| 基于施工组合缺陷的预应力箱梁试验研究 |
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| 引用本文： | 王焱,王东炜,赵湘育. 基于施工组合缺陷的预应力箱梁试验研究[J]. 河南科学, 2011, 29(4): 439-442 |
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| 作者姓名： | 王焱 王东炜 赵湘育 |
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| 作者单位： | 1. 河南工业职业技术学院建筑工程系,河南,南阳,473009
2. 郑州大学土木工程学院,郑州,450002 |
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| 基金项目： | 国家自然科学基金项目，河南省教育厅自然科学研究计划资助项目 |
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| 摘 要： | 建立了二分之一大相似比30m跨预应力混凝土箱梁模型,设定了端头混凝土浇筑严重不密实和单侧单束钢绞线张拉不到位的常见施工组合缺陷,并采用常规的方法对缺陷部位进行了加固处理,形成一典型的有施工组合缺陷的试验梁模型.通过对缺陷试验梁的静载破坏试验,考察了试验梁的受力过程和破坏形式,分析了特定施工组合缺陷对箱梁结构性能的影响.
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| 关 键 词： | 静载破坏试验 极限承载力 预应力混凝土 箱梁 大比例模型试验 施工组合缺陷 |
Experimental Study on the Behaviors of Pre-Stressed Box Beam with Constructional Assembled Deficiencies |
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| Wang Yan,Wang Dongwei,Zhao Xiangyu. Experimental Study on the Behaviors of Pre-Stressed Box Beam with Constructional Assembled Deficiencies[J]. Henan Science, 2011, 29(4): 439-442 |
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| Authors: | Wang Yan Wang Dongwei Zhao Xiangyu |
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| Affiliation: | 1.Department of Civil Engineering and Architecture,Henan Industry Polytechnic Institute,Nanyang 473009,Henan China; 2.School of Civil Engineering,Zhengzhou University,Zhengzhou 450002,China) |
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| Abstract: | A one-half scale model of the 30 m pre-stressed concrete box beam was built,and the deficiencies on the pouring and vibrating of concrete and the lacking of the tensioning of pre-stressed wires were specified.And the sticking steel strengthening was made on the deficiencies,and it was set a test beam with given assembled deficiencies.Through the dead load destructive test on the deficiency beam,the loading process and the destruction form of the beam was detected,and the influence of the constructional deficiency on the beam was researched. |
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| Keywords: | dead load destructive test limit bearing capacity pre-stressed concrete box beam large scale model test constructional assembled deficiencies |
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