摘要
某49层商住楼采用带转换层的部分框支剪力墙结构,住宅平面主轴与裙房平面主轴相差45,°导致结构采用主次梁转换,其多项指标超限.为了检验该复杂高层建筑的抗震性能,采用1∶20的比例制作了缩尺模型,在中国建筑科学研究院三向六自由度大型模拟地震振动台上进行了试验,研究了模型结构的自振特性、阻尼比、地震反应特征、破坏形态和破坏机理,并分析了原型结构的地震反应.试验结果表明,该结构在7度、8度大震作用下均具有良好的抗震性能.文中还指出了该结构的薄弱部位,并对结构设计提出了改进意见.
The partial frame-supported shear wall with transfer storey is applied to a 49-storey apartment building. As the difference in angle between the main axis of the upper storeys and that of the podium is 45°, a girder transfer structure is adopted, which results in the exceeding of several structural indexes from the limitation of current design codes. In order to investigate the aseismic performance of this complex high-rise building, a model with a scale of 1 ： 20 is fabricated and tested on the large-scale shaking-table with 3 dimensions and 6 degrees of freedom in the Chinese Academy of Building Research. Based on the test, the self-shaking properties, damping ratios, seismic responses, damage features and mechanism of the model prototype are researched, and the seismic response of the prototype structure is analyzed, indicating that the structure exhibits satisfactory aseismic performance under the action of the 7- and 8-occurred earthquakes. Moreover, the feeble parts in the structure are presented. Several suggestions are finally offered to improve the aseismic performance of the building.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第3期83-89,共7页
Journal of South China University of Technology(Natural Science Edition)
基金
广东省自然科学基金资助项目(031410)
关键词
高层建筑
复杂结构
模拟地震
振动台试验
转换层结构
high-rise building
complex structure
simulated earthquake
shaking-table test
transfer-storey structure
