System Ddentification of a Five-Storied Steel-Frame Structure Based on Natural Frequency Deviation with Known Mass Loading
|
|
|||||||||||
Détails bibliographiques
| Auteur(s): |
Naoki Hatakeyama
Shinichi Matsushima Fumiaki Nagashima Hiroshi Kawase |
||||
|---|---|---|---|---|---|
| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015 | ||||
| Publié dans: | IABSE Conference Nara 2015 | ||||
|
|||||
| Page(s): | 302-303 | ||||
| Nombre total de pages (du PDF): | 5 | ||||
| Année: | 2015 | ||||
| DOI: | 10.2749/222137815815775105 | ||||
| Abstrait: |
In this study, we observe microtremors on each story of a five-storied steel-frame structure, and obtain the natural frequencies up to 5th modes. By loading an added mass of pre-determined amount (2% of the total mass) to each story of the structure one by one, we observe significant changes of natural frequencies as independent information. Using these six cases of natural frequencies we identified physical parameters of each story. As a result we obtained reasonable parameters that can reproduce observed natural frequencies and modes quite well. |
||||