This assignment solution for a Principles of Structural Design course covers various aspects of structural engineering. It begins with an analysis of statutory requirements for structural designs, focusing on safety, fire safety, resistance to contaminants, toxic substances, sound, ventilation, sanitation, drainage, heat-producing appliances, protection from falling, conservation of fuel and power, access to buildings, glazing, and electrical safety. The assignment then delves into factors of safety for different load types (dead, imposed, and live loads), and the determination of maximum bending moments and steel beam selection. It further explores the effects of deflection in beams on structural stability, various methods of support for structures (roller, pinned, fixed, hanger, and simple supports), and the concept of slenderness ratio and effective length. The solution also examines the properties of different materials (steel and concrete) used for beams and columns, considering load-carrying capacity, dimensions, and resistance to corrosion and weathering. The assignment concludes by exploring design methods for steel and reinforced concrete beams and columns, providing a comprehensive overview of structural design principles.