基于位移的圆钢管混凝土柱抗震设计方法研究
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摘要
对基于位移的圆钢管混凝土柱抗震设计方法进行研究:首先对基于性能抗震设计方法的基本概念和原理进行介绍;并给出钢管混凝土柱基于位移抗震设计的一般过程;以解决等效刚度、等效阻尼等设计中的关键问题;最后对圆钢管混凝土柱性能设计进行具体分析,并研究相关参数的影响。结果表明:在通常范围内,第二阶段刚度系数对滞回阻尼的影响不大;随着轴压比的增加,钢管壁厚度增加,柱延性系数增加;随着截面尺寸增加,钢管壁厚度减小,屈服弯矩也减小。
Displacement-based seismic design method of concrete filled circular steel tube columns has been researched.The basic procedure,the key problems such as equivalent stiffness and damping ratio,the detail design procedure of CFT columns and the main factors related were summarized.Results show that: stiffness of the second stage has little effect on hysteretic damping ratio. As the increasing of axial loading ratio,thickness of steel tube increases and displacement ductility of CFT column also increases.As the increasing of the dimension of CFT column,thickness of steel tube and yield moment decrease.
Displacement-based seismic design method of concrete filled circular steel tube columns has been researched.The basic procedure,the key problems such as equivalent stiffness and damping ratio,the detail design procedure of CFT columns and the main factors related were summarized.Results show that: stiffness of the second stage has little effect on hysteretic damping ratio. As the increasing of axial loading ratio,thickness of steel tube increases and displacement ductility of CFT column also increases.As the increasing of the dimension of CFT column,thickness of steel tube and yield moment decrease.
引文
1程耿东,李刚.基于功能的结构抗震设计中一些问题的探讨.建筑结构学报,2000,21(1):5-11
2王亚勇.我国2000年工程抗震设计模式规范基本问题研究综述.建筑结构学报,2000,21(1):2-4,36
3弓俊青,朱唏.以位移为基础的钢筋混凝土桥梁墩柱抗震设计方法.中国公路学报,2001,14(4):42-46
4 Han S W,Wen Y K.Method of Reliability_Based Seismic DesignⅡ:Calibration of Code Parameters.Journal of Structure Engineering,1997,123(3):264-270
5左春仁,左振宇.基于地震损伤性能的抗震设计方法.大连大学学报,2000,21(6):1-7
6李国强.基于概率可靠度进行结构抗震设计的若干理论问题.建筑结构学报,2000,21(1):12-16,20
7 Pinelli Jean_Paul,Craig James I,Goodno Barry J.Energy_BasedSeismic Design of Ductile Cladding Systems.Journal of StructureEngineering,1995,121(3):567-578
8 Moehle J P.Strong Motion Drift Estimation for R/C Structure.Journalof Structure Engineering,1984,110(9):1 988-2 001
9毛小勇.钢-混凝土组合构件抗震、抗火性能及设计方法研究:[博士后出站报告].长沙:湖南大学,2004
10钟善桐.钢管混凝土结构.哈尔滨:黑龙江省科学技术出版社,1994
11韩林海.钢管混凝土结构.北京:科学出版社,2000
2王亚勇.我国2000年工程抗震设计模式规范基本问题研究综述.建筑结构学报,2000,21(1):2-4,36
3弓俊青,朱唏.以位移为基础的钢筋混凝土桥梁墩柱抗震设计方法.中国公路学报,2001,14(4):42-46
4 Han S W,Wen Y K.Method of Reliability_Based Seismic DesignⅡ:Calibration of Code Parameters.Journal of Structure Engineering,1997,123(3):264-270
5左春仁,左振宇.基于地震损伤性能的抗震设计方法.大连大学学报,2000,21(6):1-7
6李国强.基于概率可靠度进行结构抗震设计的若干理论问题.建筑结构学报,2000,21(1):12-16,20
7 Pinelli Jean_Paul,Craig James I,Goodno Barry J.Energy_BasedSeismic Design of Ductile Cladding Systems.Journal of StructureEngineering,1995,121(3):567-578
8 Moehle J P.Strong Motion Drift Estimation for R/C Structure.Journalof Structure Engineering,1984,110(9):1 988-2 001
9毛小勇.钢-混凝土组合构件抗震、抗火性能及设计方法研究:[博士后出站报告].长沙:湖南大学,2004
10钟善桐.钢管混凝土结构.哈尔滨:黑龙江省科学技术出版社,1994
11韩林海.钢管混凝土结构.北京:科学出版社,2000
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