Seismic Performance Evaluation of Isolated Bridges

• Main Authors: Yi-huan Huang, 黃翊桓
• Other Authors: 卜君平
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/05237936893369038259

碩士 === 逢甲大學 === 土木工程學系 === 101 === Lead rubber bearings are the most widely used in the structural passive control system. For example of the bridge, the energy of earthquake transfer through base to column up to upper structure, some of the energy on the bridge can scatter and disappear by using lead rubber bearing in order to achieve isolation purpose. In this study, comparison seismic capacity of traditional bridges with isolation bridges by pushover, isolated bridge which used 12 different types of lead rubber bearing. The result of this study indicates that bridges constructed with lead rubber bearings are generally more capable to withstand earthquakes than the traditional bridge. If the design of the bridge is not paired with the proper type of lead rubber bearings then the bridge will result in lower seismic capacity. In this study, it further compare the P-Delta values of the bridge columns, which turns out not to be significant enough to affect the outcome of this study.