Question

What limit causes a reduction in the given fy for a structural steel UB or UC and why is the reduction needed?

Answer 1

UC – universal column

UB – universal beam

Universal columns are the most often used sections for structural steel purposes.Unlike a universal beam, the UC’s width is roughly equal to their depth. For example, a 152 UC 23 is 152 mm wide and 152 mm deep and 152*89 UB 16 is 89mm wide and 152mm deep. The last number (23 in this example) is the weight per meter in kilograms. It is therefore easy to work out what is the total weight of a UC by simply multiplying its weight per meter by the total length in meters. Universal columns are mainly used for columns, however, their small depth compared to universal beams make them ideal load bearing members when height is limited

PLEASE LIKE…SIR/MADAM?