The design bending strength of a laterally unsupported beam is given by?
(1) βb\(\frac{{{z_p}{f_y}}}{{{\gamma _{mo}}}}\)
(2) βbZpfbd
(3) βbZpXLT\(\frac{{{f_y}}}{{{\gamma _{mo}}}}\)
(4) βbZp\(\frac{{{f_{bd}}}}{{{\gamma _{mo}}}}\)
1
Only (2) and (4) are correct
2
Only (4) is correct
3
Only (1) is correct
4
Only (2) and (3) are correct
5
Question Not Attempted