A fixed- end beam is subjected to a concentrated load P as shown in figure. The beam has two different segments having plastic moments MP and 2MP as shown in figure.
1
Number of plastic hinges required for complete collapse is 3
2
Collapse load is \(8.25\frac{{{M_P}}}{L}\)
3
Number of plastic hinges required for complete collapse is 2
4
Collapse load is \(7.5\frac{{{M_P}}}{L}\)