(Solved): 3. Assuming that the axial load in beams 2-4 and 4-5 of the structure shown in figure 3 is approxi ...

3. Assuming that the axial load in beams 2-4 and 4-5 of the structure shown in figure 3 is approximately zero determine the following: i. Critical value of load P (i.e. Pcr) ii. The effective length of member 1-2 iii. The effective length of member 3-4 I P 2 EI L EI L P 4 EI 3 L EI 5