Study on Numerical Simulation for Failure Process of Bridges under Strong Earthquake

• Main Authors: Shang-Yu Shi, 施相宇
• Other Authors: Bing-Chang Lin
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/50417817501895240234

碩士 === 中原大學 === 土木工程研究所 === 104 === To investigate bridge damage under near-fault and the seismic vibration effect in this study. There are three bridges involve Provincial Highway 86,Bridge No.24、Tianliao ,Bridge No.3、Yen-Feng Bridge respectively, which under three types of seismic performances, including the near-fault is acting slow and fast and general ground motion. The use of simulation software is SAP2000.Provincial Highway 86, Bridge No.24 discuss about ambient vibration test and bridge rejection. Provincial Highway 86, Bridge No.24 gain period and frequency which can compared with the model. Bridge rejection can know how the bridge applied external force when the upper structure to do elastic recovery through the lifting and traverse operations. Tianliao, Bridge No3 simulate the near-fault is acting slow and fast、considering A1 abutment joints restoration. The analytical result were compared with the observed data. The objective of Yen-Feng is the bridge suffer from earthquake that has a significant velocity-impulse and a large permanent surface displacement. To know the bridge failure differences between the near-fault earthquake and ground motion. The difference between fault and the seismic vibration that near-fault in vertical component is larger than the seismic performance.