摘要
以某斜拉桥为工程背景,基于ANSYS建立了三维有限元分析模型,分析了斜拉桥自身的动力特性,主要包括自由振动频率、振型特性。结果表明:大跨度斜拉桥自振周期长,频谱密集,自振特性表现出明显的三维性和振型相互耦合的特点。
A cable-stayed bridge is taken for study and a established,the special dynamical characteristics of this bridge 3-D finite element analysis mode with ANSYS is are investigated, including the natural frequency, the features of natural models. The result shows that the large span cable-stayed bridge is long natural cycle,spectrumintensive, the vibration characteristics clearly show three-dimensional modes and the characteristics of mutual coupling
出处
《四川理工学院学报（自然科学版）》
CAS
2008年第5期105-107,共3页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
关键词
斜拉桥
大跨度
动力特性
有限元分析模型
cable-stayed bridge
long-span
dynamical characteristic
finite element analysis model
