| 离心钢管混凝土的等效本构关系 |
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| 引用本文： | 金伟良, 袁伟斌, 干钢. 离心钢管混凝土的等效本构关系[J]. 工程力学, 2005, 22(2): 110-115. |
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| 作者姓名： | 金伟良 袁伟斌 干钢 |
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| 作者单位： | 1.浙江大学结构工程研究所, 浙江, 杭州, 310027;2. 浙江大学建筑设计研究院, 浙江, 杭州, 310027 |
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| 摘 要： | 在现有离心钢管混凝土本构关系分析的基础上,将离心钢管混凝土简化为同一尺度的横观各向同性体,利用在弹性状态下应变能相等原理和弹塑性状态时应力—应变呈二次抛物线变化的假定,提出了离心钢管混凝土这种组合结构新的等效本构关系。实例分析表明,模型与试验结果吻合较好,且该本构关系能客观地反映了离心钢管混凝土构件的物理力学关系,为离心钢管混凝土结构进行数值分析奠定了基础。
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| 关 键 词： | 组合结构 离心钢管混凝土 本构关系 应变能 结构设计 |
| 文章编号： | 1000-4750(2005)02-0110-06 |
| 收稿时间： | 2003-03-08 |
| 修稿时间： | 2003-07-11 |
EQUIVALENT CONSTITUTIVE RELATIONSHIP FOR CENTRIFUGE CONCRETE-FILLED STEEL TUBULAR |
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| JIN Wei-liang, YUAN Wei-bin, GAN Gang. EQUIVALENT CONSTITUTIVE RELATIONSHIP FOR CENTRIFUGE CONCRETE-FILLED STEEL TUBULAR[J]. Engineering Mechanics, 2005, 22(2): 110-115. |
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| Authors: | JIN Wei-liang YUAN Wei-bin GAN Gang |
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| Affiliation: | 1.Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China;2. Institute of Architectural Design & Research, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Based on the available theories, centrifuge concrete-filled steel tubular (CCFST) is studied by simplifying it as a kind of composite material. An analytical model for constitutive relationship of CCFST is proposed by using strain energy principle in elastic state and assuming quadratic parabolic stress and strain relationship in the elastoplastic stage. Good agreement is observed between the predictions using the proposed model and the experimental results. The present work has laid down a good foundation for further study of mechanical properties of CCFST and improvement of design methodology. |
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| Keywords: | composite structure centrifuge concrete filled steel tubular constitutive relationship strain energy structural design |
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