Limit state design in IS 456: partial safety factors made simple
What limit states are, why loads go up and strengths come down, and where 0.446 fck and 0.87 fy come from.
Subject
RCC & Steel Design
IS 456, IS 800, limit state design and detailing.
One-way and two-way slabs: how to tell them apart and design them
The long span to short span rule, minimum steel, maximum bar spacing and span/depth ratios for RCC slabs to IS 456.
RCC columns: short or long, minimum eccentricity and axial capacity
How IS 456 classifies columns, the minimum eccentricity rule, and the formula for the axial load capacity of a short column.
Singly reinforced RCC beam: neutral axis and limiting moment
How to find the neutral axis depth, why IS 456 caps it, and how to design the steel for a given moment.
Steel tension members to IS 800: yielding, rupture and block shear
The three ways a bolted tension member can fail, with the IS 800:2007 formulas and a worked angle-section example.