Abstract: A structural assembly may include a first prefabricated structural element having a first angled face at an end of the first prefabricated structural element; a second prefabricated structural element having a second angled face at an end of the second prefabricated structural element, the end of the second precast barrier segment connected to the end of the first prefabricated structural element; and a coupling assembly connecting the first angled face of the first prefabricated structural element to the second angled face of the second prefabricated structural element. The coupling assembly provides shear and moment continuity across the first and second prefabricated structural elements. This allows for a variable gap due to manufacturing tolerances, construction tolerances, and/or expansion or contraction.

Abstract: A high-impact, energy-absorbing vehicle barrier system generally includes a substantially rigid outer containment wall coupled via strap assemblies with an energy-absorbing inner impact wall, and energy-absorbing cartridges strategically positioned between the impact wall and containment wall. The impact wall is constructed of a number of tubes coupled with one another to present a substantially smooth, uniform surface to passing vehicles. The energy-absorbing cartridges generally consist of a foam member or a number of foam sheets which compress and crush between the containment wall and impact wall to absorb energy from an errant vehicle striking the face of the impact wall, while the deflection and deformation of the impact wall tubes dissipates additional energy to reduce peak decelerations and mitigate the severity of high-energy vehicular impacts.

Abstract: A crashworthy traffic noise barrier system for use alongside a path of traffic, the crashworthy traffic noise barrier system comprises a crashworthy longitudinal barrier extending substantially parallel to the path of traffic and a crashworthy traffic noise barrier wall supported by the longitudinal barrier. The crashworthy traffic noise barrier wall includes a plurality of upstanding posts attached to the traffic noise barrier wall, at least one panel supported between each adjacent pair of posts in the plurality of upstanding posts, and at least one longitudinal beam spaced above a top surface of the longitudinal barrier and extending across the plurality of upstanding posts for redirecting a portion of an errant vehicle away from the at least one panel. The longitudinal beams redirect energy of the errant vehicle away from the panels such that the panels and any fragments of the panels, remain attached to the traffic noise barrier wall.

Abstract: A high-impact, energy-absorbing vehicle barrier system generally includes a substantially rigid outer containment wall coupled via cable restraint assemblies with an energy-absorbing inner impact wall, and energy-absorbing cartridges strategically positioned between the impact wall and containment wall. The impact wall is constructed of a number of rectangular tubes coupled with one another to presents a substantially smooth, uniform surface to passing vehicles. The energy-absorbing cartridges generally consist of a number of foam sheets which compress and crush between the containment wall and impact wall to absorb energy from an errant vehicle striking the face of the impact wall, while the deflection and deformation of the impact wall tubes dissipates additional energy to reduce peak decelerations and mitigate the severity of high-energy vehicular impacts.

Abstract: A breakaway mounting system for mounting a structure to a fixed support surface has a plurality of elongated mounting members extending generally perpendicular to the support surface. An attachment plate is coupled with the structure to be mounted. The attachment plate has a plurality of apertures formed therein, and each of the mounting members extends through one of the apertures. A plurality of shearing plates are provided. Each shearing plate generally surrounds one of the mounting members and is positioned between the support surface and the attachment plate. Each shearing plate has an upper surface and a lower surface. The area of the shearing plate upper surface is substantially smaller than the area of a lower surface of the attachment plate, and the area of the shearing plate lower surface is substantially smaller than the area of the support surface. A fastener is attached to the mounting member for securing the attachment plate to the support surface.