×
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

Shear forces in small excentricities

Shear forces in small excentricities

Shear forces in small excentricities

(OP)
Dear colleagues,

I have an excentricity between 2 columns of 190mm distance from their gravity centre. At the point of excentricity I´ve a beam 0,3x0,6

Performing an hand calculation on the beam, I usually increase the shear value at a 3.d distance from the support, dividing the shear value by the reduce shear value and multiply by its 'fv'.

My question is, in FEA should I keep doing the same or should I accept directly the shear values from my model without any further increase in a 3.d distance from the support?

Thank you

agps
 

RE: Shear forces in small excentricities

the "3d" term accounts for how the structure reacts to the applied shear.  i'd say that the FEM accounts for this (by doing a way more sophisticated calc than you'd ever do by hand)   

RE: Shear forces in small excentricities

(OP)
rb1957,

Thank you for your answer.

But I still wonder, if I apply the same geometric conditions on a simple case of supported beam and with the same excentricity, I´ll get the same shear values as the FEM.

Let´s say that the value for that load is 450kN. The diagram is simple to get and is exactly the same as the FEM.

Do you still think that I should accept directly the shear values?

Thank you,

agps

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