How to Choose Hot Dip Galvanized W-Beam Guardrail?

19 Aug.,2024

 

Advantages of Hot-Dip Galvanized W-Beam Guardrails

Hot-dip galvanized W-beam guardrails are barriers designed to prevent vehicles from leaving the roadway and colliding with hazardous objects or entering opposing traffic lanes. They consist of galvanized steel beams, which are shaped in a W-profile to provide maximum strength and stability. The hot-dip galvanizing process involves coating the steel beams with a layer of zinc, ensuring excellent corrosion resistance and durability.

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Advantages of Hot-Dip Galvanized W-Beam Guardrails

1 Durability and Corrosion Resistance

Hot-dip galvanized W-beam guardrails are built to withstand the rigors of outdoor environments. The galvanizing process creates a protective zinc coating that acts as a barrier, preventing corrosion and rust formation. This durable coating ensures that the guardrails can withstand exposure to various weather conditions, including rain, snow, and extreme temperatures, without compromising their structural integrity.

2 Effective Crash Mitigation

The primary purpose of hot-dip galvanized W-beam guardrails is to mitigate the impact of vehicle collisions and protect motorists. The W-shaped design of the guardrails provides superior strength and energy absorption capabilities, effectively redirecting and containing errant vehicles. When properly installed, these types of guardrails can minimize the severity of accidents and reduce the risk of vehicles leaving the roadway or colliding with hazardous obstacles.

3 Cost-Effectiveness

Hot-dip galvanized W-beam guardrails offer long-term cost-effectiveness. The galvanized steel construction provides exceptional durability, resulting in a longer service life and reduced maintenance and replacement costs. Additionally, the corrosion resistance of the galvanized coating eliminates the need for frequent repainting or additional protective coatings, further reducing maintenance expenses over time.

4 Easy Maintenance and Repair

Maintaining and repairing hot-dip galvanized W-beam guardrails is relatively straightforward. The galvanized coating requires minimal maintenance, typically limited to routine inspections for damage or wear. In the event of a collision or damage, individual guardrail components can be easily replaced without the need for extensive repairs or complete replacement of the entire barrier system, ensuring quick and cost-effective repairs.

Construction and Installation of Hot-Dip Galvanized W-Beam Guardrails

The construction and installation of hot-dip galvanized W-beam guardrails involve several key steps:

Design and Engineering: Guardrail systems are designed and engineered based on specific roadway requirements, taking into account factors such as speed limits, traffic volume, and roadside conditions.

Component Fabrication: Steel beams are fabricated into the W-beam profile, typically through roll forming processes, ensuring consistent dimensions and structural integrity.

Hot-Dip Galvanizing: The fabricated steel beams undergo hot-dip galvanizing, a process that immerses the steel in molten zinc to create a corrosion-resistant coating.

Installation: The guardrail components are installed along roadways, following established installation guidelines and safety regulations. This includes proper anchoring, spacing, and end treatments to ensure optimal performance.

W Metal Beam Guard Rails for Highway and Bridges

W Metal Beam Guard Rails for Highway and Bridges

W-beam guardrail has a section or profile of W shape, it is also named as two wave beam guardrail. This is the major type of beam barriers for highways safety with symmetrical designs on each side of the beam. We supply two kinds of finishes for W beam guardrail panels: hot dipped zinc coating or plastic coating. According to the fabricated shapes, our W-beam guardrails can be divided into two types: the straight line w-beam,or the curved beams.

How to choose straight W beam or Curved Beam used for your uses?

The straight W-beam guardrail can be lined up for transitioning smoothly and is suitable to the curves with a radius greater than 45m. For the radius less than 45m, the pre-curved W-beam guardrail product exploits its advantages to a full.

W beam guard railings can be used in expressway and highways to absorb maximum energy of the impact force when collision occures and reduce harms to cars and people. It can also protect the vehicles against skidding off roads, especially mountain roads and bridges and prevent the pedestrians from the danger of walking across highways.

General Technical Information of W Beam / Two Wave Guardrail Barriers:

Base Metal Material: steel: Q235 (S235JR / ASTM A283M) or Q345 (S355JR / ASTM A529M )

Standard specification: 380*85*2.75/3/4*/mm or 306*80*2.75/3/4*mm

Surface finishing: Hot dipped galvanized finish or powder coated.

Zinc coating thickness (double sides): 550 g/m2 (40µ) / g/m2 (80µ) / g/m2 (85µ)

Relevant parts required for guard rails: post, spacer (C, U and Sigma types etc) and fasteners

Profile: W-beam / two wave.

Plate Thickness:2.5mm-4mm

Thickness Tolerance: +/-0.015mm

Popular Specification of W Beam Guardrails:
Wave width: 310mm
Wave height: 85mm
Plate thickness: 2.5mm - 4mm
Beam length: mm

Scise Most Popular W Beam Guardrail System ( beams and necessories parts for installing ) for Export is composed as following:

Guardrail W-Beam Galvanized including bolts, nuts and washers;
Guardrail Steel Post, Box Beam;
Guardrail End Units;
Guardrail Terminal Units;
Hot Dipped Galvanized Steel Guardrail W Beam;
Hot dipped galvanized terminal section;
Hot dipped galvanized round steel post;
Hot dipped galvanized post cap;
Hot dipped galvanized black spacer;
Hot dipped galvanized flat plate washer;
Hot dipped galvanized bolts.

Packing 1.)25 pieces metal beam road guardrails per bundle, and then fasten the bundle with wire straps or hemp ropes.
2.)One 20 feet GP will hold about 510 pieces.
3.) Customers' requirements are available, too

 

 

Popular Specifications:

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

Normal W Beam Specification ×310 × 85 × 2.5(2.67/2.7/3.0 )   × 310 × 85 × 2.5(2.67/2.7/3.0)   × 310 × 85 × 2.5(2.67/2.7/3.0) Profile A Specification × 306 × 80 × 2.5(2.67/2.7/3.0) Profile B Specification × 310 × 75 × 2.5(2.67/2.7/3.0) Zinc Coating 550g/m²(40u)   g/ m² (80u) g/ m² (85u)   Standard   JT/T 281- AASHTO-M180   RAL RG620

Wave Size Applied to W Beam Guardrails:


W-beam Length -mm Wave width 300-600mm Wave height 50-100mm Thickness 2-6mm Notes: Custom length, width, height and thickness are available as your requirements.

Curved W Wave Guardrail Radius Details:

Radius (Feet) H/ Rise (Inches) Radius (Feet) H/ Rise (Inches) 5 (1.5m) 41 55 (16.8m) 4 1/4 6 (1.8m) 36 60 (18.3m) 4 8 (2.4m) 28 65 (19.8m) 3 5/8 9 (2.7m) 26 70 (21.3m) 3 3/8 10 (3.1m) 22 75 (22.9m) 3 1/4 12 (3.7m) 20 80 (24.4m) 3 13 (4m) 18 85 (25.9m) 2 3/4 15 (4.6m) 16 90 (27.4m) 2 5/8 16 (4.9m) 14 95 (29m) 2 1/2 20 (6.1m) 11 5/8 100 (30.5m) 2 3/8 25 (7.6m) 9 1/2 110 (33.5m) 2 1/8 30 (9.1m) 7 3/4 120 (36.6m) 2 35 (10.7m) 6 3/4 130 (39.6m) 1 3/4 40 (12.2m) 6 140 (42.7m) 1 5/8 45 (13.7m) 5 1/4 150 (45.7m) 4 1/2 50 (15.2m) 4 5/8    

W Beam & Pedestrian Barrier Project in Australia

Post and rail barrier for office block area and other sites.

Guardrail Fence:



Optional: W beam guard rail system 900 mm high
These system are going on a concrete floor.
The posts have base plates.
Delivery to Melbourne port.

12 Gauge W Beam Highway Guard Rails

We supply w wave corrugated metal beam 12 GAUGE(2.7P MIN.) for high way guard rails & bridge rails, AASHTO M 180 standard specifications and other international qualities. The system contains W-beam rail element, backup plates, and terminal sections, the 12 gage steel formed into a beam minimum 12 inches ( 300 mm) wide and 3 inches (75 mm) deep. The 6 inch channel rail and splice plate are manufactured in conformance with AASHTO M 183. AASHTO is simplified term of American Association of State Highway and Transportation Officials. Quality meeting Division 12 -- for metal beam guard rail of Kuwait and other other international qualities are also supplied.

Physical properties of the materials is as follows:

Tensile Strength: 483 MPa (min)
Yield Strength 345 MPa (min)
Elongation 12% (min).
Guard rails is supplied with Mill Test certificates of the materials.

12 Gauge Beam Guardrails: Elements and Parts

Steel Quality as per Grade Fe 410 or equivalent for W Beam.
Hot Dip Galvanizing as per AASHTO M180, 550 gm/m2.
Metal beam corrugating type: W beam

Details as below attached for reference:

1. Guard rails straight-3.0mm C/C class 'A' type

Material quality: AASHTO
3 mm thick Guard rails, W beam, in black finish.
Also Bridge Railing post only in aluminium mill finish.

2. Guard rail reflector
Quality: AASHTO

3. Railing Post, M16 x 32 bolt, Nut & Washer

Bulk Head
Finish: Galvanized
Quality: AASHTO

Guard Rails with Steel Post Blocks

   

GUARD RAIL TERMINATION DETAILS

4. M16 x 45 mm,Bolt, Nut & Washer

Bulk head
Finish: Galvanized
Material quality: AASHTO

 

If you are looking for more details, kindly visit Galvanized Highway W Beam Guardrail.