吴晓涵

(同济大学结构工程与防灾研究所，上海200092)

 

[摘要] ABAQUS.PERFORM-3D和NosaCAD被越来越多地应用于复杂结构的弹塑性分析，NosaCAD建立在AutoCAD 二次开发的基础上，在AutoCAD环境中运行，具有AutoCAD的图形处理功能，建模快捷方便，同时NosaCAD集成了非线性模型分析参数生成功能，弹塑性分析效率较高。ABAQUS、PERFORM-3D NosaCAD均具有较丰富的弹塑性分析功能，但ABAQUS和PERFORM-3D的建模和非线性参数输入较为繁琐和复杂。本文叙述了从NosaCAD至ABAQUS和PERFORM-3D弹塑性模型转换方法，通过模型转换可实现模型材料、几何参数和弹塑性分析参数的共享，从而大大提高弹塑性分析的效率。最后给出的工程实例分析结果对比，验证了模型转换程序的可应用性。

[关键词]  弹塑性时程分析；抗震性能；ABAQUS; PERFORM-3D; NosaCAD

中图分类号：TU973.14    文献标识码：A  文章编号：1002-848X(2012) S2-0207-06

 

Wu Xiaohan

(Research Institute of Structure Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China)

 

Abstract: ABAQUS, PERFORM-3D and NosaCAD have been widely applied for nonlinear structure analysis. NosaCAD is developed with ObjectARX, second development tool of AutoCAD, and runs in the AutoCAD environment, so that NosaCAD possesses the powerful geometric processing function of AutoCAD. NosaCAD also has a set of modules to deal with the parameters for nonlinear analysis. ABAQUS and PERFORM-3D have powerful nonlinear analysis functions. However, it would be time-consuming to establish building structure model in the CAE of ABAQUS and PERFORM-3D can only transform the elastic parameters for analysis model from EATBS or SAP2000. It is introduced the function modules for transfornung the nonlinear analysis model from NosaCAD to ABAQUS and PERFORM-3D in this paper. The generated models can be calculated in ABAQUS or PERFORM-3D directly and the efficiency of the nonlinear structure analysis can be improved a lot. An example model was transformed and the nonlinear time lustory analysis of the model was camed out in these three pieces of software. The agreement of the analysis results shows the applicability of the transformation.

Keywords: elasto-plastic time history analysis; seismic performance; ABAQUS; PERFORM-3D; NosaCAD