| Titre : | A new approximation for spectral velocity ordinates at short periods |
| Auteurs : | Vinay K. Gupta, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Earthquake engineering structural dynamics (Vol. 38 N° 7, Juin 2009) |
| Article en page(s) : | pp. 941-949 |
| Note générale : | Génie Civil |
| Langues : | Anglais |
| Index. décimale : | 624.1 (Infrastructures.Ouvrages en terre. Fondations. Tunnels) |
| Tags : | Response spectrum method ; Spectral velocity ; Pseudo spectral velocity |
| Résumé : | Response spectrum methods in earthquake-resistant design sometimes require information on the spectral velocity (SV) for a given single-degree-of-freedom oscillator and specified seismic hazard. SV has been conventionally approximated as pseudo spectral velocity (PSV) in the case of lightly damped structures that are not too flexible. This study shows that the PSV approximation may lead to large overestimation errors when the structure is stiffer to the ground motion and the ground motion is a long-period motion. It is also shown that a new approximation requiring the use of peak ground acceleration of the motion may significantly reduce these errors. |
| ISSN : | 0098-8847 |
| En ligne : | http://www3.interscience.wiley.com/journal/121539135/abstract |
