| 自应力钢管混凝土中核心混凝土单轴本构关系 |
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| 引用本文： | 黄承逵,常旭,姜德成,宋元成.自应力钢管混凝土中核心混凝土单轴本构关系[J].大连理工大学学报,2010,50(1):81-85. |
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| 作者姓名： | 黄承逵 常旭 姜德成 宋元成 |
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| 作者单位： | 大连理工大学海岸和近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金资助项目(50578027) |
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| 摘 要： | 普通钢管混凝土短柱核心混凝土的本构关系不能满足自应力钢管混凝土轴压短柱的计算需要.在已有试验的基础上,补做了12根自应力钢管混凝土短柱轴压试验.首先测量了自应力钢管混凝土短柱在限制条件下的膨胀性能;然后对其进行了轴压承载力试验.通过对37根自应力钢管混凝土短柱轴压试验结果进行分解分析,提出一种适用于自应力钢管混凝土短柱轴压计算的等效单轴本构模型,与传统的混凝土本构关系相比,这个本构关系考虑了自应力水平和套箍系数对核心混凝土的影响,并且具有计算简单、方便的特点.
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| 关 键 词： | 自应力 钢管混凝土 本构关系 |
Constitutive relations for concrete core of self-stressing concrete-filled steel tube under axial load |
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| HUANG Chengkui,CHANG Xu,JIANG Decheng,SONG Yuancheng.Constitutive relations for concrete core of self-stressing concrete-filled steel tube under axial load[J].Journal of Dalian University of Technology,2010,50(1):81-85. |
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| Authors: | HUANG Chengkui CHANG Xu JIANG Decheng SONG Yuancheng |
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| Institution: | HUANG Cheng-kui,CHANG Xu,JIANG De-cheng,SONG Yuan-cheng State Key Laboratory of Coastal , Offshore Engineering,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | The existing constitutive relations for the concrete core of common concrete-filled steel tube short columns can not meet the need of calculation of self-stressing concrete-filled steel tube axial-compressive short columns.12 self-stressing concrete-filled steel tube short columns are tested.Firstly,the confined expansion deformation is measured.The mechanical performances of these specimens are tested later.Based on the experiments of 37 short columns,an empirical equivalent uni-axial constitutive relation... |
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| Keywords: | self-stressing concrete-filled steel tube (CFST) constitutive relations |
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