Spectrum identification for ZF floors

[cagdaserel]

First of all, it's easy for everyone. The values that I will write below were found as a result of the studies (analysis and idealization of the past 15 earthquakes) performed by the geotechnical engineer on our ZF soil. When I imported these values in the TBDY 2018 Design spectrum creation section, I saw that the speed should be entered as m/s2 as a note. Is it the m/s2 value that comes when we multiply it by 0.4 g or is it something else? This was my first question. I observed that the spectrum I defined later on has nothing to do with the defined spectrums between ZA and ZE. (As if drawing the horizontal spectrum, there is no vertical spectrum) Is there a problem with the data entry or the data here? Thank you in advance, best regards.

 

[oguzcan]

Hello there; The value you import must be in g units. If you enter the scale factor 1, the program will multiply it by 9.81 m/s2. For example, when you look at defined spectra such as ZA, ZB, Zc, you see values such as 0.754 0.845 0.948. These values are in g and are multiplied by the gravitational acceleration of 9.81 m/s2 while processing in the background. So you have to enter values that are NOT MULTIPLICED by gravitational acceleration. Here, since the spectrum curve for which the vertical earthquake effect is calculated and the horizontal spectrum curve are defined one above the other, you see a visual like this. Best regards...