2 An axial load P is supported by a short W8 3 40 column

Chapter 1, Problem 1.22

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

An axial load P is supported by a short \(\text { W8 } \times 40\) column of crosssectional area \(A=11.7 \mathrm{in}^{2}\) and is distributed to a concrete foundation by a square plate as shown. Knowing that the average normal stress in the column must not exceed 30 ksi and that the bearing stress on the concrete foundation must not exceed 3.0 ksi, determine the side a of the plate that will provide the most economical and safe design.

Questions & Answers

QUESTION:

An axial load P is supported by a short \(\text { W8 } \times 40\) column of crosssectional area \(A=11.7 \mathrm{in}^{2}\) and is distributed to a concrete foundation by a square plate as shown. Knowing that the average normal stress in the column must not exceed 30 ksi and that the bearing stress on the concrete foundation must not exceed 3.0 ksi, determine the side a of the plate that will provide the most economical and safe design.

ANSWER:

Step 1 of 4

To calculate the safe and economic size of  bearing plate we will first calculate the maximum possible load that can act on the column. From the estimated load, we will then calculate the minimum bearing area needed for the computed load.


Add to cart


Study Tools You Might Need

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back