Corrugated Steel Beam Guard Rail Safety Barriers with Delineators

Corrugated steel beam barriers (CSBBs) are traffic barrier systems specifically designed to absorb impact and deflect vehicles from critical structures. Their design prevents catastrophic failure of the barrier while minimizing damage to the vehicle. Composed of high-strength steel beams featuring corrugations, these barriers fold upon impact, effectively absorbing the energy from a collision, thus protecting both the barrier and the vehicle.

CSBBs are primarily utilized to safeguard essential infrastructure, such as bridges, highways, and power plants, from vehicle-related incidents. Additionally, they are often employed to prevent large vehicles from leaving designated roads and highways. Compared to traditional concrete barriers, CSBBs less frequently cause severe injuries to drivers during accidents and offer a more cost-effective solution for installation and maintenance. Moreover, CSBBs can be rapidly and easily reconfigured to adapt to changing roadway sizes and shapes.

For more information, visit DACHU.

We provide corrugated steel beams for safety barrier contracting firms and state highway projects across various countries.

Corrugated Sheet Steel Beams for Guardrail Barriers

Our corrugated sheet steel beams meet the AASHTO M180-78 Class A specifications for Highway Guard Rails Crash Barriers. The nominal thickness of the base metal is 2.67 mm and falls under Type 1, with a minimum zinc coating of 550 g/m². These beams are in a W-Beam shape and have been subjected to official crash tests.

The steel posts with corrugated beams comply with AASHTO M183 standards, and galvanizing is executed in accordance with AASHTO M111.

The fittings (bolts and nuts) conform to or exceed ASTM A 307 requirements, with hot-dip zinc coating following AASHTO M232M, Class C specifications. The corrugated steel beam guardrails come complete with bolted warning reflectors, steel posts, metallic spacing devices, and bolts.

Posts and Spacers

Structural steel used in these components conforms to ASTM A36, quality S235J, as dictated by the EN - 1 standard.

Base Metal Specification to AASHTO M180-89

Properties

Tensile strength, minimum: 490 N/mm²

Yield stress, minimum: 345 N/mm²

Elongation, % min: 15%

Mass for Corrugated Beam Guardrails and Accessories
The mass per unit for guardrails is 44 kg.

Hot Dipped Galvanized W Beam Specifications:
- Normal Specification: mm x 310mm x 85mm
- Thickness: 3mm or 4mm; available in various sizes.
- Features: Excellent corrosion resistance, high strength, and durability.

Highway guardrail corrugated metal beams include:
Crash barriers guardrail W beam sheet.
We offer two-wave and three-wave designs for highway guardrail applications.
Production standards: JT/T 281 - JT/T457 - GB/ASTM.
Raw material: Q235 galvanized steel sheet.
Specification: mm x 310mm x 85mm x 3mm, mm x 310mm x 85mm x 4mm.
Steel thickness: 3mm, 4mm, or customized upon client request.
Finish: Hot dip galvanized.
Galvanization thickness: Above 70 µm.
Weight of finished beam: 48.10 kg.

Steel beam guardrails create both visual and physical barriers between traffic and work areas, protecting against accidents involving lift trucks or other mobile equipment in dock areas and aisles. They help reduce costly damage to equipment and inventory and can be easily expanded or relocated as necessary. Designed for outdoor use.

Project Illustrations

Supply of AASHTO Corrugated Steel Beam Guard Rail to Oman Project
Our guardrails for Oman are supplied in accordance with AASHTO standards.

Guard Rail Beams with Nut Bolts and Washer:
- Guard Rail Beam 3.43mm thick x 3.81 M long, complete with required nut, bolt & washer. Type-1 Class B, conforming to AASHTO-180. Materials galvanized as per AASHTO specifications.

Guard Rail Post with Spacer + Nut Bolt Washer:
- CLASS 120 X 13.5 kg/m, conforming to AASHTO M-160. Material according to respective AASHTO specifications.

End Anchorage 3.43mm:
- Conforming to AASHTO-180. Company profile and latest test report, along with sample, must be submitted before material delivery on site for approval.

Terminal Section:
The supplier must provide material samples, the latest test reports, and a credential list with the proposal for obtaining approval.

Guard Rail Drawing:

Typical Fe360b Type Galvanized Steel Beam:

Guard Rail Reflector:

W-beam dimensions in meters:

Installation Tips:
1. Where the guardrail meets a bridge parapet or concrete barrier, a connection must develop sufficient strength. Post centers must be maintained at mm for 11.4m before the connection, irrespective of the system used.

2. Guardrails must extend 30m before a hazard and continue 15m beyond it.

3. Guardrails should overlap in the traffic direction.

4. A flare offset must be maintained at a minimum of mm.

5. Guardrails following curves of less than 45m radius must be curved accordingly.

6. Holes for end posts should be backfilled with well-compacted granular material, and the space inside the terminal nose must be filled with concrete.

Fabrication, Supply, and Installation of Corrugated Steel Beams, Posts, Anchorages, and Connections for Safety Barriers and Delineators

Corrugated Steel Beam Safety Barrier
Including:
- Safety barrier guardrail steel beam
- Safety barrier guardrail post
- End anchorage

Construction Requirements

In rock strata, where excavation by standard means is not feasible, 0.25m diameter holes shall be drilled with the Engineer's approval. These holes must be backfilled with concrete class 12/20. Under no circumstances should cutting of posts be permitted for fixation.

For more information, please visit Hot Dip Galvanized W-Beam Guardrail.

When installed atop a concrete wall or parapet, the post must be cut to specified dimensions and welded to a base plate of 250x250x10 mm thickness. The plate must be welded and holes punched before galvanizing. Posts will be affixed to the concrete foundation using four 16mm diameter raw bolts, each 150mm long. This fixation method may also apply to rock strata with prior Engineer approval at no added cost to the Employer.

End rail anchorage at both approach and departure ends of the safety barrier comprises a sloping beam of the safety barrier, terminal nose, and intermediate & end anchor posts.

Materials

Beams, washers, and bolts shall meet AASHTO M 180 requirements. Beams will be of Type 1 Class 3.

Delivered beams must be fully formed, pre-punched for mounting and splicing, ensuring readiness for assembly. They should possess a uniform corrugated section, configured as straight or curved as needed. Beams must be installed on a radius of 45m or less.

Galvanization must occur post-fabrication, with each element marked during fabrication with the manufacturer's name, gauge, heat number, and coating lot reference.

Concrete for footings and anchorages must be grade 20, adhering to relevant specifications.

Construction Requirements

Steel safety barriers shall be installed. Posts must be precisely set based on indicated lines and levels.

Beams and posts must not be punched, reamed, or drilled on-site.

Beams must be spliced such that the edge faces away from the oncoming traffic.

Driven posts or those set into concrete foundations are required.

Steel beam safety barriers must present a flowing alignment, adhering to the following tolerances:

(i) Alignment on plan should not deviate from prescribed alignment by more than ±80mm, nor should there be a deviation in any 10m length of more than ±15mm.

(ii) The height of the beam must not exceed the prescribed height by more than ±30mm, nor should there be a deviation in any 10m length of more than ±10mm.