| 预应力加固法在土木工程中的研究应用 |
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| 引用本文： | 刘丽娜,王伟超,丁亚红.预应力加固法在土木工程中的研究应用[J].混凝土,2012(4):115-118. |
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| 作者姓名： | 刘丽娜 王伟超 丁亚红 |
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| 作者单位： | 焦作市职业教育中心学校;河南理工大学土木工程学院 |
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| 基金项目： | 国家自然科学基金(5110861);河南省重点学科项目(509919) |
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| 摘 要： | 对各种预应力加固法的研究及其应用进行了描述,包括预应力纤维复合材料片材、筋材、布材加固法及预应力拉杆加固法、预应力高强钢丝绳加固法、预应力钢绞线加固法、内嵌预应力螺旋肋钢丝加固法,这些加固方法能显著的改善原结构的受力,有效延迟裂缝的开展,限制裂缝的宽度,提高结构的承载力,增大结构的抗变形能力。
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| 关 键 词： | 混凝土结构 预应力 加固 |
Researches and applications of prestressed strengthened methods in civil engineering projects |
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| LIU Li-na,WANG Wei-chao,DING Ya-hong.Researches and applications of prestressed strengthened methods in civil engineering projects[J].Concrete,2012(4):115-118. |
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| Authors: | LIU Li-na WANG Wei-chao DING Ya-hong |
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| Affiliation: | 1.Jiaozuo Vocational Education Center School,Jiaozuo 454003,China; 2.School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454003,China) |
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| Abstract: | The prestressed strengthened methods were widely used in civil engineering projects.These strengthening material include kinds of prestressed fiber reinforced polymer/plastic,high strength steel wire rope,steel strand and spiral rib steel wire.The experiment research,reinforcement effect and engineering application of these strengthening materials and its methods were reviewed in detail.All the strengthened methods can limit the crack width,reduce the midpoint deflection,and improve the stressing performance of the strengthened beams. |
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| Keywords: | concrete structure prestressing strengthening |
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