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(同濟(jì)大學(xué)  上海 200092)
【提要】  介紹了ANSYS軟件建立鋼筋混凝土框架柱有限元模型的基本原理。在對(duì)模擬試驗(yàn)框架柱的開(kāi)裂荷載、屈服荷載、最大荷載及破壞裂縫圖與相應(yīng)的試驗(yàn)結(jié)果比較分析的基礎(chǔ)上，用ANSYS軟件模擬分析了單調(diào)荷載作用下鋼筋混凝土框架柱的裂縫分布和開(kāi)展規(guī)律。結(jié)果表明，ANSYS軟件模擬的框架柱開(kāi)裂荷載、屈服荷載及最大荷載與相應(yīng)的試驗(yàn)結(jié)果相差可控制在20%以內(nèi)；柱表面的裂縫分布、開(kāi)展及破壞規(guī)律與試驗(yàn)情況吻合較好；混凝土核心受壓區(qū)模擬的三個(gè)主拉應(yīng)力方向均有裂縫產(chǎn)生，且無(wú)規(guī)律可循，說(shuō)明核心區(qū)混凝土的受力狀態(tài)復(fù)雜。
【關(guān)鍵詞】  ANSYS軟件  有限元  鋼筋混凝土  框架柱  模擬  裂縫
Cracking Simulative Analysis of Reinforced Concrete Columns with ANSYS Software/Zhang Guojun,Lü Xilin(Tongji University,Shanghai 200092,China)
Abstract:The principle and process of finite element model of ANSYS software for RC frame column are introduced.Based on the comparing of crack load,the yield load,the maximum load and crack locations of RC frame column between the FEM calculation and test,the cracking and development rules of RC columns under monotonic load are analyzed with ANSYS software.The results show that the error of FEM simulation to test is in 20%,and the cracking distribution and development rules simulated by ANSYS accord with the test results.In the core concrete,cracks exit with no rule,which shows the bearing character of the core concrete is complex.
Keywords:ANSYS software;finite element;reinforcement concrete;frame column;simulation;crack
*國(guó)家自然科學(xué)基金創(chuàng)新研究群體資助項(xiàng)目(50321803)。