为使OpenSees软件的计算功能得到充分的发挥,借助ANSYS平台,利用APDL语言编写了ANSYS与OpenSees软件之间的数据接口,利用ANSYS强大的前后处理模块建立有限元模型并显示计算结果,从而实现数值分析的可视化。借助本文编制的数据接口程序,针对某钢框架结构开展了连续倒塌分析,分析结果表明:剩余结构的抗倒塌机制依据破坏位置的不同而发生改变;在中柱破坏的工况下,剩余结构具备抗弯机制与悬链线机制提供抗倒塌承载能力;在边柱破坏的工况下,剩余结构仅依靠抗弯机制提供抗倒塌承载能力。 In order to give full play to the computing function of OpenSees software, we use ANSYS platform to write the data interface between ANSYS and OpenSees software using APDL language, use ANSYS powerful pre-and post processing module to establish the finite element model and display the calculation results, Analysis of the visualization. With the help of the data interface program developed in this paper, the continuous collapse analysis of a steel frame structure was carried out. The analysis results show that the anti-collapse mechanism of the remaining structure changes according to the damage location. In the condition of the damaged column, The anti-bending mechanism and the catenary mechanism provide the anti-collapse bearing capacity; under the damaged condition of the side column, the remaining structure only provides the anti-collapse bearing capacity by means of the bending resistance mechanism.