摘要
为研究大跨度锥壳厂房的动力特性和地震反应,对平遥棉织厂的36m跨度的锥壳厂房进行了激振、冲击和脉动等方法的动力实测,获得了大量的实测数据。通过分析得到了该厂房的自振频率、振型和阻尼,探求了新旧厂房联接处的边界条件及该厂房的抗震性能。
To research the dynamic behaviour and earthquake response of a large span conoid shell, dynamic test was carried out of the textil mill with 36m span conoid shell in Pingyao Shanxi. Three methods were used, they were mechanic harmonic excitation, shock excitation and pulsation. We obtained a large amount of test date. Through analysis, we obtained the nature frequen cies, mode shapes and critical damping of the building. The boundary conditions in junction between old and new building and the shock resistance of the structure were researched.
关键词
厂房
锥壳
大跨度
动力特性
dynamic characteristics
shock excitation method
earthquake response
