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W Beam Guardrail

W Beam Guardrail

W Beam Guardrail

Company certificate:ISO 9001, ISO 14000
Qaulity inspection: SGS or other authorized party acceptable
Production Capacity: 3000 sets each day
Loading port: Xingang(Tianjin), China

Products Detail

What is W Beam Guardrail?
    "W-beam" ,namely waveform beam guardrail is the common name for the most widely used highway barrier, (AASHTO designation G4(1S) or SGR-04 in the Standardized Highway Barrier Hardware Guide). Its name comes from the shape of the beam used as the rail element of the guardrail, which is supported at 27 ¾ inches by strong posts (wood or steel) and a "block out" to provide space between the post and beam. The newer 31-inch w-beam guardrail systems include the generic Midwest Guardrail System (MGS) as well as 3 proprietary guardrails. The terms guardrail and guide rail are synonymous, and are used in different regions around the country.

Functionalty Categories:
   * Guardrail no longer reasonably functional
   * Guardrail should function adequately under a majority of impacts
   * Should not impair the guardrail's ability to perform

Installation:
   ALL W-beam guardrail panels shall be lapped in the direction of traffic. With two-way traffic, the laps on the right side of traffic are to be in the direction of traffic or toward the downstream end.

Standard Section:
   The function of the standard W-beam section is to prevent penetration by a vehicle, either through, over, or under the W-beam and to smoothly redirect the vehicle. You can use the chart below to determine the functionality category based upon the damage to the standard section of the W-beam guardrail.

STANDARD SECTION OF W-BEAM

EXTENT OF DAMAGE

FUNCTIONALITY

RAIL ELEMENT SEPARATED

1

RAIL ELEMENT TORN

1

TOP OF RAIL HEIGHT ≤ 24"

1


RAIL ELEMENTS INTACT

FULL SPLICES

TOP OF RAIL HEIGHT > 24"*

AMOUNT OUT OF ALIGNMENT

AMOUNT OF BROKEN/BENT OR SEPARATED POSTS

3

<6"

0

1-2

2

≥3

1

6" – 12"

0-2

2

≥3

1

≥18"

NOT APPLICABLE

1

Waveform Beam Guardrail Net 
Waveform Beam Guardrail Net 
Waveform Beam Guardrail Net 
Waveform Beam Guardrail Net 

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