Since the earthquake resistance of bridge structure and seismic effect are very difficult to be estimated accurately, there are many Bridges that have been damaged or collapsed in the earthquake.
由于人们尚难准确估计桥梁结构的抗震能力和地震作用，因而，桥梁结构在地震中破坏或倒塌的例子很多。
Seismic isolated bridge technique is an effective approach to improve seismic resistance performance of Bridges which play a prominent role in the urban lifeline system.
桥梁在城市生命线工程中占据着重要的地位，桥梁隔震技术对提高桥梁的抗震性能提供了一种有效的解决途径。
Consequently, it is quite meaningful to study the seismic resistance performance and retrofitting for reducing bridge damages and losses.
因此研究桥梁短柱的抗震性能以及抗震加固性能对于减少桥梁破坏和损失具有重要的意义。
Consequently, it is quite meaningful to study the seismic resistance performance and retrofitting for reducing bridge damages and losses.
因此研究桥梁短柱的抗震性能以及抗震加固性能对于减少桥梁破坏和损失具有重要的意义。
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