Roadway barrier
    1.
    发明授权
    Roadway barrier 失效
    道路障碍

    公开(公告)号:US5054954A

    公开(公告)日:1991-10-08

    申请号:US475019

    申请日:1990-02-05

    IPC分类号: E01F15/08

    摘要: An elongated roadway barrier deformable under impact to redirect a vehicle striking the barrier. The barrier includes a plurality of panels arranged in parallel, spaced rows to define a filler cavity. A filler material is disposed in the cavity to support the barrier and to provide a medium for dissipating impact energy. The filler material is stabilized by a bonding agent and has a shear strength of at least about 30 psi and a compressive strength less than about 1200 psi.

    摘要翻译: 在冲击下可变形的细长的道路障碍物,以重新定向撞击障碍物的车辆。 屏障包括平行布置的多个面板,间隔开的行以限定填充腔。 填充材料设置在空腔中以支撑阻挡层并提供用于消散冲击能量的介质。 填充材料通过粘结剂稳定,并具有至少约30psi的抗剪强度和小于约1200psi的抗压强度。

    Barrel crash cushions
    2.
    发明授权
    Barrel crash cushions 失效
    桶式碰撞垫

    公开(公告)号:US6126144A

    公开(公告)日:2000-10-03

    申请号:US804284

    申请日:1997-03-03

    IPC分类号: E01F15/14 A01K3/00

    CPC分类号: E01F15/146

    摘要: Apparatus and methods are described relating to barrel crash cushions which readily collapse when impacted from a substantially end-on direction, and are more capable than conventional designs of substantially redirecting vehicles impacting from non-end-on directions and reducing the chance of these vehicles tearing through the crash cushion. The described configurations also substantially reduce the harm associated with "coffin corner" impacts through a structurally reinforced portion that increases the ability of the barrel cushion to withstand impacts from directions other than substantially end-on.In some exemplary embodiments, the structural reinforcement is provided by a telescoping bracket assembly which surrounds some of the barrels of the crash cushion. In another embodiment, the reinforcement is provided by a plurality of interconnected cable sleeves which are carried on cables disposed along the longitudinal sides of the crash cushion to form a linear brace. In still other embodiments, a cushion is constructed using barrels having differing resistances to crushing. The barrels having the greatest resistance are placed along the longitudinal sides close to the fixed structure so that a vehicle impacting the cushion proximate the fixed structure will have a lesser chance of penetrating the cushion or contacting the fixed structure. These barrels are also surrounded by reinforcing structures which help redirect impacting vehicles back into the stream of traffic.Also described is the use of a downstream base for the crash cushion which has chamfered or reduced upstream corners. The base is placed on the upstream side of the fixed structure if the fixed structure presents angular corners which might pose a coffin corner hazard to impacting vehicles. The base is preferably secured in place and includes preexisting cable anchor points.

    摘要翻译: 描述的装置和方法涉及在从基本上向上的方向受到冲击时容易崩溃的桶式碰撞缓冲器,并且比来自非终端方向的基本上重定向的车辆的传统设计更有能力,并且减少了这些车辆撕裂的机会 通过碰撞垫。 所描述的构造还显着地减少了通过结构增强部分引起的“棺材拐角”冲击的伤害,这增加了套筒衬垫抵抗除了基本上终止之外的方向的冲击的能力。 在一些示例性实施例中,结构加固由围绕碰撞缓冲器的一些桶的伸缩支架组件提供。 在另一个实施例中,加强件由多个相互连接的电缆套管提供,所述多个互连电缆套管沿着沿着碰撞缓冲垫的纵向侧面设置的电缆承载,以形成线性支架。 在另外的其它实施例中,使用具有不同抗压强度的桶来构造衬垫。 具有最大阻力的桶沿着靠近固定结构的纵向侧布置,使得碰撞靠近固定结构的缓冲垫的车辆将具有较小的穿透垫或接触固定结构的机会。 这些桶也被加强结构所包围,有助于将受影响的车辆重新引导回交通流。 还描述了使用具有倒角或减小的上游拐角的碰撞缓冲器的下游基座。 如果固定结构呈角角可能会对撞击车辆造成棺木角危险,则将基座放置在固定结构的上游侧。 基座优选地固定就位并且包括预先存在的电缆固定点。