We Selected of at least 11 ground motions representative of GM#2 and GM#2 but I want to ask about should we give detail data? Just is graph suitable? Do we have to use RotD100?
Details are required, along with the figure. Please refer to page 22 of the GROUND MOTION SELECTION GUIDE for further information. Yes, based on Asce 7-22, since you are matching MCEr, then you should use RotD100!
The GM2 that will be used for the shaking table will be an accelerogram scaled to match the spectrum for a specific period range (i.e. 0.05-0.3s) or scaled to match the entire area of the spectrum? Will it be a recorded or an artificial ground motion?
The GM2 response spectrum should be reasonably close to the ASCE specified spectrum in some period range (undisclosed), while it typically shows lower response intensity in the other period ranges. Remember, the ASCE specified response spectrum is an average one for a large number of ground motions. Therefore spectrum for a specific GM can only […]
When following the ground motion selection guide, the values resulting from one step are then used as inputs in the next step. Should we be using the values that are shown in the selection guide as inputs in the next step, or the values we get from the various websites? I ask because these are for some reason different. For example, the USGS disaggregation tool, when given the exact parameters shown in the selection guide, produces different results (i.e. distance = 66.85 km, not 50.33 km). Then, when searching through NGA-West2, the selection guide suggests to filter the distance to 50.33 km +/- 20 km = [30.33,70.33] km. Restating the question, should we use this value, or 66.85 km +/- 20 km = [46.85,86.85] km? Thank you!
The ground motion selection guide is provided as reference. Please use the values from the platform for your own selection. If you have trouble finding a suitable ground motion set with these new values, then use the values from the guide and state the reasons why you did not use the exact values.
I would like to ask you about the proposal submission, is it enough to send it to sdc@eeri.org ? Or what is the total procedure?
A PDF of the document must be emailed to the SDC Chairs at the following email address by the date listed on the competition website. The SDC Chairs will confirm the submission within 48 hours of receiving it. If the team does not hear back from the SDC Chairs, please reach out to confirm the […]
Is it acceptable if the land you provide appears to be slightly sloped, even though the regulations specify that it should be flat?
Assume it is flat according to the Official Rules.