| 预应力混凝土梁桥施工裂缝的研究及处理 |
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| 引用本文： | 张巍.预应力混凝土梁桥施工裂缝的研究及处理[J].太原理工大学学报,2000,31(2):170-174. |
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| 作者姓名： | 张巍 |
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| 作者单位： | 太原理工大学建筑与环境工程学院 |
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| 摘 要： | 针对某公路大桥施工过程中两榀跨径４０ｍ的预应力混凝土Ｔ形主梁出现开裂的工程实例，分析了裂缝产生的原因；结合荷载试验的实测结果，说明了裂缝对主梁结构性能的影响。为今后判断具有同类裂缝缺陷的预应力混凝土梁能否正常使用，以及是否具备足够的承载力提供了必要的技术依据，最后提出了裂缝的处理方案。
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| 关 键 词： | 预应力混凝土梁 施工裂缝 裂缝处理 公路桥梁 |
Study and Treatment of Construction of Prestressed Concrete Beam Bridge |
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| Zhang Wei.Study and Treatment of Construction of Prestressed Concrete Beam Bridge[J].Journal of Taiyuan University of Technology,2000,31(2):170-174. |
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| Authors: | Zhang Wei |
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| Institution: | College of Civil and environment Engineering of TUT |
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| Abstract: | This paper discusses the causes of the construction crack,existing in two pre stressed concrete T beams of 40 m span during the construction of a highway bridge.By loading test data,the influences of the construction crack on structural behavior of pre stressed concrete beam are showed.It is essential to judge whether these beams with such deficiency can meet the requirements of both the ultimate state and the serviceability limit.Finally,the scheme of the crack treatment is given. |
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| Keywords: | pre stressed concrete beam construction crack load test crack treatment |
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