摘要:
A blast resistant barrier system includes a base, a support structure extending outward from the base, a protective barrier that is pivotally coupled with the support structure at a first point of the protective barrier, and a shear pin that is configured to couple a second point of the protective barrier to the support structure so as to constrain rotation of the protective barrier relative to the support structure. The shear pin is configured to shear upon a threshold amount of force being applied to a face of the protective barrier. Once the shear pin shears, the protective barrier is permitted to rotate relative to the support structure about the first point.
摘要:
A barrier comprises a substantially horizontal portion, a substantially rigid ramp portion, a stabilization enhancer, a substantially vertical portion, and a connector portion. The substantially horizontal portion comprising a first side and a second side. The substantially rigid ramp portion is positioned on the first side of the horizontal portion to guide a rolling vehicle onto the horizontal portion. The stabilization enhancer is configured to distribute at least a portion of a groundward force of the rolling vehicle in an effective amount to prevent substantial horizontal movement of the barrier. The substantially vertical portion is positioned on the second side of the horizontal portion to impede movement of the rolling vehicle when traveling towards the second side of the horizontal portion from the first side of the horizontal portion. The connector portion is where the horizontal portion connects to the vertical portion.
摘要:
An end treatment array for crash attenuation includes a transition barrier module formed of side walls, end walls, a top wall, and a bottom wall, wherein the module walls together define an enclosed interior space. The end treatment array further includes a containment impact sled having an axially extending frame. The frame has a width sufficient to contain the transition barrier module within the frame when in an assembled configuration, and has an axial length which is at least one-half the length of the transition barrier module. The frame defines an interior volume, the purpose of which is to contain a substantial portion of the transition barrier module in the assembled configuration, and to contain debris caused by destruction of the plastic barrier modules in a vehicular impact. The containment impact sled is attached to the transition barrier module.
摘要:
An advertising bollard assembly, comprising: a main body defining an interior and an outer surface; one or more compressible inserts positioned in the interior of the main body, the compressible inserts being configured to be positioned on a bollard to couple the advertising bollard assembly to the bollard; and an attachment mechanism coupled to the outer surface of the main body, the attachment mechanism being configured to receive one or more advertisements.
摘要:
An end treatment array for crash attenuation includes a transition barrier module formed of side walls, end walls, a top wall, and a bottom wall, wherein the module walls together define an enclosed interior space. The end treatment array further includes a containment impact sled having an axially extending frame. The frame has a width sufficient to contain the transition barrier module within the frame when in an assembled configuration, and has an axial length which is at least one-half the length of the transition barrier module. The frame defines an interior volume, the purpose of which is to contain a substantial portion of the transition barrier module in the assembled configuration, and to contain debris caused by destruction of the plastic barrier modules in a vehicular impact. The containment impact sled is attached to the transition barrier module.
摘要:
A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a notch or groove in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The ropes when weaved are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.
摘要:
The invention relates to a restraint system for vehicles in the region of roads, which is combined with substantially panel-shaped screening and/or noise protection elements (1), wherein deflecting elements (2), which are made of concrete for example, are connected to supports (4) via connecting webs (3), and the screening and/or noise protection elements (1) are held between the lateral surfaces which extend in the longitudinal direction of the deflecting elements (2) and which face the screening and/or noise protection elements (1) and the lateral surfaces of the supports (4) which face the screening and/or noise protection elements (1). The screening and/or noise protection elements (1) are provided at their lower edge with open slots (6, 6′) in which the connecting webs (3, 3′) of the deflecting elements (2) engage.
摘要:
An anti-ram system and method of construction having a shallow mounted base pad from which extend a plurality of bollards. Very little or only a shallow excavation is required for the base of the bollard system, which can be partially or fully assembled prior to bringing it to the installation site. The shallow mounting pad or base of the bollard system of this invention may be formed or constructed in various ways and of various materials, and in various configurations. The shallow mounting pad or base is constructed so as to have considerable mass.
摘要:
Banner apparatus (10) for supporting a flexible banner (16), the apparatus comprising a spindle and an attachment element attached to the spindle and arranged to enable the flexible banner to be releasably coupled to the spindle.
摘要:
A bollard having a plurality of parallel, vertical legs spaced apart from each other on the perimeter of a regular geometric shape. The minimum number and/or cross-section of the legs is governed by the need to avoid creating an entrapment area between adjacent legs. If an even number of legs is provided, they can be arranged in diametrically opposite pairs of decreasing height, the pairs of legs being joined at their tops to form a series of at least three nested, inverted substantially U-shaped forms of decreasing height set around a common vertical axis. The bollard also includes elements for joining the legs together as a unit, for example, a cylindrical center member having the common vertical axis of the legs as its longitudinal axis, a longitudinal rib joining each leg to the center member, and a plurality of horizontal ribs joining adjacent legs to each other.