Research Article
Effects of Structural and Seismic Factors on the Constant-Strength Ductility Spectra Based on NGA-West2 Database
Table 2
Classification results of ground motion records based on USGS site classification.
| | Site type | Classification standard Vs30 (m/s) | Number 1 | Site type | Number 2 |
| | Site A type | >1500 | 7 | Stiff soil | 2850 | | Site B type | 760∼1500 | 101 | | Site C type | 360∼760 | 2742 | | Site D type | 180∼360 | 2533 | Soft soil | 2685 | | Site E type | <180 | 152 |
|
|
