A significant portion of the book addresses ductile detailing. A bolted connection must be designed for bearing strength (limit state of bearing) and bolt shear, while ensuring that the net section of the plate does not rupture prematurely. Duggal stresses that connections should be stronger than the members they join—a fundamental LSM requirement.
Unlike foreign authors (like Salmon & Johnson or McCormac) who assume advanced calculus, Duggal writes for the Indian undergraduate. Every design problem follows the literal sequence of IS 800:2007 code clauses. For example, when designing a compression member: limit state design of steel structures by sk duggal
The design focuses on the laterals-torsional buckling of un-restrained beams, the effective length factor, and the bending moment reduction factor ($\alpha_LT$). Duggal’s examples highlight how LSM allows for higher utilization of steel’s plastic reserve compared to WSM. A significant portion of the book addresses ductile