摘要
银泰中心主塔楼为北京CBD标志性建筑之一,楼高249.9m,共62层,为超高层钢结构,是我国首次在新建超高层钢结构建筑中采用消能减震措施。阐述了结构耗能减振的研究及发展现状,给出了北京银泰中心主塔楼的结构方案设计的特点,然后对线性及非线性液体粘滞阻尼器的工作原理及特点进行对比,并介绍了主塔楼阻尼器的楼层布置及所采用的支撑类型。通过计算表明在设置非线性粘滞阻尼器后,银泰中心主塔楼的风振加速度降低,主塔楼的抗震性能同时得到了改善。通过能量原理得到了工程设置粘滞阻尼器后的附加阻尼比。最后对阻尼器的测试情况作了介绍,测试结果表明银泰中心用阻尼器的性能达到设计要求。
The Silvertie Hotel is one of the dominant super high-rise structures in the Central Business District of Beijing. The 62 stories building 249.9 meters height is the first in China to adopt the energy dissipation technology. This article briefly introduces the research and the development of the liquid viscous dampers by way of describing the structural characters of the Silvertie building, explaining the working principles of the linear and non-linear liquid viscous damper, then recommends the layout of the dampers as well as gives the damper connection configuration adopted in this building. The damping technology can successfully reduce the acceleration caused by the wind vibration, greatly improve aseismatic performance. The paper gives an additional damping ratio of the project with viscous dampers using energy principle. Finally the process of the damper testing is introduced, the testing results indicate that the dampers dynamic performance has reached the standard of the design.
出处
《建筑结构》
CSCD
北大核心
2009年第5期23-28,33,共7页
Building Structure
