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Which of the following relation is correct for design horizontal seismic coefficient?(a) A = ZISa*2Rg(b) A = ZISa/2Rg(c) A = ZISa-2Rg(d) A = ZISa+2RgI got this question in an internship interview.My enquiry is from Determination of Earthquake Loads in portion Structural Analysis, Loading and Load Combinations of Design of Steel Structures

Answer»

Right choice is (b) A = ZISa/2Rg

The EXPLANATION is: Design horizontal seismic COEFFICIENT is GIVEN by A = ZISa/2Rg, where Z is zone FACTOR, R is response reduction factor, I is importance factor, Sa/g is average response acceleration coefficient.



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