Abstract
In Japan, many chimneys for thermal power plants over 100m high have been built. Such super-high chimneys have a more slender shape than normal structures, often having aspect ratios of 20 or more. In such cases, "tower-supported chimneys," in which the horizontal forces acting on the exhaust cylinder are supported by a truss-type steel tower, are often adopted in Japan. Chimneys are one of the important facilities for operating thermal power plants, but these are considered old since they were built more than 30 years ago. Therefore, it is important not only to design for maximum wind loads, but also to avoid damage due to cumulative loads. In this study, we attempted to model the spatial correlation characteristics of layer wind force based on wind tunnel test.
