Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Pile Cap Design - Tensile Forces

Status
Not open for further replies.

chaechaeng

Civil/Environmental
Joined
Apr 23, 2024
Messages
5
Location
MY
Hi, I have a question, according to Reynolds' Handbook, there are two equations for determining tensile force: one that takes the column size into account and another that does not. I assumed that column size is considered when dealing with larger columns.

Are there any general guidelines or rules of thumb for deciding when to factor in the column size? Would a 400mm column be classified as a large column in this context?
4avm9khq6qjd1_bjyr1e.jpg
 
I plotted out a range of values for dimension 'a' for the 2 pile group case to compare graphically how these two values are different.
You could do the same for other cases. I figure if the column 'half width dimension, a' is greater than 10% of 'l' you get notably less tension.



pile_group_tensile_forces_vtjp4s.png
 
Since 'ignoring the column size' is not really a real scenario. It should always be safe to include column size here, the idea of ignoring the column size is to get an upper bound, or conservative answer.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top