钢筋砼空间框架结构非线性地震反应分析的超级有限元方法
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摘要
根据钢筋混凝土框架结构的受力特点,将楼板平面内刚度无限大的假定直接用于构造适合框架结构力学分析的三维27 节点非经典超级单元. 算例结果表明,提出的超级单元减少了计算工作量,又保证了一定的精度. 最后提出了空间框架结构非线性地震反应分析的高效实用方法
According to the characteristics of R/C frame structures,the hypothesis of rigid floor in plane is used for construcing 3 D non classical super element that is adapted to the mechanics analysis of frame structures.The results of numerical examples demonstrate that the proposed super element reduces the numerical working capacity and has good accuracy.A simple and versatile method of nonlinear seismic response analysis of space frames is proposed.
According to the characteristics of R/C frame structures,the hypothesis of rigid floor in plane is used for construcing 3 D non classical super element that is adapted to the mechanics analysis of frame structures.The results of numerical examples demonstrate that the proposed super element reduces the numerical working capacity and has good accuracy.A simple and versatile method of nonlinear seismic response analysis of space frames is proposed.
引文
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[3] 江 建,邹银生,何放龙.钢筋混凝土框架-剪力墙结构的空间的非线性地震反应分析[J].湖南大学学报,1997,24(5):79～85.
[4] 何放龙.一种求解大型结构非线性动力方程的实用方法[D].见:组委会主编:混凝土结构基本理论和工程应用.全国第三届学术讨论会论文集[C].长沙:湖南科技出版社,1993.
[5] 李国豪.工程结构抗震动力学[M].上海:上海科技出版社,1980
[2] 曹志远.复杂结构分析的超级元法[J].力学与实践,1992,14(4):10～14.
[3] 江 建,邹银生,何放龙.钢筋混凝土框架-剪力墙结构的空间的非线性地震反应分析[J].湖南大学学报,1997,24(5):79～85.
[4] 何放龙.一种求解大型结构非线性动力方程的实用方法[D].见:组委会主编:混凝土结构基本理论和工程应用.全国第三届学术讨论会论文集[C].长沙:湖南科技出版社,1993.
[5] 李国豪.工程结构抗震动力学[M].上海:上海科技出版社,1980
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