| 体外预应力加固钢筋混凝土连续梁的试验研究 |
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| 引用本文： | 王云飞,孟少平,刘晓艳.体外预应力加固钢筋混凝土连续梁的试验研究[J].工业建筑,2009,39(12). |
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| 作者姓名： | 王云飞 孟少平 刘晓艳 |
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| 作者单位： | 1. 南京市建筑设计研究院有限责任公司,南京,210005
2. 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京,210096 |
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| 摘 要： | 通过6片体外预应力加固钢筋混凝土连续梁试验研究,以内支座相对受压区高度和预应力配筋指标为参数,得到了加固梁的变形和体外筋应力增长规律,加固梁的跨中变形与体外筋的应力增长主要分为三个阶段,且二者具有较好的相关性,加固梁在极限荷载下的内力重分布比较充分。
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| 关 键 词： | 体外预应力 连续梁 内力重分布 应力增量 |
EXPERIMENTAL STUDY ON THE FLEXURAL BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS BEAMS STRENGTHENED WITH EXTERNAL PRESTRESSING |
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| Wang Yunfei,Meng Shaoping,Liu Xiaoyan.EXPERIMENTAL STUDY ON THE FLEXURAL BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS BEAMS STRENGTHENED WITH EXTERNAL PRESTRESSING[J].Industrial Construction,2009,39(12). |
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| Authors: | Wang Yunfei Meng Shaoping Liu Xiaoyan |
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| Abstract: | With a view to different height of compression region and different prestress reinforcement index,6 reinforced concrete continuous beams strengthened with extermd prestressed tendons are investigated,including midspan deflection,stress increment of external tendons,midspan deflection and stress increment of external tendons have a good correlative relationship,increasing in 3 stages.Internal force redmtribution forms fully under ultimate loads. |
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| Keywords: | external prestressing continuous beam redistribution of internal force stress increment |
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