| 预应力法加固混凝土轴心受压构件试验研究 |
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| 引用本文： | 袁海庆,杜旌,符晶华. 预应力法加固混凝土轴心受压构件试验研究[J]. 建筑结构, 2004, 0(3): 12-13,62 |
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| 作者姓名： | 袁海庆 杜旌 符晶华 |
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| 作者单位： | 武汉理工大学,430070;湖北建科结构加固有限公司,武汉,430071 |
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| 摘 要： | 为克服现有混凝土柱加固方法的不足 ,采用专用螺栓千斤顶对混凝土轴心受压构件进行预应力法加固试验 ,使卸载和加固同步进行 ,有效地消除了二次受力应变滞后影响。加固后组合构件整体承载力得到显著提高 ,被加固构件和加固构件共同作用效果良好
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| 关 键 词： | 预应力法加固 轴心受压 混凝土柱 应变滞后 |
Experimental Research on Axial Compression Columns Strengthened with Prestressed Method |
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| Yuan Haiqing Du Jing Fu Jinghua. Experimental Research on Axial Compression Columns Strengthened with Prestressed Method[J]. Building Structure, 2004, 0(3): 12-13,62 |
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| Authors: | Yuan Haiqing Du Jing Fu Jinghua |
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| Affiliation: | Yuan Haiqing Du Jing Fu Jinghua |
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| Abstract: | In order to dispel the defects of the methods of strengthening concrete columns under axial compression,a new way called prestressing by bolt-jack is presented .The results indicate that the lagging of strain produced by repressing can be a voided,and the unloading and strengthening can be acted at the same time.The ult imate strength of the strengthened columns is increased remarkably.The added par ts and the original column work well together. |
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| Keywords: | strengthening prestress concrete column axial compression strain lagging |
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