| 碳纤维布加固预应力空心板承载力与延性试验分析 |
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| 引用本文： | 刘曙光,闫长旺,王刚,李俊清,王玉清.碳纤维布加固预应力空心板承载力与延性试验分析[J].建筑结构学报,2008,29(Z1):125-128. |
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| 作者姓名： | 刘曙光 闫长旺 王刚 李俊清 王玉清 |
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| 作者单位： | 内蒙古工业大学;大连理工大学;呼伦贝尔学院; |
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| 基金项目： | 内蒙古工业大学重点基金项目(ZD200702) |
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| 摘 要： | 本文通过7块足尺寸预应力混凝土空心板粘贴碳纤维布后,在均布荷载作用下的试验,进行了抗弯承载力和位移延性的研究。提出了碳纤维布加固预应力混凝土空心板延性的概念和计算方法,分析了碳纤维布不同粘贴方式、不同粘贴量对承载力和延性的影响,可以得出如下结论:碳纤维布加固预应力混凝土空心板可有效提高承载力,提高程度达48%~109%;粘贴碳纤维布后预应力混凝土空心板在预应力钢筋屈服后,其跨中挠度增长显著,显示出较好的延性。
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| 关 键 词： | 试验研究承载力 碳纤维布 延性 预应力空心板 |
Experimental analysis on flexural capacity and ductility of pre-stressed RC hollow core slab strengthened by CFRP |
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| LIU Shuguang,YAN Changwang,WANG Gang,LI Junqing,WANG Yuqing.Experimental analysis on flexural capacity and ductility of pre-stressed RC hollow core slab strengthened by CFRP[J].Journal of Building Structures,2008,29(Z1):125-128. |
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| Authors: | LIU Shuguang YAN Changwang WANG Gang LI Junqing WANG Yuqing |
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| Affiliation: | LIU Shuguang,YAN Changwang,WANG Gang,LI Junqing,WANG Yuqing (.Inner Mongolia University of Technology,Huhhot,China,.Dalian University of Technology,Dalian,China,.Hulunbuir College,Hulunber,China) |
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| Abstract: | Seven actual-dimensioned pre-stressed RC hollow core slabs strengthened by carbon fiber reinforced plastics(CFRP) are tested under the uniformed load,in which flexural capacity and displacement ductility coefficient are studied.The concept and calculation method of ductility are presented.Influences of bonding modes and strengthening quantities on flexural capacity and ductility are analyzed.The tests show that CFRP can improve effectively the flexural behavior of pre-stressed RC hollow slab from 48% to 109%,and that deflection of pre-stressed RC hollow core slabs strengthened by(CFRP) grows significantly. |
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| Keywords: | pre-stressed RC hollow core slab experimental study flexural capacity ductility |
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