Introduction, Types of wind – Characteristics of wind – Wind velocity, Method of measurement, variation of speed with height, shape factor, aspect ratio, drag effects - Dynamic nature of wind – Pressure and suctions - Spectral studies, Gust factor. Wind Tunnel Studies, Types of tunnels, - Prediction of acceleration – Load combination factors – Wind tunnel data analysis – Calculation of Period and damping value for wind design. Design Wind speeds and risk coefficients, Design wind pressure and pressure coefficients. Classification of structures – Rigid and Flexible – Effect of wind on structures - Static and dynamic effects on Tall buildings – Chimneys. Design of Structures for wind loading – as per IS codal provisions Industrial Sheds: Types of roofing – roofing sheets – purlins – light gauge sections – built-up sections – roof trusses – pre-engineered building. Analyis and design of steel monopoles, transmission line towers, self-supporting, Guyed and Braced chimneys.