Highway guardrail is the main form of semi-rigid guardrail. It is a continuous structure with corrugated steel guardrail plates spliced and supported by main columns. The vehicle absorbs energy when it collides, which is not easy to be crashed, but also plays a good role in protecting the vehicle and drivers and passengers.
The bending of expressway guardrail can increase the aesthetics and the strength of guardrail at the same time; It is formed by extrusion of automatic production line, with clean and undamaged surface and strong corrosion resistance; The surface treatment method is mature; It has the characteristics of anti-corrosion, anti-aging, sun resistance, high and low temperature resistance, and the service life in outdoor environment can reach 10-25 years; The product has the advantages of simple structure, beautiful and practical, easy transportation and installation, good anti-theft performance, small restriction by the actual terrain, strong adaptability to mountains, slopes and multi curved areas, moderate cost and suitable for large-scale use.
According to the surface treatment, it is divided into hot-dip galvanized corrugated guardrail and galvanized plastic spraying.
According to the location, it can be divided into roadside guardrail and median guardrail.
According to the anti-collision level, it can be divided into class A and class s. Class s guardrail is of reinforced type, which is suitable for sections with particularly dangerous roadsides, and class a guardrail is used for special roads. Common roadside corrugated beam guardrails can be divided into five levels: B, a, Sb, SA and SS.
(1) Double wave wave guardrail board: 4320mm long, 310mm wide, 85mm deep and 3mm / 4mm thick.
(2) Three wave wave guardrail board: 4320mm long, 506mm wide, 85mm deep and 4mm thick.
(3) Round column: 140 / 114mm in diameter, 4 / 4.5mm in wall thickness, 1200mm / 1500mm / 1800mm / 2150mm in length.
Square column: side length 130mm, wall thickness 6mm.
(4) Column cap: thickness 2 / 3mm, hole spacing 100 / 150mm, diameter 114 / 140mm.
(5) Anti blocking block: 196 * 178 * 200mm, thickness: 3mm / 4mm / 4.25mm/4.5mm.
Bracket: 300mm long, 70mm wide, 4mm / 4.5mm thick.
(6) Bolt: M16 * 170 / M16 * 150 / M16 * 50 / M16 * 42 / M16 * 35