Seismic behavior of bridges with pier and foundation strengthening: PsD tests and analytical study

• DOI: 10.1002/eqe.1129
• Publication Date: 2011-05-25T11:24:50Z
• Authors: Anawat Chotesuwan; Hiroshi Mutsuyoshi; Takeshi Maki
• Keywords: 02 engineering and technology; 0201 civil engineering

SUMMARYBy means of a simplified three degrees of freedom model, seismic behavior of reinforced concrete bridge piers and foundations were evaluated based on pseudo‐dynamic (PsD) tests for cases where pier strengthening and foundation strengthening are implemented. In addition, analysis based on PsD test results was conducted to investigate the influence of pier strengthening on seismic damage to the foundation. The PsD tests and the analysis show that the foundation suffers increased hysteretic response when pier strengthening is applied. The results also show that the foundation strengthening can prevent foundation damage. Copyright © 2011 John Wiley & Sons, Ltd.