Solution0 - By EMRAH YENER INTRODUCTION: Intensity,...

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By EMRAH YENİER INTRODUCTION: Intensity, frequency content and duration are the main characteristics of the earthquake ground motions. These characteristics give information about the seismic energy of the ground motion, at which frequencies most of the energy is focused and length of the ground shaking. Many methods proposed in the literature to describe these characteristics. In this assignment, Sakarya ground motion record of 17 August 1999 earthquake is provided. This ground motion has peak ground acceleration, (PGA) of 399.365 cm/s 2 . It is asked to plot the Fourier amplitude spectrum and response spectrum and to determine the Arias intensity, Arias duration and Bracketed duration of the provided ground motion. Fourier Amplitude Spectrum (FAS): Fourier amplitude spectrum, (FAS) is a result of Fourier transformation of the ground motion. According to Fourier transformation, any random vibration can be expressed by the combination of sine waves with different frequencies, amplitudes and phases. Fourier amplitude spectrum is a plot of frequencies versus the corresponding amplitudes. It gives information about the frequency content of the ground motion and at which frequencies most of the seismic energy is concentrated.
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Solution0 - By EMRAH YENER INTRODUCTION: Intensity,...

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