结构振动模型和刚度矩阵对地震响应影响研究
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摘要
对平面钢框架算例模型分别采用质点系、双翼鱼刺型和杆系振动模型输入天然和人工地震波进行地震响应时程分析.在分析中,与质点系振动模型相关的结构侧移刚度矩阵由反弯点法、D值法、非线性静力分析法以及柔度法确定;与双翼鱼刺型振动模型相关的结构侧移刚度矩阵由双鱼刺法确定;与杆系振动模型相关的结构侧移刚度矩阵由矩阵位移法确定.通过算例讨论了采用上述不同方法确定的结构侧移刚度对结构地震响应影响.
The plane steel framework examples are studied as the mass-system model,two-winged fishbone-shaped model and the rod model separately.Natural and artificial seismic waves are exerted on the models,and the time history seismic responses are analyzed.The vibration model related to the structural stiffness matrix of mass-system model is determined with the anti-bend-point method,the D value method,the nonlinear static analysis method as well as the compliance method.The vibration model related to the structural stiffness matrix of two-winged fishbone-shaped model is determined with two-winged fishbone-shaped method.Then the vibration model related to the structural stiffness matrix of rod model is determined with the matrix displacement method.Results indicate that the matrix displacement method,the compliance method and the nonlinear static analysis method are more accurate,and the application conditions of anti-bend-point method are confirmed.
The plane steel framework examples are studied as the mass-system model,two-winged fishbone-shaped model and the rod model separately.Natural and artificial seismic waves are exerted on the models,and the time history seismic responses are analyzed.The vibration model related to the structural stiffness matrix of mass-system model is determined with the anti-bend-point method,the D value method,the nonlinear static analysis method as well as the compliance method.The vibration model related to the structural stiffness matrix of two-winged fishbone-shaped model is determined with two-winged fishbone-shaped method.Then the vibration model related to the structural stiffness matrix of rod model is determined with the matrix displacement method.Results indicate that the matrix displacement method,the compliance method and the nonlinear static analysis method are more accurate,and the application conditions of anti-bend-point method are confirmed.
引文
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[8]裴星洙,廖述清,张立,等.基于建筑抗震设计规范的设计用地振动分析[J].世界地震工程,2006,22(2):154-160.Pe i X ingzhu,L iao Shuq ing,Zhang L i,et al.Analyses of se ism ic waves for bu ild ing structure design based on the designcode of earthquake-resistant structures[J].World Earthquake Engineering,2006,22(2):154-160.(in Ch inese)
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[10]裴星洙,廖红建,张立.基于性能设计的建筑振动解析[M].西安:西安交通大学出版社,2006.
[2]方鹏凯,裴星洙,臧秀平.钢框架模型地震响应比较研究[J].江苏科技大学学报:自然科学版,2007,21(5):20-26.Fang Pengkai,Pe i X ingzhu,Zang X iup ing.Comparative study on steel fram e models through se ism ic response analysis[J].Journal ofJiangsu University ofScience and Technology:Natural Science Edition,2007,21(5):20-26.(in Ch i-nese)
[3]周晓松.平面框架简化为双翼鱼刺模型的方法研究[D].西安:西安交通大学,2004.
[4]汪梦甫,周锡元.高层建筑结构抗震弹塑性分析方法及抗震性能评估的研究[J].土木工程学报,2003,36(11):44-49.W angM engfu,Zhou X iyuan.Mod ified pushover analysis and se ism ic perform ance evaluation for tall bu ild ing[J].ChinaC ivil Engineering Journal,2003,36(11):44-49.(in Ch inese)
[5]陈滔,黄宗明.基于有限单元柔度法的材料与几何双重非线性空间梁柱单元比较研究[J].计算力学学报,2006,23(5):524-528.Chen Tao,Huang Zongm ing.M aterial and geom etrically non linear spatial beam-column elem ent based on the fin ite ele-m ent flexib ility m ethod[J].Chinese Journal ofComputationalM echianics,2006,23(5):524-528.(in Ch inese)
[6]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.
[7]裴星洙,刘正伟,周晓松.双翼鱼刺型振动模型基础研究[J].江苏科技大学学报:自然科学版,2007,21(6):4-8.Pe i X ingzhu,L iu Zhengwe i.E lem entary research on dual w ings fishbone-shaped vibration model[J].Journal of JiangsuUniversity ofScience and Technology:Natural Science Edition,2007,21(6):4-8.(in Ch inese)
[8]裴星洙,廖述清,张立,等.基于建筑抗震设计规范的设计用地振动分析[J].世界地震工程,2006,22(2):154-160.Pe i X ingzhu,L iao Shuq ing,Zhang L i,et al.Analyses of se ism ic waves for bu ild ing structure design based on the designcode of earthquake-resistant structures[J].World Earthquake Engineering,2006,22(2):154-160.(in Ch inese)
[9]裴星洙,张立,任正权.高层建筑结构地震响应的时程分析法[M].北京:中国水利水电出版社,2006.
[10]裴星洙,廖红建,张立.基于性能设计的建筑振动解析[M].西安:西安交通大学出版社,2006.
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