ABSTRACT
Industrial chimneys and communications (TV) towers are constructed as tall, slender reinforced-concrete structures, with industrial chimneys being constructed as single-flue or multi-flue structures. Single-flue chimneys are designed as a circular-ring cross-section having a diameter and wall thickness tapering continuously from the base to the top. Multi-flue industrial chimneys are also designed as a circular ring cross-section, usually with a constant diameter but with a reduced stepped thickness of wall as the height increases. The main structural elements of a chimney are the shaft and the foundation.
