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The Effect of Earthquake Vibration on the Deformation of the Steel Structure of a Special Moment Frame System
Abstract:
Earthquakes cause deformations in structural elements which then lead to interstory drift and probability of collapse in building structures. Incremental Dynamic Analysis (IDA) will obtain a graph containing the Response Spectral Acceleration (RSA) value for the maximum interstory drift ratio, which will then be used to calculate the probability of collapse using the Fragility Curve. The structure is planned to be located in Biak city on hard soil conditions with a 16-story two-dimensional SRPMK building model. Various ground motions scaled to the design response spectrum of Biak city with 2 different methods were used. Based on the analysis conducted, the average interstory drift value for RSA scaling (T1) is 0.33 meters and RSA scaling (T1 = 0) is 0.2 meters, both of which occur on the first floor of the building structure. The largest RSA value obtained through IDA for the RSA scaling (T1) was 1.63 g and the RSA scaling (T1 = 0) was 1.89 g. Through the Fragility Curve, the probability of structural collapse at an RSA value of 1.63 g is 0.99 and at an RSA value of 1.89 g is 0.75.
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27-38
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February 2024
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© 2024 Trans Tech Publications Ltd. All Rights Reserved
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