Simulated analyses of dynamic tests for extra-dosed bridges

• Main Authors: CHIA-DI YANG, 楊加地
• Other Authors: C. S. Huang
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/24929476538132379856

碩士 === 國立交通大學 === 土木工程系所 === 95 === Extra-dosed bridges have been used in Taiwan where earthquakes occur frequently. It is necessary to investigate the dynamic properties of extra-dosed bridges in depth. The main purposes of the work are to determine the dynamic properties of extra dosed bridges from its simulated responses of dynamic tests. This thesis includes three subjects : (1) to determine the predominant period of the site where the extra-dosed bridge will be built from the ambient vibration responses of the ground；(2) to identify the model parameters of the extra-dosed bridge under consideration from its simulated earthquake responses, which are computed by the commercial finite element package SAP2000；(3) to estimate the dynamic amplification factors of the bridge from its simulated responses under different traffic loads.