Corrugated beam steel guardrail is a common traffic safety facility, mainly used in traffic sections such as highways, bridges and tunnels, aiming to reduce traffic accidents and protect personal safety. In order to standardize the production and use of corrugated beam steel guardrails, the state has formulated a series of national standards. This article will introduce and interpret the national standard for corrugated beam steel guardrail in detail.
First, the definition and function of corrugated beam steel guardrail.
Corrugated beam steel guardrail is a structure composed of steel plates, steel pipes and connectors, and its shape is corrugated, so it is named corrugated beam steel guardrail. This kind of guardrail reduces the degree of injury to personnel by absorbing the impact energy of the vehicle, and can also prevent the vehicle from rushing out of control after rushing off the road, ensuring the safety of other vehicles and pedestrians. Corrugated beam steel guardrails are widely used in highways, primary highways, secondary highways, bridges and tunnels and other traffic sections.
Second, the main content of the national standard for corrugated beam steel guardrails.
1.The structural form and specifications of the corrugated beam steel guardrail.
According to the national standard, the corrugated beam steel guardrail can be divided into three types: reinforced, ordinary and cable. There are strict regulations for each type of structural form and specification. The reinforced corrugated beam steel guardrail adopts a double corrugated plate and double steel pipe structure, which has a higher anti-collision abilityThe ordinary corrugated beam steel guardrail adopts a single corrugated plate and a single steel pipe structure, which is suitable for general road sectionsThe cable-type corrugated beam steel guardrail adopts a cable and column structure, which is mainly used for the first separation belt.
2.Material requirements for corrugated beam steel guardrails.
The materials used in the corrugated beam steel guardrail must meet the national standards, among which the steel plate should be made of carbon structural steel plate, and the steel pipe should be made of seamless steel pipe or welded steel pipe. The connectors should be made of steel or aluminum alloy materials that meet national standards and have undergone anti-corrosion treatment.
3.Manufacturing process requirements for corrugated beam steel guardrail.
In the manufacturing process, the steel plate of the corrugated beam steel guardrail should be derusted, anti-corrosion, and punched, bent, welded and other processing techniques. After the processing is completed, the appearance quality inspection of the corrugated beam steel guardrail should be carried out to ensure that its surface is smooth, thorny, free of cracks and other defects.