| 钢管混凝土脱粘及灌浆补救效果试验研究 |
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| 引用本文： | 叶跃忠,文志红,潘绍伟.钢管混凝土脱粘及灌浆补救效果试验研究[J].西南交通大学学报,2004,39(3):381-384,393. |
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| 作者姓名： | 叶跃忠 文志红 潘绍伟 |
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| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031 |
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| 摘 要： | 对钢管与混凝土脱粘后钢管混凝土的力学性能(弹性模量和承载能力等)以及灌浆的效果进行了试验研究．结果表明，随脱粘宽度增大，钢管混凝土的弹性模量和承载能力大幅度下降，纵向和侧向变形加剧．原因在于，脱粘后钢管与混凝土不能共同承载．进行灌浆处理后，钢管混凝土原有的力学性能基本恢复．
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| 关 键 词： | 钢管混凝土 脱粘 灌浆 承载力 挠度 |
| 文章编号： | 0258-2724(2004)03-0381-05 |
Experimental Research on Separation of Concrete-filled Steel Tube and Effect of Pouring Pulp |
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| YE Yue-zhong,WEN Zhi-hong,PAN Shao-wei.Experimental Research on Separation of Concrete-filled Steel Tube and Effect of Pouring Pulp[J].Journal of Southwest Jiaotong University,2004,39(3):381-384,393. |
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| Authors: | YE Yue-zhong WEN Zhi-hong PAN Shao-wei |
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| Abstract: | The mechanical properties of concrete-filled steel tubes (CFST), including elastic modulus and load-bearing capacity etc, and the effect of pouring pulp were investigated experimentally under the condition of separation of concrete and steel tube. The result indicates that with the increase of separation width, the elastic modulus and load-bearing capacity of a CFST decrease greatly, and its longitudinal and lateral deformations increase sharply. The reason for this is that when the separation of concrete and steel tube happens, they can not bear loads together. After pulp is poured for a separated CFST, it can renew its original mechanical properties basically. |
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| Keywords: | concrete-filled steel tube separation pulp pouring load-bearing capacity deflection |
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