| 钢板混凝土单元双轴反复加载模型研究 |
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| 引用本文： | 陈超,宋晓冰.钢板混凝土单元双轴反复加载模型研究[J].低温建筑技术,2017,39(4):15-19. |
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| 作者姓名： | 陈超 宋晓冰 |
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| 作者单位： | 上海交通大学土木工程系,上海,200240 |
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| 基金项目： | 大型先进压水堆核电站重大专项 |
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| 摘 要： | 进行了钢板混凝土组合构件(SCS)单元双轴拉压反复加载研究,在已有的研究基础上,根据弹塑性力学基本理论推导出SCS单元在各个加载卸载阶段的单元刚度,建立了SCS单元平面内双轴拉压反复加载模型。用该模型与本课题组做过的4个钢板混凝土组合构件(SCS)单元双轴反复加载试验结果对比,发现了加载卸载时,材料双向应变关系的变化。重点研究不同含钢率和不同加载比例下的刚度以及残余应变等方面的差异,发现本模型结果与试验结果非常吻合。
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| 关 键 词： | 钢板混凝土组合构件单元 双轴 双向应变关系 残余应变 |
RESEARCH ON STEEL-CONCRETE COMPOSITE PANEL SUBJECTED TO BIAXIAL CYCLIC LOADING |
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| CHEN Chao,SONG Xiaobing.RESEARCH ON STEEL-CONCRETE COMPOSITE PANEL SUBJECTED TO BIAXIAL CYCLIC LOADING[J].Low Temperature Architecture Technology,2017,39(4):15-19. |
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| Authors: | CHEN Chao SONG Xiaobing |
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| Abstract: | The steel-concrete composite panel with biaxial cyclic loading was studied in the paper,and then based on the basic theory of elastic-plastic mechanics,the element stiffness matrices during each biaxial loading and unloading stage were deduced and the plane biaxial tension compression model for steel-concrete composite panel was established.This model was compared with four specimens that had been tested by our group,and the change of the material biaxial strain relationship during the loading and the unloading was found.Additionally,the paper mainly studied the difference in the stiffness and residual strain of the panel with different steel ratios and different loading ratios.It was found that the results of this model were in good agreement with the experimental results. |
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| Keywords: | steel-concrete composite panel biaxial the relationship between biaxial strains residual strain |
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