The "Limit State Method" is the core design philosophy of the book. Unlike the Working Stress Method (which uses a single factor of safety against yield stress), LSD considers multiple "limit states" to ensure a structure is both safe and serviceable.
Dr. N. Subramanian’s "Design of Steel Structures" is widely regarded as one of the most comprehensive textbooks on modern steel design. Unlike older books that use the Working Stress Method (WSM), this text is as per IS 800:2007 (Indian Standard). The "Limit State Method" is the core design