ART 3.0 - Güralp Systems Ltd
ART 3.0 - Güralp Systems Ltd
ART 3.0 - Güralp Systems Ltd
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<strong>ART</strong><br />
23. acceleration threshold to use within the computation of<br />
cumulative absolute velocity (CAV) (this must be positive). A<br />
commonly-used threshold is 0.025g [0.245m/s2];<br />
24. the number of the peak to select for computation of the<br />
sustained maximum acceleration and velocity (this must be<br />
a positive integer). A commonly-used value is 3, denoting<br />
the third peak;<br />
25. acceleration used as the limit acceleration in the calculation<br />
of bracketed absolute duration (‘Bracketed Absolute’) in the<br />
selected units of acceleration. A commonly used limit<br />
acceleration is 0.05g [0.49m/s2];<br />
26. proportion of peak ground acceleration used as the limit<br />
acceleration in the calculation of bracketed relative duration<br />
(‘Bracketed Relative’). This must be between 0 and 1;<br />
27. value of Arias intensity used as the lower threshold in the<br />
calculation of significant absolute (effective) duration in the<br />
selected units of velocity (see Bommer & Martinez-Pereira,<br />
1999) (‘Significant Absolute (Start)’). A commonly used<br />
lower limit is 0.01m/s;<br />
28. value of Arias intensity used as the upper threshold in the<br />
calculation of significant absolute (effective) duration in the<br />
selected units of velocity (see Bommer & Martinez-Pereira,<br />
1999) (‘Significant Absolute (End)’). A commonly used lower<br />
limit is 0.125m/s;<br />
29. proportion of Arias intensity used as the lower limit in the<br />
calculation of significant relative duration (‘Significant<br />
Relative (Start)’). This value must be between 0 and 1 - a<br />
commonly used lower limit is 0.05;<br />
30. proportion of Arias intensity used as the upper limit in the<br />
calculation of significant relative duration (‘Significant<br />
Relative (End)’). This value must be between 0 and 1 - a<br />
commonly used upper limit is 0.95;<br />
31. acceleration used as the limit acceleration in the calculation<br />
of uniform absolute duration (‘Uniform Absolute’) in the<br />
selected units of acceleration. A commonly used limit<br />
acceleration is 0.05g [0.49m/s2];<br />
32. proportion of peak ground acceleration used as the limit<br />
acceleration in the calculation of uniform relative duration<br />
(‘Uniform Relative’). This value must be between 0 and 1;<br />
33. cyclic damage exponent to use for the computation of the<br />
effective number of cycles. A commonly used value is 2;<br />
34. period used as lower limit in calculation of spectral intensity<br />
(‘SI limits Lower’). A commonly used lower limit is 0.1s;<br />
35. period used as upper limit in calculation of spectral intensity<br />
(‘SI limits Upper’). A commonly used upper limit is 2.5s;<br />
36. period used as lower limit in calculation of acceleration<br />
spectral intensity (‘ASI limits Lower’). A commonly used<br />
18 Issue C