| 留后浇带预应力混凝土结构施工短暂状况分析 |
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| 引用本文： | 赵挺生,潘先轶,方东平.留后浇带预应力混凝土结构施工短暂状况分析[J].建筑结构,2005(4). |
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| 作者姓名： | 赵挺生 潘先轶 方东平 |
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| 作者单位： | 华中科技大学土木工程与力学学院 武汉430074清华大学土木系北京100084
(赵挺生)，清华大学土木系 北京100084
(潘先轶)，清华大学土木系 北京100084(方东平) |
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| 基金项目： | 国家自然科学基金资助项目 (5 0 3 780 5 1)，中国博士后科学基金资助项目 (2 0 0 3 ) |
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| 摘 要： | 施工期间的预应力混凝土结构是时变体系。通过预应力等效荷载分析和梁板柱混凝土结构的施工阶段受力分析,计算作用于预应力混凝土结构上的荷载。将留后浇带预应力混凝土梁模拟为弹性支座梁,研究了留后浇带预应力混凝土结构施工期间的力学性能。结果表明,预应力等效荷载和施工荷载直接影响预应力混凝土结构的施工安全。
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| 关 键 词： | 预应力混凝土结构 施工 后浇带 模型 |
Analysis of Short-time Situation of Prestressed Concrete Structures with a Strip of Post Pouring Concrete During Construction |
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| Zhao Tingsheng ,Pan Xianyi,Fang Dongping.Analysis of Short-time Situation of Prestressed Concrete Structures with a Strip of Post Pouring Concrete During Construction[J].Building Structure,2005(4). |
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| Authors: | Zhao Tingsheng Pan Xianyi Fang Dongping |
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| Affiliation: | Zhao Tingsheng 1,2,Pan Xianyi2,Fang Dongping2 |
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| Abstract: | The prestressed reinforced concrete structure during construction is a time-dependent structural system.The loads acting on it include construction load and prestressed equivalent loads.Based on the theory of prestressed concrete and time-dependent structures of beam-slab-column concrete structures during construction,the loads are studied.The structures are simulated as a beam with elastic bearing, then a model is proposed for the analysis of prestressed concrete structures with a strip of post pouring concrete during construction.Study shows that construction load and prestressed equivalent loads have obvious effect on its safety during construction. |
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| Keywords: | prestressed concrete structures construction a strip of post pouring concrete model |
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