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IS Code gives basic wind speed averaged over a short interval of ______(a) 10 seconds(b) 20 seconds(c) 5 seconds(d) 3 secondsThis question was addressed to me in my homework.The origin of the question is Determination of Wind Loads & Load Combinations in division Structural Analysis, Loading and Load Combinations of Design of Steel Structures

Answer»

Correct answer is (d) 3 seconds

For explanation: Basic WIND speed is based on peak wind gust velocity averaged over a short interval of 3s and having return period of 50 YEARS and corresponds to mean above GROUND level in open terrain.



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