Guralp-systems ART Manual do Utilizador

ART 3.0Seismic Analysis and Research ToolUser guidePart No. MAN-SWA-0003Designed and manufactured byGüralp Systems Limited3 Midas House, Calleva ParkA

ARTSensorSensor type code(response-type)Units(V/A)CMG-3TB or 3V / 3ESP borehole, 360 s – 50 Hz responseCMG-3B_360S_100HZVSome English descriptions are

User guideCOILCONST=0.02575,0.01778,0.01774CALVPC=3.161CALRES=51000TYPE=CMG-3TRESPONSE=CMG-3_30S_50HZ VGRAVITY=9.80122CMG-5TD accelerometers use

ARTWhen the Ctrl or Shift key is released, a pop-up menu will appear (after a short delay) asking which add-on program you want t

User guide3 Using ARTThe following sections discuss the features currently implemented in ART and how to use them.When a time-history is l

ART3.2.1 Import data Clicking on the ‘Import data’ button at the top of the left-hand column opens up a file selection window from which the GCF time-

User guidehand list box) click on ‘Done’ and their names will be added to the list given in the central box. As stated above, the data is automaticall

ARTThe parameters that can be changed in this window are:1. units used for display of accelerations (‘Units for accelerations’) (g, m/s2, cm/s2 or mm/

User guidespectra of two or more records (0, 2, 5, 10 or 20%);6. line styles used for figures comparing the derived strong-motion parameters of two or

ART23. acceleration threshold to use within the computation of cumulative absolute velocity (CAV) (this must be positive). A commonly-used threshold i

User guidelower limit is 0.1s;37. period used as upper limit in calculation of acceleration spectral intensity (‘ASI limits Upper’). A commonly used u

ARTTable of Contents1 Introduction...42 Getting Started...

ARTThe vertical red line in each graph shows the corner frequency currently being used for the low-pass filter. Click

User guideAdding or editing earthquake informationThe earthquake date and time fields are automatically filled by ART by using the time at

ARTDeleting earthquake informationIf the user wishes to delete the entire set of information concerning the earthquake associated

User guide3.2.5 Filter time-historiesClicking on this button will filter the currently selected time-histories using a high pass bi-directional Butte

ARTWhen any of the six buttons are pressed a file selection dialog box is opened that allows the user to specify the name of the output file and the e

User guideType of data being exported file extension to useuncorrected time-histories.rawcorrected time-histories.corFourier amplitude spectra.faselas

ARTWhen exporting corrected time-histories use the extension .at2 and when exporting response spectra use extension .000. For corrected ti

User guidewhether they are sure that they wish to clear all the time-histories from memory. Clicking on ‘Yes’ clears

ARTcomparisons between the observed response spectra and predictions by GMPEs and seismic design codes.3.2.11 Strong-motion parametersClic

User guide8. sustained maximum acceleration in selected acceleration units, which is defined by Nuttli (1979) as the third (user-defined) high

User guide5 Software Change History...605.1 Changes from ART 2...

ART16. absolute significant (effective) duration in seconds, which is the interval between the Arias intensity exceeding an

User guidecalculated. The response spectra calculation must be run again if the limits given in the ‘Options’ window are changed after the response sp

ART25. number of absolute effective cycles (peak counting excluding non-zero crossings) in acceleration time-history (Hancock &a

User guide32. average spectral period (or frequency) defined by Rathje et al. (2004): .33. PGV/PGA in seconds (or Hz) (the ratio

ART3.2.12 View time-historiesClicking on this button displays the time-histories of the record that is currently selected (uncorrected if the ‘Unfilte

User guideAlso shown in this figure (if the ‘Display metadata’ option is selected in the ‘Options’ window) are the basic earthquake

ART3.2.13 View time-histories on mapIf the user has entered earthquake and station metadata for the selected time-histories, the ‘View time-hi

User guideAlso shown in this figure (if the ‘Display metadata’ option is selected in the ‘Options’ window) are the basic earthquake

ARTcomponents are selected the 3D particle motions plots also display projections of the motions onto the x-y, x-z and y-z 2D planes (i

User guide3.2.15 Husid (Arias intensity) plotAs for other functions, this button has two behaviours depending on whether single or

ART1 IntroductionART 3.0, Güralp Systems' Strong-Motion Analysis and Research Tool is a windows program which allows users of seismometers (accel

ARTAlso displayed on the graph are dashed lines showing the times the intensity first exceeds the proportion of final Arias intensity given in the ‘Op

User guidegraphical formats (.bmp, .eps, .jpg, .png or .tif) using the ‘Save figure’ option on the ‘File’ menu and printed using the ‘Print figure’ op

ARTgraph are dotted lines showing the times the energy density first exceeds the proportions of final normalized energy density given in the ‘Options’

User guidegraphical formats (.bmp, .eps, .jpg, .png or .tif) using the ‘Save figure’ option on the ‘File’ menu and printed using the ‘Print figure’

ARTrecord. Comparing these two spectra enables a choice of the high-pass cut-off frequency to be made. The figure above shows an example where a cut-o

User guidethe currently selected time-histories for the period after the pre-event portion of the record.3.2.18 Elastic response spectr

ARTto their limited applicability in engineering seismology/earthquake engineering). This calculation takes a few seconds for a no

User guide3.2.19 Elastic input energy spectraThis function has two behaviours, depending on whether single or multiple time-histories have bee

ARTThe undamped spectra are also computed but are not displayed due to their limited applicability in engineering seismo

User guide3.2.20 Drift spectraThis function has two behaviours depending on whether a single or multiple time-histories have

User guide• calculation and plotting of Fourier amplitude spectra of time-histories and of pre-event portions of records including the sig

ARTAlso shown in this figure (if the ‘Display metadata’ option is selected in the ‘Options’ window) are the basic earthquake, wavefo

User guide2. Ambraseys & Douglas (2003) (AD03);3. Ambraseys et al. (1996) /Ambraseys & Simpson (1996) (AETAL96, AS96);4. Ambraseys et al. (200

ARTcomponents are selected. Also, some GMPEs are for specific site conditions (e.g. rock) and therefore no predictions are di

User guideselected, entered the necessary information), clicking on the Compare button opens a new window displaying the predicted and observed spe

ART4 ReferencesAbrahamson, N. A., & Silva, W. J. (1997), Empirical response spectral attenuation relations for shallow crustal earthquakes. Seism

User guideBeaudet, P. R. & Wolfson, S. J. (1970), Digital filters for response spectra, Bulletin of the Seismological

ARTCampbell, K. W., & Bozorgnia, Y. (2003c), Erratum: Updated near-source ground-motion (attenuation) relations for the horizo

User guideon Seismic Hazard Analyses. EPRI, Palo Alto, CA, and the U.S. Department of Energy, Germantown, MD: 2006 1014099.European Committee for Stan

ARTmagnitude, Miscellaneous Paper S-71-1, Report 16, U.S. Army Corps of Engineers, Waterways Experiment Station, Vicksburg, Mississippi. Not seen.Ozbe

User guideToro, G.R., Abrahamson, N.A. & Schneider, J.F. (1997). Model of strong ground motions from earthquakes in Central and East

ART• calculation of number of absolute and effective cycles of acceleration using peak counting - including or excluding non-zero crossings and rainfl

ART5 Software Change History5.1 Changes from ART 2• Multiple time-histories can be selected for importation into ART.• Absolute and re

User guide5.2 Changes from ART 1• Adjusted absolute time of record to account for zero-padding added before instrument correction and

ART• The polarity of the peak ground motion parameters is now displayed.• The absolute significant (effective) duration is no

User guide6 Revision history2009-04-21 C Rewritten for ART 3.02006-09-25 B Rewritten for ART 2.02006-04-28 A Added revision historyMay 2009 63

User guide2 Getting StartedThe material in this chapter covers the installation, configuration and invocation of ART 3.0.2.1 Installing

ARTnumber (as given by the first four characters of the Stream ID) for the digitizer which produces the data stream.For example: to add calibration in

User guideTYPE=model-numbere.g. 3T, 5T, etc..• To set the response of the sensor, include the lineRESPONSE=response-type unitThe values you can use ar