摘要
高层建筑的动力特性是其自身固有的特性,一般是指其自振频率、振型及阻尼比。通过现场测试得到高层建筑的动力特性具有重要意义,既可以验证理论计算,又可以为建筑物的安全性评估及损伤识别积累基本技术资料。本文对某复杂高层建筑结构的动力特性进行了现场测试,并进行了三维有限元数值模拟。通过对实测结果和数值模拟结果进行分析,得出了该结构的自振特性,证明本文数值模拟效果良好,有足够精度。
The dynamic behaviors of high-rise buildings are commonly referred to natural frequencies, vibration modes and damping ratios. They can be investigated by means of field vibration test, and can be served as fundamental data for health estimation and damage identification, as well as the theoretical analysis. In this paper, a complex high-rise building is tested by field vibration test, and its dynamic behaviors are analyzed. Moreover, the corresponding 3D finite element model is created by comparing the numerical simulation results with the test results, and the reasonableness of numerical model is verified.
出处
《建筑科学》
CSCD
北大核心
2015年第1期110-114,共5页
Building Science
关键词
复杂高层建筑
振动测试
动力特性
数值模拟
complex high-rise building
vibration test
dynamic behavior
numerical simulation
