrier are used to guarantee the continuity of the pieces of road safety barriers.
    [0022] In the patent EP 0641893 A1, metallic pieces in the shape of an "H" are used as fastening elements whose opposite ends are inserted vertically into some "C" housings defined at the opposite ends of the concrete pieces.
    [0024] These joining elements, like other existing ones on the market, have the drawback that, in case of receiving the barrier a very strong impact, the constituent parts of the barrier become excessively misaligned, and the upper parts can be released from the lower parts of the barrier and said upper pieces breaking through the mounting areas of the joining means.
    [0026] Road protection barriers generally have a protruding part at the bottom or base, the purpose of which is to return the vehicle to the road in the event that the vehicle's wheels hit the barrier at a reduced speed; however, when the vehicle impacts at a higher speed, the wheels exceed this rim or projection of the barrier, impacting the vehicle against the body or vertical element of the barrier.
    [0027] A problem with existing barriers is that, in the event of an impact, it is the vehicle that absorbs the energy, with the consequent high risk of injury to the occupants.
    [0029] An alternative are safety barriers that are not fixed to the ground and that can be moved, absorbing the displacement of the barrier, by impact, part of the vehicle's kinetic energy, reducing the risk of damage to the vehicle occupants. However, the problem posed by the use of these movable barriers is that they cannot be installed in certain areas, for example, in the median of traffic routes since, in the event of an impact, said barrier would invade the opposite lane; and in case these barriers are installed on the sides of the road, it would be necessary to provide a space on each side for the movement of the barrier in the event of an impact.
    [0031] Therefore, in view of the existing background in the state of the art and the existing problem with road safety barriers, the technical problem that arises is the development of a barrier with lower parts that act as a base and that do not move in the event of an impact, and that it has upper parts related to each other and to the base, so that they can absorb a significant part of the kinetic energy of a vehicle in the event of an impact, reducing the severity of the impact, with the consequent reduction of the possible harmful effects to the injured and, consequently, improving the level of containment.
    [0033] Explanation of the invention.
    [0035] The road safety barrier object of this invention, comprising precast concrete pieces that include: lower pieces that make up the base of the barrier, upper pieces that make up a body or vertical element of the barrier and, optionally, some means of union of the successive upper parts, presents some characteristics oriented to increase significantly the absorption of kinetic energy during the impact of a vehicle, by means of a deformation of the structural system of the barrier.
    [0037] Therefore, an objective of the road safety barrier object of the invention is to reduce the severity of the impact (ASI index) and improve the level of containment.
    [0038] The geometric and mechanical characteristics of the set make its behavior against impact present less damaging effects to the injured, compared to the existing concrete barriers in the state of the art.
    [0040] According to the invention, the lower parts of the barrier have an upper surface provided with a longitudinal channel for coupling, in the longitudinal direction and with the possibility of limited vertical displacement, of a longitudinal appendix protruding from a lower surface of the upper parts. ; said longitudinal channel of the lower part and said longitudinal appendix of the upper part presenting similar cross sections and with calculated dimensional differences so that, in the event of a vehicle impact, the upper part maintains its integrity and performs with respect to the vertical median plane of the lower part a lateral rotation of a certain amplitude and limited by the coupling means of the upper and lower parts.
    [0042] In the event that the barrier incorporates means for connecting the upper parts, said means for joining collaborate with the coupling means in limiting the lateral rotation of the upper part with respect to the lower part.
    [0044] The possibility of limited vertical displacement of the upper part with respect to the lower part, together with the also limited lateral rotation of said upper part with respect to the lower part, contributes to improving the kinetic energy absorption of the impact.
    [0046] According to the invention, the longitudinal channel of the lower part and the longitudinal appendage of the upper part comprise, at least: an upper section of general width decreasing towards the lower area, and a lower section of a width between the greatest width and the smaller width of said upper section.
    [0048] This characteristic and the dimensional difference between the longitudinal channel of the lower part and the longitudinal appendage of the upper part allow, in the event of an impact, the lateral rotation, of limited amplitude, of the upper part with respect to the lower part and prevents said Upper part is released vertically from the lower part of the barrier.
    [0049] Preferably, the joining means of the successive upper parts comprise threaded bars, dywidag type, longitudinally mounted in a passive manner in the upper parts of the barrier and which are joined to the successive threaded bars by threaded sleeves; or metal pieces fitted at opposite ends into holes or housings defined for this purpose at opposite ends of said upper parts of the barrier. In the event of an impact, said joining means contribute to limiting the lateral rotation of the upper parts with respect to the lower parts of the barrier, minimizing the risk of breakage or detachment of concrete fragments from the parts of the barrier.
    [0051] In order to avoid these breaks or partial detachment of concrete, it has been planned that both the longitudinal channel of the lower part and the longitudinal appendix of the upper part have their rounded longitudinal edges, also favoring the lateral rotation of the upper part in case impact.
    [0053] Preferably, the lower parts of the barrier are anchored to the ground without the possibility of lateral displacement, thus preventing the parts of the barrier from invading the traffic lanes in the event of an impact.
    [0055] In this invention it has also been provided that the lower pieces and the upper pieces have the same length and that they can be vertically aligned in pairs, that is to say, superimposed; or mutually displaced in the longitudinal direction, in a staggered manner, so that the joints of the lower pieces are displaced in the longitudinal direction with respect to the joints of the upper pieces.
    [0057] The characteristics of the invention will be more easily understood in view of the exemplary embodiment shown in the attached figures described below.
    [0059] Brief description of the content of the drawings.
    [0061] To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, by way of illustration and not limiting, the following has been represented:
    [0063] - Figure 1 shows a perspective view of an embodiment of the road safety barrier, according to the invention.
    [0065] - Figure 2 shows an elevation view of a barrier section in which the upper parts have been partially sectioned to allow the visualization of the joining means that, in this example of embodiment, comprise threaded bars connected by their ends by threaded sleeves.
    [0067] - Figure 3 shows an exploded profile view of a lower part and an upper part of the barrier.
    [0069] - Figure 4 shows a profile view of the barrier shown in Figures 1 and 2, and in which an upper part coupled with a lower part of the barrier can be seen.
    [0071] - Figures 5 and 6 show respective profile views in which the limited rotation of the upper pieces towards one or the other side with respect to the vertical median plane of the lower pieces in case of impact can be observed.
    [0073] - Figure 7 shows a detail in lateral-upper perspective of the ends of two consecutive upper pieces, and in which the fastening of the same by the joining means can be observed when one of them rotates laterally, as shown shown in Figures 5 and 6, because of a side impact.
    [0075] - Figures 8 and 9 show respective elevational views of a barrier according to the invention, in which the upper parts are respectively aligned and misaligned in the longitudinal direction with respect to the lower parts of the barrier.
    [0077] Detailed exposition of embodiments of the invention.
    [0079] As can be seen in Figure 1, the road safety barrier of the invention comprises lower parts (1) and upper parts (2) of concrete, prefabricated and of constant cross-section in the longitudinal direction.
    [0080] As can be seen in Figures 1 and 2, both the lower pieces (1) and the upper pieces (2) are facing each other at their longitudinal ends, forming alignments.
    [0082] The successive upper pieces (2) are related by connecting means, consisting of threaded bars (3), dywidag type , which pass through the inside of said upper pieces (2) and are fixed at their ends by means of threaded sleeves (31). These connection means collaborate with the coupling of the appendix (21) and the channel (11) in limiting the lateral rotation of the upper parts (2) in the event of an impact of a vehicle against the barrier.
    [0084] Each of the lower parts (1) has on its upper surface a longitudinal channel (11) for coupling in the longitudinal direction, as a slider, of a longitudinal appendix (21) that protrudes from the lower surface of the upper parts ( two).
    [0086] The channel (11) and the appendix (21) have similar cross sections and with dimensional differences that facilitate their coupling in the longitudinal direction and limit their possibility of relative displacement in the vertical direction.
    [0088] Figure 3 shows that both the channel (11) of the lower part and the appendix (21) of the upper part have an upper section, referred to as (a) in the appendix (21), of general width decreasing towards the lower zone; and a lower section (b) with a width between the greatest width and the smallest width of the upper section (a).
    [0090] Once the appendix (21) is coupled in the longitudinal direction in the channel (11), the upper part (2) is arranged vertically aligned with the longitudinal median plane (p) of the lower part (3), as shown in the figure 4.
    [0092] Due to the shape and dimensional difference between the channel (11) of the lower parts (1) and the longitudinal appendix (21) of the upper parts (2), when the barrier receives a side impact from a vehicle, the upper part (2) make a turn towards one or the other side with respect to the vertical median plane (p) of the lower part (1), as shown in Figures 5 and 6, which contributes to improving the absorption of kinetic energy from impact and reducing the damaging effects to the injured.
    [0094] The lateral rotation of the upper pieces (2) with respect to the lower pieces (1) is limited by the geometry of the channel (11) of the lower pieces and by the longitudinal appendix (21) of the upper pieces, the possibility also being limited of rotation by the action of the joining means, in this case the threaded bar (3), as shown in figure 7.
    [0096] Through the calculations and tests carried out during the development of this road safety barrier of the present invention, it has been found that, with the indicated characteristics, this barrier absorbs up to 25% of the total kinetic energy of the impact of a vehicle, which It far exceeds the energy absorption capacity of existing concrete barriers on the market.
    [0098] In the embodiment shown, and as can be seen for example in figure 1, the lower parts have the typical cross-section in a generally trapezoidal shape, with lateral ramps (12) that tend to return the vehicle to the road in low speed impact case.
    [0100] Finally, and as shown in Figures 8 and 9, it has been provided that the lower pieces (1) and the upper pieces (2) have the same length, in this embodiment of about 6 meters, and that in the mounting position the upper pieces (2) and the lower pieces (1) can be found aligned vertically in pairs, that is, with their longitudinal ends vertically aligned, as shown in figure 8; or displaced in longitudinal direction, staggered, as shown in figure 9.
    权利要求:
    Claims (6)
    [1]
    1 Road safety barrier, comprising a series of precast concrete pieces, of constant cross section, facing each other at their longitudinal ends, including: lower pieces (1), forming a base of the barrier, and upper pieces ( 2), forming a body of the barrier, supported and coupled on the lower parts (1); characterized in that the lower parts (1) have an upper surface provided with a longitudinal channel (11) for coupling in the longitudinal direction and with the possibility of limited vertical displacement of a longitudinal appendix (21) protruding from a lower surface of the upper parts (two); said longitudinal channel (11) of the lower part (1) and said longitudinal appendix (21) of the upper part (2) presenting similar cross sections, and with dimensional differences calculated so that, in the event of a vehicle impact, the upper part maintains its integrity and performs, with respect to the vertical median plane (p) of the lower part (1), a lateral rotation of a certain amplitude and limited by the coupling means of the upper and lower parts.
    [2]
    2. - Barrier, according to claim 1, characterized in that the longitudinal channel (11) of the lower part (1) and the longitudinal appendix (21) of the upper part (2) comprise, at least: an upper section (a) of general width decreasing towards the lower area, and a lower section (b) of a width between the greatest width and the smallest width of the upper section (a).
    [3]
    Barrier, according to any one of the preceding claims, characterized in that the successive upper parts (2) are related by connecting means (3, 31) that cooperate with the coupling of the appendix (21) and the channel (11) in limiting the lateral rotation of the upper parts (2), in the event of a vehicle hitting the barrier.
    [4]
    Barrier according to any one of the preceding claims, characterized in that the longitudinal channel (11) of the lower part (1) and the longitudinal appendix (21) of the upper part (2) have rounded longitudinal edges.
    [5]
    5. - Barrier, according to any one of the preceding claims, characterized in that the lower parts (1) are anchored to the ground, without the possibility of displacement.
    [6]
    6. - Barrier, according to any one of the preceding claims, characterized in that the lower parts (1) and the upper parts (2) have the same length and are: vertically aligned in pairs; or displaced mutually in longitudinal direction, staggered.
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    同族专利:
    公开号 | 公开日
    EP3896225A1|2021-10-20|
    ES2767023B2|2020-12-21|
    WO2020120820A1|2020-06-18|
    US20220056654A1|2022-02-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS60162105U|1985-03-20|1985-10-28|
    EP0351572A2|1988-06-21|1990-01-24|Hermann Silbernagel|Lane divider|
    WO1993012300A1|1991-12-10|1993-06-24|'societe Commerciale Filtray's'|Traffic divider and traffic dividing system using same|
    ES2527044T3|2007-06-28|2015-01-19|Volkmann & Rossbach Gmbh & Co. Kg|Retention system for refilled or refillable motor vehicles to delimit lanes|
    KR20110131633A|2010-05-31|2011-12-07|주식회사 에코산업|Median strip for road|
    US4059362A|1976-11-24|1977-11-22|Smith Rodney I|Concrete highway traffic barricade having integrally formed coupling|
    JP2525548B2|1993-05-28|1996-08-21|旭コンクリート工業株式会社|Concrete guard fence|
    DE59403623D1|1993-09-07|1997-09-11|Rausch Peter|Concrete baffle|
    FR2801913A1|1999-12-07|2001-06-08|Bernard Abram|DEVICE FOR CONTINUOUS CONSTRUCTION OF ROAD SAFETY BARRIER ELEMENTS|
    EP2511422A1|2011-04-13|2012-10-17|Urbantech S.R.L.|A support base for the fencing of a building yard provided with an integrated guardrail|
    US9644332B1|2016-04-16|2017-05-09|Michael J. Smith|Modular barrier and airfield repair system|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201831223A|ES2767023B2|2018-12-14|2018-12-14|ROAD SAFETY BARRIER|ES201831223A| ES2767023B2|2018-12-14|2018-12-14|ROAD SAFETY BARRIER|
    EP19856445.2A| EP3896225A1|2018-12-14|2019-12-13|Roadway safety barrier|
    US17/413,585| US20220056654A1|2018-12-14|2019-12-13|Roadway safety barrier|
    PCT/ES2019/070844| WO2020120820A1|2018-12-14|2019-12-13|Roadway safety barrier|
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