The three-wave high-speed guardrail panel is the most effective type among guardrail panels in terms of protection. Currently, the main styles of three-wave high-speed guardrail panels are Japanese and American. Among them, the manufacturing process of Japanese three-wave guardrail panels is complex, while American three-wave guardrail panels have high material toughness, low material consumption, and relatively low manufacturing costs. The following is a brief introduction to the types and specifications of three-wave high-speed guardrail panels.

Core components of three-wave high-speed guardrail panels

Three-wave guardrail post: According to the national standard requirements for three-wave guardrail plates on expressways in China, the post length is 1.85 meters, and the post insertion depth is 1.1 meters; the post cross-sectional diameter is 140mm, and the pipe wall thickness is 4.5mm. It is treated with hot-dip galvanizing or hot-dip galvanizing + plastic immersion for anti-corrosion.

Three-wave high-speed guardrail plate energy-absorbing block: The energy-absorbing block is an important energy-absorbing component of the guardrail plate parts. It adopts a hexagonal hollow design. The hollow structure enables a perfect seamless connection between the post and the guardrail plate.

The installation of the three-wave high-speed guardrail posts, anti-blocking blocks and guardrail plates is of vital importance. Only after the three components are properly installed can the effect test be conducted. Any mistake in a certain link may lead to a decline in the overall protective effect of the guardrail plates.

The connection among the three is mainly achieved through special bolts for guardrail panels, and these bolts are equipped with excellent anti-theft devices to prevent theft by lawbreakers. Many friends are concerned about the complexity of replacing guardrail panels. In fact, with dedicated equipment and tools, it is convenient and easy to replace guardrail panels and anti-blocking blocks.

Specifications of Three-wave High-speed Guardrail Panels

According to the Ministry of Transport's industry standard "Waveshape Steel Guardrail for Expressways", the total length of the standard guardrail panel is 4320 millimeters (net length of 4 meters after installation), and the column spacing is 4 meters. The specification of the three-wave guardrail panel is 4320 millimeters in length, 505 millimeters in wave width, 85 millimeters in wave height, and 4 millimeters in thickness. The common specification writing form for the product and in the market is: 4320mm×506mm×85mm×3mm/4mm.

The specifications of the posts are almost the same as those of the double-wave corrugated guardrail. The specifications are Φ114 and Φ140mm, and the lengths are generally 1.85m, 1.95m, 2m, and 2.15m according to requirements, with a wall thickness of 4.5mm. The theoretical weight is 12.15kg/m for Φ114 and 15.04kg/m for Φ140mm.

Each standard section uses 250 pieces of guardrail plates per kilometer. The post spacing is 4 meters, with 250 posts used per kilometer, including 2 end posts. There are 250 post caps, 250 anti-blocking blocks, 250 sets of connecting bolts, and 2.000 sets of splicing bolts for the corrugated guardrail plates.

Highway guardrail plates can be classified into nine-hole plates, ten-hole plates, etc., based on different connecting parts, and they all have different specifications and dimensions. Similar to the two-wave corrugated guardrail, in necessary dangerous sections, reinforced guardrail plates can be selected to achieve the purpose of anti-collision and protection.

In addition, each type of corrugated guardrail plate has certain accessories, and they also have their own standards according to different corrugated guardrails. The accessories of expressway guardrail plates include: brackets of 70*310*thickness, anti-blocking blocks of 178*196*200*thickness, etc.