Hi
I am trying to carry out a time history analysis, with the use of matched records from the PEER website.
My problem is that I cannot load the data files into SeismoStruct via the load function to produce the curves. I have tried so do a save as the records saved in the software files and copy my values over but still won't work.
Does anyone know which file type I should be using or know another way around it?
Rich
Inputting time history curves
Re: Inputting time history curves
Rich, SeismoStruct is quite limited in the format required for time history input files.
However, SeismoSpect has wider capabilities for reading input time histories.
I have read in PEER files by two methods:
METHOD 1:
So, here is how I use PEER files, as well as other formats for that matter:
1. Open SeismoSpect
2. On the "Input Motion" tab, select "Load"
3. Select the PEER file
4. Specify the parameter: first line, multiple values per line, etc.
5. After the file is loaded, examine the time history on the "Time Series" tab to see that the read was successful
6. Open SeismoSignal
7. In SeismoSpect, for the desired time series, select the entire acceleration column ONLY, not both aceleration and time
8. Right-click - "Copy Selection" (Note that right click will also present an option to Select All, which is tempting, but to Paste into SeismoSignal, you need to have only the acceleration column selected and copied.
9. In SeismoSignal, right-click in the acceleration column of the time series tab and select "Paste Selection"
10. If necessary, apply baseline correction and filtering in the so-named tab
11. Select File->Save Accelerogram As and give it the desired name.
This new file save in SeismoSignal will be in the appropriate format to read into SeismoStruct. It sounds worse than it is really.
METHOD 2:
1. Open SeismoSpect
2. On the "Input Motion" tab, select "Load"
3. Select the PEER file
4. Specify the parameter: first line, multiple values per line, etc.
5. After the file is loaded, examine the time history on the "Time Series" tab to see that the read was successful
6. Right click on the SeismoSpect time series data and choose "Select All"
7. Go back to SeismoStruct and in the time history files tab, select the "Create" button, NOT the "Load" button.
8. In the ensuing form, select either the time or the acceleration column, right-click, paste. Note that the entire cell in either time or acceleration needs to be selected. If the entire cell is selected, it will be blue. If you see a blinking cursor in the cell and try to Paste, nothing will happen. You must have the blue cell indicator.
I actually prefer METHOD 1 so I can save the newly formatted accelerogram.
I hope this helps and, as I say, both methods are less complicated than they appear in the detailed description.
However, SeismoSpect has wider capabilities for reading input time histories.
I have read in PEER files by two methods:
METHOD 1:
So, here is how I use PEER files, as well as other formats for that matter:
1. Open SeismoSpect
2. On the "Input Motion" tab, select "Load"
3. Select the PEER file
4. Specify the parameter: first line, multiple values per line, etc.
5. After the file is loaded, examine the time history on the "Time Series" tab to see that the read was successful
6. Open SeismoSignal
7. In SeismoSpect, for the desired time series, select the entire acceleration column ONLY, not both aceleration and time
8. Right-click - "Copy Selection" (Note that right click will also present an option to Select All, which is tempting, but to Paste into SeismoSignal, you need to have only the acceleration column selected and copied.
9. In SeismoSignal, right-click in the acceleration column of the time series tab and select "Paste Selection"
10. If necessary, apply baseline correction and filtering in the so-named tab
11. Select File->Save Accelerogram As and give it the desired name.
This new file save in SeismoSignal will be in the appropriate format to read into SeismoStruct. It sounds worse than it is really.
METHOD 2:
1. Open SeismoSpect
2. On the "Input Motion" tab, select "Load"
3. Select the PEER file
4. Specify the parameter: first line, multiple values per line, etc.
5. After the file is loaded, examine the time history on the "Time Series" tab to see that the read was successful
6. Right click on the SeismoSpect time series data and choose "Select All"
7. Go back to SeismoStruct and in the time history files tab, select the "Create" button, NOT the "Load" button.
8. In the ensuing form, select either the time or the acceleration column, right-click, paste. Note that the entire cell in either time or acceleration needs to be selected. If the entire cell is selected, it will be blue. If you see a blinking cursor in the cell and try to Paste, nothing will happen. You must have the blue cell indicator.
I actually prefer METHOD 1 so I can save the newly formatted accelerogram.
I hope this helps and, as I say, both methods are less complicated than they appear in the detailed description.
Tim Huff
Re: Inputting time history curves
Cheers Huffte.
Works, and as you said it's not as bad as it looks.
Rich
Works, and as you said it's not as bad as it looks.
Rich