...
Laterally unbraced length of the steel element can be reduced by using steel braces.
Steel element cross-section can be increasedenlarged.
...
Symbols
Pr: Required axial strength using LRFD or ASD load combinations
Pc: Available axial strength
Mr: Required flexural strength using LRFD or ASD load combinations
Mc: Available flexural strength
x: subscript relating symbol to significant axis bending
y: subscript relating symbol to minor axis bending
...