Corrugated Steel Beam Guard Rail Safety Barriers with Delineators

Corrugated steel beam barriers (CSBBs) are traffic barrier systems designed to absorb impact and deflect vehicles away from a structure without causing catastrophic failure of the barrier or significant damage to the vehicle. They are constructed of high strength steel beams with corrugations that fold in on impact, allowing the system to absorb the energy of a vehicle while limiting the amount of damage done to both the barrier and the vehicle. CSBBs are primarily used to protect critical infrastructure, such as bridges, highways, and power plants, from vehicle-borne attacks. These barriers are also often used to prevent large vehicles from leaving roads and highways. Compared to traditional concrete barriers, CSBBs are less likely to cause serious injury to drivers in the event of a crash, and are much more cost-effective to install and maintain. Furthermore, CSBBs can be quickly and easily reconfigured to change the size and shape of the barrier as needed.

We supply corrugated steel beams for safety barrier contracting company and state network highway projects in various countries.

Corrugated Sheet Steel Beams for Guardrail Barriers

Our corrugated sheet steel beams conforming to the requirements of AASHTO M180-78 Class A for Highway Guard Rails Crash Barrier. The base metal nominal thickness of 2.67 mm and Type 1, with zinc coated of 550 g/m2 minimum-spot and of W-Beam shape. The corrugated steel beam guardrail must have been submitted to official crash test.

The steel posts with corrugated beams conform to the requirements of AASHTO M183 and galvanising be in accordance with AASHTO M111.

The fittings (bolt and nuts) conform to or exceed requirement of ASTM A 307 and shall be hot dip zinc coated in accordance with the requirement of AASHTO M232M, Class C. The corrugated steel beam guardrails are supplied and delivered completed with bolted warning reflectors, steel, posts and metallic spacing device and bolts etc. 

Posts and Spacers

Structural steel used for these components conforms to ASTM A36 spectification, quality S235J, according to EN 10027- 1 standard. 

Base metal Specification to AASHTO M180-89

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

Hot dipped galvanized W beam 2 bending highway guardrails

Specifications:
Hot dip galvanized guardrail beam, crash barrier
Normal specification: 4320mm*310mm*85mm
Thickness: 3mm or 4mm, available in any different sizes.
Features: great corrosion resistant, high intensity, long and durable

Highway guardrail corrugated metal beams:

Crash barriers guardrail W beam sheet
We can make two waves, three waves for highway guardrail application
Production standard: JT/T 281-2007 JT/T457-2007 GB/ASTM
Raw material: Q235 galvanized steel sheet
Specification: 4320mm*310mm*85mm*3mm 4320mm*310mm*85mm*4mm
The thickness of steel: 3mm, 4mm or according to clients request.
Finish: hot dip galvanized
The thickness of galvanization: above 70 um
The weight of finished beam: 48.10 kg

Steel beam guardrails provide a visual and physical barrier between traffic and work area.
For production against accidents due to lift trucks or other mobile equipment in dock area, aisles, around equipment or offices.
Reduce costly damage to equipment and inventory.
Modular system is easily expanded or moved as needed.
For outdoor use.

Project Illustrations

Supply of AASHTO Corrugated Steel Beam Guard Rail to Oman Project
Our guard rails for Oman is supplied meeting AASHTO respective standard.

Guard Rail Beams with Nut Bolts and Washer
Guard Rail Beam 3.43mm thick x 3.81 M long :
With required nut bolt & washer
Type-1 Class B. Conforming to AASHTO-180.
Materials: Galvanising as per the respective standard as identified in AASHTO.
Galvanised steel beam conforms to fe360b.
Company profile, latest test certificate along with sample shall be submitted for prior approval.

Guard Rail Post with Spacer+Nut Bolt Washer :
CLASS 120 X 13.5kg/m. conforming to AASHTOM-160. Material as per respective standard as identified in AASHTO.

End Anchorage 3.43mm
Conforming to AASHTO-180. Company profile and latest test report along with sample shall be submitted before material delivered to the site for approval.

Terminal Section
Supplier has to furnish along with proposal the material sample, latest test reports, and credential list for obtaining the approval.

Guard Rail Drawing:

Typical Fe360b Type Galvanised Steel Beam:

Guard Rail Reflector:

W-beam dimensions in metres:

Installation Tips:
1 - Where the guardrail abouts a bridge parapet or concrete barrier, the guardrail must join the parapet or barrier with a connection capable of developing the full strength of the barrier, posts centres shall be 1905mm for 11.4m in advance of the connection whatever system is being used.

2- Guardrail shall be provided for 30m in advance of a hazard and continue 15m beyond it.

3- Guardrail shall overlap in the direction of the traffic flow.

4- Flare offset shall be 1140mm minimum.

5- Where the guardrail has to follow a curve of less than 45m radius, the beams shall be curved accordingly.

6- The holes for end posts shall be backfilled with well compacted granular material. The space inside the terminal nose shall be filled wth concrete.

Fabrication, supply and installation of corrugated steel beams, posts, anchorages and connections for safety barrier and delineators

Corrugated Steel Beam Safety Barrier
Including:
Safety barrier guard rail steel beam

Safety barrier guard rail post

End anchorage

Construction Requirements

Where guard rail is to be installed in rock strata, and excavation by ordinary means is not possible, 0.25m dia holes shall be drilled with approval of the Engineer. These holes shall be backfilled using concrete class 12/20. In no case cutting of post shall be allowed to facilitate the fixation.

Where guard rail is to be installed on top of a concrete wall or parapet, the post shall be cut to the dimensions shown on the drawings and welded with 25025010 mm thick base plate. Plate shall be shop welded and holes punched prior to galvanizing by the manufacturer. Post shall be then fixed on the concrete foundation using four (4) number raw! bolts of 16mm dia, each 150mm long. The Contractor may choose to use this method of fixation in rock strata with prior approval of the Engineer at no extra cost to the Employer.

End rail anchorage at approach and departure ends of the safety barrier shall include sloping beam of the safety barrier, terminal nose and Intermediate & end anchor posts.

Materials

Beams. Washers and bolts shall conform to the requirements of AASHTO M 180. Beams shall be type 1 Class 3.

The beams shall be completely formed, punched with holes for mounting and splicing, and ready for assembly when delivered. They shall be of uniform corrugated section, straight or curved as required. Beams to be erected on a radius of 45m or less.

Galvanising shall be carried out after fabrication and each element and end sections shall be marked at the point of fabrication with the manufacturer's name or trademark, gauge and heat number, and with the coating lot reference.

Concrete for footings and anchorages shall be grade 20 in accordance with relative requirements.

Construction Requirements

Steel safety barriers shall be installed. Posts shall be set plumb and to the indicated lines and levels.

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

Beams shah be spliced by lapping with the edge facing away from the nearside direction of t:affic.

Driven posts or posts shall be set in concrete foundations.

Steel beam safety barriers shall be erected to present a flowing alignment to the following tolerances:

(i) the alignment on plan shall not depart from the prescribed alignment by more than ±80mm, nor deviate in any 10m length from the prescribed alignment by more than ±15mm.

(i) the height of the beam shall not depart from the prescribed height by more than ±30mmt nor deviate jn any 10m length from the prescribed height by more than ±.10mm.