October 15, 2023 at 2:47 pmMuhammad Aditya NugrahaSubscriber
In "Response Spectrum Analysis of Building" Homework, natural frequencies ranging from 2.4 Hz to 15.4 Hz were obtained. Based on what are these natural frequencies?, considering that no external loading input (such as forces, pressure, acceleration, etc.) was included during the modal analysis
October 16, 2023 at 12:59 amRaihan LutfiantoSubscriber
Hi Aditya. A very good question here. Response Spectrum model is our way of predicting structural responses due to earthquake-type and shock-type loads. So, the characteristics of this analysis are: "short", "non-deterministic", and "time-dependent". You may consider this figure.
You are correct, the x-axis here is the natural frequency of the system. To fully understand what the natural frequencies are, please refer to this material https://youtube.com/playlist?list=PLtt6-ZgUFmMLGWlLxHN_TB6MXsWbNoFaG&feature=shared. We will learn this material in 3-4 weeks from now.
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