Question 1

The I-section column above is fixed at its base. Its top is tied to 2 tension cables, and can be assumed to be pinned about the y-y axis and free about the x-x axis. Determine the critical buckling load P_cr.

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Step 1:
Determine direction of buckling and effective length factor K

Step 1:
Determine direction of buckling and effective length factor K

Euler’s Buckling Formula solution step 1

Step 2:
Calculate I and KL for both x-x and y-y axes

Step 2:
Calculate I and KL for both x-x and y-y axes

Euler’s Buckling Formula solution step 2

Step 3:
Calculate P_cr

Step 3:
Calculate P_cr

Euler’s Buckling Formula solution step 3

Useful formula:

Useful formula:

Now that you've mastered this question, you can try Question 2.

Question 1

Question 1

Step 1: Determine direction of buckling and effective length factor K Step 1: Determine direction of buckling and effective length factor K

Step 2: Calculate I and KL for both x-x and y-y axes Step 2: Calculate I and KL for both x-x and y-y axes

Step 3: Calculate Pcr Step 3: Calculate Pcr

Useful formula: Useful formula:

Step 1:
Determine direction of buckling and effective length factor K

Step 1:
Determine direction of buckling and effective length factor K

Step 2:
Calculate I and KL for both x-x and y-y axes

Step 2:
Calculate I and KL for both x-x and y-y axes

Step 3:
Calculate P_cr

Step 3:
Calculate P_cr

Useful formula:

Useful formula: