黏滞阻尼减震技术在结构改造加固中的应用

Application of viscous damping technology in structural reconstruction and reinforcement

浦东机场T1航站楼改扩建工程,是国内大型机场航站楼不停航施工条件下进行结构加建改造设计的首例,主楼和指廊之间的连廊增加3层,既有结构需进行加固。设计中采用了黏滞阻尼器减震技术来减少结构的加固工作,并通过弹塑性时程分析验证其在大震下的结构性能。

The renovation and expansion project of T1 terminal building of Pudong Airport is the first example of structural renovation and design under the condition of non-stop construction of large airport terminal building in China.The corridor between main building and finger gallery is increased by three floors,and the existing structure needs to be strengthened.In the design,the viscous damping technology is used to reduce the reinforcement of the structure,and the elastic-plastic time history analysis is used to verify the performance of the structure under large earthquakes.