| 基于位移的圆钢管混凝土柱抗震设计方法研究 |
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| 引用本文： | 毛小勇,肖岩. 基于位移的圆钢管混凝土柱抗震设计方法研究[J]. 工业建筑, 2007, 37(8): 28-30 |
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| 作者姓名： | 毛小勇 肖岩 |
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| 作者单位： | 苏州科技学院,土木系,苏州,215011;湖南大学,土木工程学院,长沙,410082 |
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| 基金项目： | 长江学者特聘教授启动基金 , 江苏省高校自然科学基金 |
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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。
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| 关 键 词： | 钢管混凝土柱 性能设计 位移谱 抗震设计 |
| 修稿时间： | 2007-03-15 |
DISPLACEMENT-BASED SEISMIC DESIGN OF CIRCULAR CFT COLUMNS |
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| Mao Xiaoyong,Xiao Yan. DISPLACEMENT-BASED SEISMIC DESIGN OF CIRCULAR CFT COLUMNS[J]. Industrial Construction, 2007, 37(8): 28-30 |
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| Authors: | Mao Xiaoyong Xiao Yan |
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| Affiliation: | 1.College of Civil Engineering, University of Science and Technology of Suzhou Suzhou 215011 ;2.College of Civil Engineering, Hunan University Changsha 410082 |
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| Abstract: | 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. |
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| Keywords: | CFST column performance-based design displacement response spectrum seismic design |
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