A steel beam is simply supported at both end is laterally loaded as in Figure Q3a(i) to bend it
plastically. The cross section is of hollow type and dimensions of the beam are shown in Figure
Q3a(ii). If the steel behaves in elastic-perfectly plastic behavior with Yield Stress of 300 MPa,
find out the value of load P, Shape Factor ƛ, Length of Plastic Lp when the critical section is in
Fully plastic condition.
Extracted text: 50mm 2P 3P 30mm 1m 1m 1m 50mm 70mm Figure Q3a(i)