CANNY软件在非线性动力弹塑性分析中的应用简介

Application of CANNY Software in the nonlinear dynamic elasto-plastic analysis

介绍了三维弹塑性分析程序CANNY及其在结构抗震分析中的应用。结合中国科学技术新馆项目,采用CANNY软件建立计算模型,对预应力结构、空间组合结构及钢筋混凝土结构进行精确模拟,对复杂结构做如此大规模的动力全过程状态模拟在国内尚属首次。通过非线性动力弹塑性分析,验证了中国科学技术新馆结构在罕遇地震下具有较高的安全储备和耗能能力,最大弹塑性位移远小于规范限值,地震动输入能量主要通过结构阻尼耗能。

The three-dimensional elastic-plastic analysis software CANNY and its application in seismic response analysis are introduced. The analysis model of the new China Science and Technology Museum is built in CANNY,so as to simulate the pre-stressed structure,spatial composite structure and reinforced concrete structure accurately. The dynamic elastoplastic time-history analysis of the structure is completed by using CANNY as well. It is the first time to do such a large scale dynamic elastoplastic analysis in China. The results indicate that,the elastoplastic displacement is far less than the Code limit,and the earthquake energy is mainly dissipated by the structural damping. Thus,the new China Science and Technology Museum has enough energy dissipation capacity and safety reserve under rare earthquake.