摘要
在对粘滞流体阻尼墙力学特性及计算模型分析的基础上,研究其在高层建筑减震设计中的一些关键问题。以高烈度区江苏省宿迁市的一栋94.95m高的双塔建筑为工程背景,提出了阻尼墙减震体系的设防目标,并给出了减震分析的详细流程及阻尼墙的基本布置原则。通过对减震体系的非线性地震响应分析,优化了阻尼墙的初始布置方案,并在优化方案的基础上详细分析了减震体系的地震作用剪力、位移、能量耗散、加速度响应、附加阻尼比及构件进入塑性的先后顺序等问题,最后对减震体系的经济性进行了对比分析。分析表明:阻尼墙对高层建筑的抗震性能有很大的改善,相同数量阻尼墙的情况下,合理的配置方案能够提供更多的附加阻尼。研究为阻尼墙在高层建筑的减震设计中的应用提供了成功的工程案例,其设计思路可以为高层结构的减震提供有益的借鉴和参考。
After analyzing mechanical performance and computational model of viscous damper wall,some key issues were studied in its application in seismic design of high-rise building.The viscous damper walls were adopted in designing a twin tower building with a height of 94.95 meters,in the high seismic intensity city Suqian,Jiangsu province.Detailed damping analysis process and basic arrangement principles of damping walls were provided.Through non-linear seismic response analysis of damping system,initial arrangement scheme of damping wall was optimized.With regard to this optimized scheme,damping system was analyzed into detail about its seismic force,displacement,energy dissipation,acceleration response,additional damping ratio and plastic transformation order of components.Finally,the economic comparison of damping system was analyzed.A successful engineering case was provided for the application of damping walls in the damping design of high-rise building.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2010年第9期87-94,共8页
Journal of Building Structures
基金
国家自然科学基金重大研究计划项目(90815017)
国家自然科学基金项目(50908115
50688039)
关键词
粘滞流体阻尼墙
高层建筑
能量耗散
viscous damper wall
high-rise building
energy dissipation
