基于位移的方钢管混凝土柱抗震设计方法研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
对基于位移的方钢管混凝土柱抗震设计方法进行了研究:介绍了基于位移抗震设计方法的概念、原理和设计的一般过程;探讨了方钢管混凝土柱的等效刚度、等效阻尼等设计中的关键问题,并确定了参数的具体取值;最后对方钢管混凝土柱进行了具体的基于位移的抗震设计,并研究了主要参数的影响。结果表明:在通常范围内,第二阶段刚度系数对滞回阻尼比影响不大;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 square tubular columns has been researched in this paper. The key problems such as equivalent stiffness and damping ratio, the detail design procedure of CFT columns and the main factors related with CET columns are summarized. Results show that stiffness of the second stage has little effect to hysteretic damping ratio.The thickness of steel tube and the displacement ductility of the CFT columns are both increased as increasing axial loading ratio, the thickness of steel tube and yield moment are both decreased as increasing the section dimension of the CFT columns.
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[J].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[J].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[J].中国公路学报,2001,14(4):42-46.
    [4]Han S W,Wen Y K.Method of reliability-based seismic design.Ⅱ:Calibration of code parameters.Journal of Structural 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[J].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[J].建筑结构学报,2000,21(1):12-16,20.
    [7]Pinelli J-P,Craig J I,Goodno,B J.Energy-based seismic design of ductile cladding systems.Journal of Structural Engineering.1995,121(3):567-578.
    [8]Moehle J P.Strong motion drift estimation for R/C structure.Journal of Structural Engineering.1984,110(9):1988-2001.
    [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[D].长沙:湖南大学,2004.
    [10]钟善桐.钢管混凝土结构[M].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[M].北京:科学出版社,2000.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心