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| 某大跨异型现浇预应力混凝土空心板结构分析 | |
| 引用本文： | 刘航,经杰,杨学中,李俊平.某大跨异型现浇预应力混凝土空心板结构分析[J].建筑技术,2011,42(2):115-120. |
| 作者姓名： | 刘航 经杰 杨学中 李俊平 |
| 作者单位： | 1. 北京市建筑工程研究院,100039,北京 2. 清华大学建筑设计研究院,100084,北京 3. 北京建筑工程学院,100044,北京 |
| 摘 要： | 为准确计算空心板结构在荷载作用下的内力和变形，对比分析了采用拟板法、拟梁法、密肋梁法等简化计算模型与有限元实体分析模型的计算结果。结果表明．混凝土空心楼盖采用填充箱体对称布置时有着很好的各向同性性能，采用拟梁法和密肋梁法计算与框架柱相连的暗梁或拟梁时，其计算结果往往偏大很多，不宜直接采用。在此基础上。并进一步探讨了预应力筋的布置原则与方法。 |
| 关 键 词： | 现浇混凝土空心板 有限元分析 拟板法 拟梁法 预应力 大跨 异型 |
ANALYSIS OF AN IRREGULAR PLAN LONG-SPAN CAST-IN-SITU PRESTRESSED CONCRETE HOLLOW FLOOR STRUCTURE |
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| LIU Hang,JING Jie,YANG Xue-zhong,LI Jun-ping.ANALYSIS OF AN IRREGULAR PLAN LONG-SPAN CAST-IN-SITU PRESTRESSED CONCRETE HOLLOW FLOOR STRUCTURE[J].Architecture Technology,2011,42(2):115-120. | |
| Authors: | LIU Hang JING Jie YANG Xue-zhong LI Jun-ping |
| Affiliation: | LIU Hang1,JING Jie2,YANG Xue-zhong1,LI Jun-ping3(1.Beijing Building Construction Research Institute,100039,Beijing,China,2.Architectural Design and Research Institute of Tsinghua University,100084,3.Beijing University of Civil Engineering and Architecture,100044,China) |
| Abstract: | In order to accurately calculate the internal force and deformation of the hollow floor structure under loads,the calculation results of finite entity element analysis models and the simplified calculation models,such as the analogue slab method,analogue cross beam method and cross rib beam method,etc.,are compared and analyzed.The result shows that favorable isotropic property is available when concrete hollow floor structures are arranged symmetrically by using box filler.When the concealed beam or analog... |
| Keywords: | cast-in-situ concrete hollow floor finite element analysis analogue slab method analogue cross beam method prestressing long span irregular plan |
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