| 预应力张拉施工对空间框架结构内力的影响 |
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| 引用本文： | 舒文超. 预应力张拉施工对空间框架结构内力的影响[J]. 建筑技术, 2003, 34(12): 901-903 |
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| 作者姓名： | 舒文超 |
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| 作者单位： | 上海铁路建设(集团)有限公司,200071,上海 |
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| 摘 要： | 利用SAP2000软件对预应力张拉施工过程进行分析可知，考虑钢筋混凝土框架、肋梁楼盖以及支撑体系共同工作后，预应力张拉对边跨框架梁及其附近楼板内力和变形影响较大；考虑楼板的约束作用，框架梁反拱值、梁端压缩值和梁混凝土应力等与实测值较接近；考虑肋梁楼盖的三维计算模型更能反映实际工作状况。
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| 关 键 词： | 预应力 张拉 框架结构 内力 |
| 文章编号： | 1000-4726(2003)12-0901-03 |
| 修稿时间： | 2003-06-19 |
INFLUENCE OF PRESTRESSED STRETCHING CONSTRUCTION ON INTERNAL FORCE OF SPACE FRAME STRUCTURE |
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| SHU Wenchao. INFLUENCE OF PRESTRESSED STRETCHING CONSTRUCTION ON INTERNAL FORCE OF SPACE FRAME STRUCTURE[J]. Architecture Technology, 2003, 34(12): 901-903 |
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| Authors: | SHU Wenchao |
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| Affiliation: | SHU Wenchao |
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| Abstract: | The analysis of prestressed stretching construction by software SAP2000shows that prestressed stretching has a big influ-ence on the internal force and deformation of side span frame girder and nearby floor slab when the joint action of reinforced concrete frame,ribbed beam floor and bracing system is put into consideration.The inverted arch value of frame girder,compression value of beam end and concrete stress of the beam approximate to the measured value when the restriction of the floor is put into consideration.The model can reflect the actual work situation more accurately when three dimensional calculation of ribbed beam floor is considered. |
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| Keywords: | prestress stretching frame structure internal force |
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