×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Benklemen Beam Test

Benklemen Beam Test

Benklemen Beam Test

(OP)
Could someone describe what this test it?  How is it performed?  What are the test results used for.  Thank you.

RE: Benklemen Beam Test

The Benkelman Beam is a pavement deflection measuring device used to check the load vs. deflection response of a pavement structure.  Most often used on flexible pavement sections.

The test is done by starting with a relatively heavy load such as an 18 kip axle load.  This load would be distributed on a dual wheel axle such that each tire carries 4500 lbs.  You start the test by placing the beam extension between the dual wheels at their exact centerline and zero the deflection gauge.  This is the maximum deflected position.  You then pull the vehicle forward at a predetermined interval, usually 6 to 9 inches at a time, stopping at each interval to record the deflection change.  Repeat this until there is no deflection change (usually about 4 to 5 feet out).  You may then plot a deflection response curve of the pavement structure.  You may then backcalculate modulus values and can determine the structural response/capacity of the pavement.

Ron

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources