Used in bridges and heavy industrial floors. Duggal explains the optimization of deep, thin webs, the design of intermediate stiffeners to prevent web buckling, and the use of the "tension field action" concept.
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:
By applying these separate factors, LSD achieves a more uniform level of structural reliability. Analysis of Core Structural Components limit state design of steel structures by sk duggal
Compression members (columns and struts) are prone to buckling before reaching their material yield strength. S.K. Duggal’s textbook simplifies the highly complex column buckling curves mandated by IS 800:2007. The ratio of effective length ( ) to the radius of gyration (
is an invaluable resource for anyone studying or practicing structural steel design. Its methodical approach, alignment with IS 800:2007, and extensive solved examples make it a must-have reference for understanding the complexities of designing safe and efficient steel structures. Used in bridges and heavy industrial floors
A core asset of S.K. Duggal's text is its alignment with standard practice and step-by-step solved examples. The book details the practical use of structural steel tables, standard rolled steel sections (such as I-beams, channels, angles, and tubes), and the calculation of wind and seismic loads. It translates abstract mathematical formulas into actionable engineering steps for plate girders, gantry girders, and roof trusses.
rely on friction between clamped plates. Duggal outlines how to calculate slip resistance at the limit state of serviceability and strength. Welded Connections Every design problem follows the literal sequence of
Design of built-up columns using lacings and battens to enhance torsional and buckling resistance. Flexural Members (Beams)
This traditional approach assumes that structural steel behaves elastically up to its service loads. Safety is ensured by keeping the stresses under working loads well below the yield stress of the material using a factor of safety. WSM often leads to overdesigned, heavy, and uneconomical structures because it neglects the reserve strength of steel beyond the elastic limit.
If you want to explore specific sections of this textbook further, let me know. I can provide a detailed for a specific component (like a bolted joint or a column), explain the mathematical formulas for block shear , or break down the slenderness ratio requirements according to standard codes. Which area Share public link
A practice quiz based on the used in the book.