×
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

Wood bearing resistance around bolt hole

Wood bearing resistance around bolt hole

Wood bearing resistance around bolt hole

(OP)
Hi,

I have a wood connection problem. If I have a [2x12] laying flat and I have a bolt with a washer. How do you calculate the bearing resistance of the wood under the washer. The force acting on the bolt is perpendicular to the wood. (see image below)

thank you

RE: Wood bearing resistance around bolt hole

The bearing reistance would be the area under the washer (Area of washer minus area of hole) times the allowable compression prependicular to the grain. NDS section 3.10.4 specifies that lb used for the calculation of the bearing area factor for washers shall be equal to the diameter. One thing to remember is that Fc(prep) is one of the few cases where a load duration factor is not used.

RE: Wood bearing resistance around bolt hole

NDS

RE: Wood bearing resistance around bolt hole

If this is a connection then where is the force coming from and going to?
Say that you have a 2x12 bolted on top of a steel beam and you place a upward load at one end of it and calculate the force at the bolt/washer. In this case you have a high need IMHO to also check the 2x12 for cross bending at the washer.

Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.

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