Open Access
Seismic Response of RC Bridge Piers Considering Soil-Pile Interaction
Takeshi Maki,Hiroshi Mutsuyoshi,Anawat Chotesuwan +2 more
- Vol. 313, pp 1-12
Abstract:
Synopsis: After the Kobe earthquake in 1995 in Japan, many reinforced concrete (RC) bridge piers have been strengthened using various techniques, such as steel jacketing and concrete jacketing. It is anticipated that, when the next strong earthquake comes, foundations will possibly be damaged because of the enhanced capacity of the pier. In this paper, the seismic response of reinforced concrete (RC) bridge piers and foundations were evaluated using the substructure pseudo-dynamic (S-PSD) testing method for cases in which strengthening was provided to the pier and foundation. The S-PSD testing method for bridge pier-foundations was first developed. Based on the developed method, damage in a foundation that supported a strengthened pier was investigated through a pier specimen loading. In addition, the response of a strengthened bridge pier with a strengthened foundation was also examined through a foundation specimen loading. The possibility of foundation damage due to pier strengthening and the effectiveness of foundation strengthening were finally confirmed.read more
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Journal ArticleDOI
Shear modulus and damping in soils: design equations and curves
TL;DR: In this paper, an equation and graph for the determination of shear modulus and damping of soils for use in design problems involving repeated loading or vibration of soils, are presented.
Book
Seismic Design and Retrofit of Bridges
TL;DR: In this article, the authors focus on designing adequate displacement and ductility capacity into new bridges, with less significance placed on strength, where a strength hierarchy is established in a bridge to ensure that damage is controllable and occurs only where the designer intends.
Journal ArticleDOI
Seismic soil-structure interaction: beneficial or detrimental?
George Mylonakis,George Gazetas +1 more
TL;DR: In this article, the role of soil-structure interaction (SSI) in the seismic response of structures is reexplored using recorded motions and theoretical considerations, and it is shown that an increase in the fundamental natural period of a moderately flexible structure due to SSI may have a detrimental effect on the imposed seismic demand.
Journal ArticleDOI
RC pile–soil interaction analysis using a 3D‐finite element method with fibre theory‐based beam elements
TL;DR: In this paper, an equivalent finite element model with reduced degrees of freedom using fiber theory-based beam element was proposed to evaluate the overall response of a structural system including its foundation and surrounding soil.