What is a guardrail end treatment?

What is a guardrail end treatment?

The starting point of the guardrail is referred to as the end treatment. The exposed end of the guardrail needs to be treated. One common treatment is an energy-absorbing end treatment that is designed to absorb the energy of an impact by having the impact head slide down the length of the guardrail.

What is a guardrail terminal?

Guardrail Terminal End – Best Protection against Impact Generally, obvious colors are often painted on guardrail terminal end to warn the driver not to impact or noticing a transition to high volume, high sped way. So it is widely used on the side or median of the roadway as shown in the right picture.

What are the three typical components in a guardrail system?

A standard railing should consist of a top rail, intermediate rail and posts, and shall have a vertical height of 42 inches. The structure must have the strength to withstand at least the minimum requirement of 200 pounds, applied in a downward or outward direction within 2 inches of the top edge.

What is Thrie beam?

Thrie Beam is a standard guardrail panel used as a longitudinal barrier to keep errant vehicles on the roadway. Instead of a two-wave design like W-Beam rails, Thrie Beam rail features a three-wave cross sectional design for added strength and durability and is often used in transitional areas like bridge approaches.

How deep do guardrail posts go?

Crash testing has shown that the standard strong post w-beam guardrail without rub rail is acceptable in the range from 27-3/4 inches to 30 inches above the ground. When the rail was tested at a lower height the pickup truck vaulted over the rail.

How much force can a guardrail take?

Guardrail systems are capable of withstanding, without failure, a force of at least 200 pounds (890 N) applied in a downward or outward direction within 2 inches (5 cm) of the top edge, at any point along the top rail.

What must a guard rail have?

(a) A standard guardrail shall consist of top rail, midrail or equivalent protection, and posts, and shall have a vertical height within the range of 42 inches to 45 inches from the upper surface of the top rail to the floor, platform, runway, or ramp level.

What are the requirements for a guardrail system?

OSHA states that guardrail must reach a height of 42 inches, plus or minus 3 inches, above the walking-working surface and withstand a force of 200 pounds at any point in a downward or outward direction. If the railing dips below 39 inches, due to the force, the railing is not OSHA compliant.

How much does a 26 foot guardrail weigh?

W-Beam Guardrail Weight per Panel: 93 pounds. LONG USED GUARDRAIL PANEL: Physical Length: 26′ // Industry Build per Panel: 25′ // Approx. Weight per Panel: 182 pounds.

How much does a guardrail post weight?

Eight Foot Used Guardrail Posts usually weigh approximately 73 pounds each.


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