This study material from Desklib discusses the regulatory safety requirements for buildings and structural designs. It covers topics such as structural safety, fire safety, resistance to contaminants and moisture, ventilation, sanitation, hot water safety, and more. The document also includes information on factors of safety, maximum bending moments and steel beam selection, deflection in beams, methods of supports for structures, slenderness ratio and sufficient length in the design of columns, and properties of different materials used for beams and columns. The material also explores the use of timber as an alternative material for construction.