| 钢板-混凝土组合抗弯加固中滑移分布分析 |
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| 引用本文： | 聂建国,赵洁.钢板-混凝土组合抗弯加固中滑移分布分析[J].清华大学学报(自然科学版),2007,47(12):2085-2088. |
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| 作者姓名： | 聂建国 赵洁 |
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| 作者单位： | 清华大学土木工程系,结构工程与振动教育部重点实验室,北京,100084;清华大学土木工程系,结构工程与振动教育部重点实验室,北京,100084 |
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| 摘 要： | 钢板-混凝土组合抗弯加固中,钢板与混凝土之间的滑移会影响加固后钢筋混凝土构件的性能。通过对组合加固后构件的理论分析,建立滑移微分方程,模拟真实的边界条件,得到了滑移沿梁跨的分布曲线。为了验证理论分析的合理性,采用有限元分析软件AN SY S建立模型计算,其结果与理论计算结果吻合良好。根据计算结果及其比较分析可知,钢板与混凝土间栓钉连接件的抗剪刚度、间距,以及加固钢板的厚度、长度等参数均会影响滑移分布。在进行组合加固时,存在一个合理的钢板厚度,而钢板的长度则应尽可能地靠近支座。
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| 关 键 词： | 钢板-混凝土结构 组合加固 滑移分布 |
| 文章编号： | 1000-0054(2007)12-2085-04 |
| 修稿时间： | 2006年10月11 |
Slip distribution analysis of steel plate-concrete composite flexural members |
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| NIE Jianguo,ZHAO Jie.Slip distribution analysis of steel plate-concrete composite flexural members[J].Journal of Tsinghua University(Science and Technology),2007,47(12):2085-2088. |
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| Authors: | NIE Jianguo ZHAO Jie |
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| Abstract: | The slip between steel plates and concrete in steel plate-concrete composites affects the behavior of strengthened reinforced concrete members.The slip distribution between the steel plate and the concrete in a steel plate-concrete composite was analyzed theoretically to predict slip distribution curves along the strengthened flexural member.The results agree well with a finite element analysis.The study shows that the slip distribution along the beam is influenced by the shear stiffness,the spacing of the shear connectors,and the thickness and length of the steel plate.The results indicate an optional thickness of the steel plate when strengthening reinforced concrete members.Also,the end of the steel plate should be extended to the supports. |
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| Keywords: | steel plate-concrete structure composite strengthening slip distribution |
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