초록 ▼

An advanced dynamic impact extension module, used to protect occupants of vehicles from the adverse effects of extremely rapid deacceleration of a vehicle when the vehicle impacts an end of a concrete barrier wall is disclosed. According to the invention, a barrier wall is provided which has a struc

An advanced dynamic impact extension module, used to protect occupants of vehicles from the adverse effects of extremely rapid deacceleration of a vehicle when the vehicle impacts an end of a concrete barrier wall is disclosed. According to the invention, a barrier wall is provided which has a structural concrete base and a channel portion adaptable to receive low strength reinforced concrete modules. The concrete modules are composed of three layers of crushable material of varying strengths. The first or lowest layer is composed of semi-crushable, higher strength concrete and which is adaptable to secure reinforcement and S-beam connectors. The second layer is lower strength material and the top layer is intermediate strength material. The second and top layer keep an impacting vehicle down and prevent ramping. The modules are arranged linearly beginning at a front end closest to the path of an oncoming vehicle and proceeding toward a back end proximate a roadside obstacle. An impacting vehicle will crush the modules in succeeding fashion according to its impact velocity. The last module in the linear array has triangular steel reinforcement which will cause the impacting vehicle to rise up to avoid the roadside obstacle if the impacting vehicle has sufficient impact force or velocity to crush all the preceding modules. The structural concrete base will coact with the undercarriage of the vehicle in order to bring the vehicle safely to rest before it impacts the roadside obstacle. The height or elevation of the non-crushable concrete base of the barrier will increase in step-wise or sloping fashion so that as a vehicle passes through the barrier, the increased height of the base portions of the barrier base coact with the bottom, or undercarriage, of the vehicle to create friction and drag between the bottom of the vehicle and the base component of the barrier to thereby bring the vehicle to rest before it impacts the end of a concrete barrier wall.

대표청구항 ▼

A roadside barrier, adapted to prevent vehicles from impacting an obstacle, comprising; a structural concrete base section adaptable at its upper surface to receive rectangularly shaped crushable modules; wherein said base section defines a channel along the upper surface of said base and wherein sa

A roadside barrier, adapted to prevent vehicles from impacting an obstacle, comprising; a structural concrete base section adaptable at its upper surface to receive rectangularly shaped crushable modules; wherein said base section defines a channel along the upper surface of said base and wherein said rectangular modules are received within said channel and are arranged end-to-end; a first type of said module comprising a composite module comprising three layers of crushable material of varying strengths; wherein the lowest layer comprises a higher strength material, an intermediate layer immediately above said lowest layer comprising a low strength material, and an uppermost layer comprising material having a strength above said low strength material and weaker than said high strength material; and a second type of module comprising a composite module comprising three layers of crushable material of varying strengths substantially the same as said first module type; said second module type positionable at the end of a linear array of modules of said first type at the end of said structural concrete base immediately adjacent said roadside obstacle; and wherein the structural reinforcement within said module is characterized by ability to impart upward movement to an impacting vehicle; and means for fixedly attaching said modules of the first type and means for fixedly attaching said modules of the second type to said base.