NosaCAD與ABAQUS和PERFORM-3D彈塑性模型轉(zhuǎn)換及分析應(yīng)用
吳曉涵
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吳曉涵(同濟大學(xué)結(jié)構(gòu)工程與防災(zāi)研究所，上海200092)[摘要] ABAQUS.PERFORM-3D和NosaCAD被越來越多地應(yīng)用于復(fù)雜結(jié)構(gòu)的彈塑性分析，NosaCAD建立在AutoCAD 二次開發(fā)的基礎(chǔ)上，在AutoCAD環(huán)境中運行，具有AutoCAD的圖形處理功能，建?？旖莘奖?，同時NosaCAD集成了非線性模型分析參數(shù)生成功能，彈塑性分析效率較高。ABAQUS、PERFORM-3D NosaCAD均具有較豐富的彈塑性分析功能，但ABAQUS和PERFORM-3D的建模和非線性參數(shù)輸入較為繁瑣和復(fù)雜。本文敘述了從NosaCAD至ABAQUS和PERFORM-3D彈塑性模型轉(zhuǎn)換方法，通過模型轉(zhuǎn)換可實現(xiàn)模型材料、幾何參數(shù)和彈塑性分析參數(shù)的共享，從而大大提高彈塑性分析的效率。最后給出的工程實例分析結(jié)果對比，驗證了模型轉(zhuǎn)換程序的可應(yīng)用性。[關(guān)鍵詞] 彈塑性時程分析；抗震性能；ABAQUS; PERFORM-3D; NosaCAD中圖分類號：TU973.14 文獻標(biāo)識碼：A 文章編號：1002-848X(2012) S2-0207-06Model transformation from NosaCAD to ABAQUS and PERFORM-3D and nonlinear structure analysis by these softwareWu 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
