Unlike the deterministic WSM, Duggal’s text explores how LSM uses partial safety factors for both loads and material strength to account for uncertainties. Key Features of the Text
: It is strictly aligned with IS: 800-2007 and IS: 875 (Part 3)-2015 , providing the latest standards for Indian structural engineering.
The book by S.K. Duggal
Limit State Design of Steel Structures S.K. Duggal a comprehensive textbook widely used in undergraduate and postgraduate civil engineering courses to teach modern steel design methodologies
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.