高层框筒结构建筑抗震性能试验研究与数值模拟  

Experimental and Numerical Investigation of the Seismic Performance of a High-rise Building with Frame-core Tube Structure

作　　者：沈超 钱德玲[1] SHEN Chao;QIAN Deling(School of Civil Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009

出　　处：《结构工程师》2019年第5期164-173,共10页Structural Engineers

基　　金：国家自然科学基金项目(51378168)。

摘　　要：为研究某框筒结构高层建筑的抗震性能,建立了缩尺比例为1/50的简化试验模型,并采用ANSYS验证了试验模型简化方法的可靠性。通过振动台试验得到了模型结构在不同烈度地震荷载作用下的固有特性和动力响应,并对该高层建筑的抗震性能进行了分析。将试验推算数据和原型结构数值模拟结果进行对比,验证了试验数据的可靠性。研究结果表明,该试验模型简化方法能够满足高层建筑抗震性能试验研究的要求;试验数据按相似比推算至原型后与数值模拟数据相吻合,验证了原型结构能够满足抗震设防要求。研究方法和成果可为振动台试验模型简化以及高层建筑抗震性能研究提供参考。To investigate the seismic performance of a high-rise building with frame-core tube structure,a 1/50 scaled simplified test model was built and the reliability of the simplified method was verified by using the ANSYS software.The inherent characteristics and dynamic responses were gained by conducting shaking table test under the excitation of different seismic magnitudes.The reliability of the test results was verified by comparing the result of numerical analysis with the calculation result based on the test data.The study result indicates that the simplified method of test model can meet the experimental investigation demand of the seismic performance of high-rise building.The calculation results based on the test data are close to that of the numerical simulation,which verifies that the prototype structure can meet the demand the code of seismic fortification.Finally,the research method and result could be provided as an reference for the model simplification of the shaking table test and the seismic performance study of the high-rise building.

关 键 词：框架-核心筒结构 振动台试验 数值模拟 动力反应 抗震性能 

分 类 号：TU9[建筑科学]