| 摘要 |
FIELD: construction.SUBSTANCE: road barrier fence is designed to eliminate possibility of motion of vehicles in certain directions and to absorb shock energy when a vehicle collides with it. The barrier design includes evenly arranged supports and a row of horizontal longitudinal tubular elements fixed to them via units of fixation, including energy-absorbing elements, and sections of horizontal longitudinal tubular elements are connected to each other via internal couplings, equipped with a central ledge, the outer edge of which is arranged aflush with the outer diameter of the pipe, and threaded joints. The start and end protective elements of the barrier are made of pipes in the form of C-shaped or E-shaped links, which connect to each other longitudinal tubular elements of the barrier and are connected to them also via internal couplings and threaded joints. The inner cavities of longitudinal tubular elements of the barrier and start and end C-shaped or E-shaped links are filled with a hardened foam material. The road barrier fence along its entire length and on its every section has a much higher strength, energy-absorbing and accordingly retaining capacity. At the same time the value of energy absorption and characteristic of shock absorption may be varied within wide limits, setting the value of the diameter and thickness of the wall of metal longitudinal tubular elements, start and end sections in the form of links, and also rigidity of the hardened foam material.EFFECT: design of a barrier has simplicity, low cost of manufacturing and simplicity of assembly in area of application.3 cl, 5 dwg |
