采用ABAQUS有限元软件建立深圳当代艺术馆与城市规划展览馆的钢桁架与核心筒墙连接节点以及钢梁与型钢柱连接节点的分析模型,来研究其受力性能和破坏机理。结果发现考虑大变形的弹塑性有限元分析可以很好地模拟节点的受力性能,在最不利工况下节点是安全的。 ABAQUS finite element software was used to establish the analytical model of the connection between the steel truss and the core tube wall of the Shenzhen Museum of Contemporary Art and the Urban Planning Exhibition Hall, as well as the connection between the steel beam and the steel column to study the mechanical properties and failure mechanism. The results show that the elasto-plastic finite element analysis considering the large deformation can well simulate the stress behavior of the joints, and the joints are safe under the most unfavorable conditions.