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（西安建筑科技大學(xué)理學(xué)院， 西安 710055）
［摘要］在多尺度計(jì)算方法的基礎(chǔ)上提出了一種精確、高效的結(jié)構(gòu)局部精細(xì)化計(jì)算方法，并采用通用有限元軟件ABAQUS建立一鋼框架的精細(xì)化模型、多尺度模型、基于子結(jié)構(gòu)的多尺度模型和宏觀模型進(jìn)行受力分析。分析結(jié)果表明，基于子結(jié)構(gòu)的多尺度模型能夠達(dá)到與多尺度模型相同的計(jì)算精度，同時(shí)能夠大大提高計(jì)算效率減少計(jì)算時(shí)間，并且計(jì)算容易收斂。基于子結(jié)構(gòu)的多尺度模型為復(fù)雜結(jié)構(gòu)關(guān)鍵構(gòu)件的應(yīng)力分析提供了一種新方法。
［關(guān)鍵詞］多尺度； 子結(jié)構(gòu)； 高效率計(jì)算； 鋼框架
中圖分類號： TU311.41 文獻(xiàn)標(biāo)識碼： A文章編號： 1002-848X(2016)S2-0387-04
High efficient calculation method study of substructure-based multi-scale model
Liu Junqing, Qiao Longbang, Zhu Chao, Liu Kai
(School of Science, Xi′an University of Architecture & Technology, Xi′an 710055, China)
Abstract: An accurate and efficient calculation method is proposed based on the multi-scale method to analyze local joint. Fine finite element model, multi-scale model, substructure-based multi-scale model and macro model is developed in the general finite element software ABAQUS to analyze one and the same steel frame.The results show that: substructure-based multi-scale model has the same accuracy with multi-scale model, while the former has a high computational efficient and easy to convergence. This study provides a new method to analyze key joint of complex high-rise building.
Keywords: multi-scale; substructure; high efficiency calculation; steel frame
作者簡介： 劉俊卿，教授，博士生導(dǎo)師，Email:liujunqingjd@126.com。
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