Barrier Screw Quality

Svensk översättning


Road

Database table road_barrier_collided
Database variable name Barrier_screw_quality
Introduction date 2009-07-01
Expiration date Still active

Short description

The steel quality of the barrier screws.

Values

2 4,6
3 8,8
7 Unmarked
7777 Not Applicable
8888 Other
9999 Unknown

Description

Barrier screw quality describes the steel quality of the barrier screws. The steel quality can be seen on the bolt head of the screws connecting the guardrail post with the guard rail beam. The screw quality is given as two digits separated by a point, e.g., 4.8.

It is noted for each barrier that is a collision object.

The following options exist:

4,6
The screws are of quality 4.8, meaning their ultimate strength is 400 MPa and their yield strength is 80% of 400 MPa, i.e. 320 MPa.
8,8
The screws are of quality 8.8, meaning their ultimate strength is 800 MPa and their yield strength is 80% of 800 MPa, i.e. 640 MPa.
Unmarked
The screw heads have no markings.
Not Applicable
Other
The screws are of another quality.
Unknown
The screw quality is unknown.



Short description


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