EVALUATION OF SEISMIC RESPONSE OF A PC CABLE-STAYED BRIDGE SUBJECTED TO A LONG-PERIOD GROUND MOTION AND EFFECTIVENESS OF DAMPERS
-
- SHOJI Gaku
- 筑波大学大学院システム情報工学研究科
-
- SHIBUI Takuya
- 元 筑波大学工学システム学類
Bibliographic Information
- Other Title
-
- 長周期地震動に対するPC斜張橋の地震応答特性とその制震対策
Abstract
The mechanisms associated with the seismic response of a PC cable-stayed bridge subjected to a long-period ground motion are clarified by nonlinear seismic response analyses using the simulated long-period excitations in the anticipated Nankai earthquake. A maximum displacement of 0.794m occurs at the tower top, which causes the damage to the tower bottom and tension variation of ±7.8% to the initial tension in the cables. The large residual displacement of 0.058m occurs at the tower top due to the increase of curvature at the tower bottom subjected to the subsequent ground motion. The effectiveness of the installation of viscous dampers between a deck and cables to reduce the tower response, is revealed.
Journal
-
- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
-
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 65 (1), 291-305, 2009
Japan Society of Civil Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390001205351520896
-
- NII Article ID
- 130004961162
-
- ISSN
- 21854653
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed