Question: Knowing u l t i m a t e = 2 0 0 MPa and u l t i m a t e = 1

Knowing ultimate=200MPa and ultimate=100MPa, select the most economical W250 wide-flanged I-beam to be used for the loading and supports shown in Fig. 5 if the safety factor is 1.3. Refer to the exam appendix for selection of I-beams and corresponding properties.
Knowing u l t i m a t e = 2 0 0 MPa and u l t i m

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