| 跨中带冷缝钢筋混凝土梁抗弯性能的试验研究 |
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| 引用本文： | 袁群,李宗坤,李立青,杜卫兵.跨中带冷缝钢筋混凝土梁抗弯性能的试验研究[J].混凝土,2008(8). |
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| 作者姓名： | 袁群 李宗坤 李立青 杜卫兵 |
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| 作者单位： | 1. 河南省水利科学研究院,河南,郑州,450003
2. 郑州大学,河南,郑州,450002 |
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| 摘 要： | 试验研究了跨中带冷缝钢筋混凝土梁的抗弯性能.着重分析了形成冷缝的两部分混凝土时间间隔对试验梁的裂缝、应变、挠度、延性、开裂荷载和极限荷载的影响.结果表明,试验梁的纯弯段横截面应变仍符合平截面假定;形成冷缝的时间间隔对试验梁的开裂荷载、挠度、延性有不同程度的影响;而对极限荷载的影响有限.
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| 关 键 词： | 钢筋混凝土梁 冷缝 抗弯试验 破坏机理 |
Flexural performance of RC beams in central section with inside interface |
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| YUAN Qun,LI Zong-kun,LI Li-qing,Du Wei-bing.Flexural performance of RC beams in central section with inside interface[J].Concrete,2008(8). |
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| Authors: | YUAN Qun LI Zong-kun LI Li-qing Du Wei-bing |
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| Affiliation: | YUAN Qun 1,LI Zong-kun 2,LI Li-qing 2,Du Wei-bing 1(1.Henan Hydraulic Science Institute,Zhengzhou 450003,China,2.Zhengzhou Uni |
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| Abstract: | Flexural performance of RC beams in central section with inside interface was experimentally investigated.The failure mechanism on development of crack,strain,ductile behavior,flexibility and flexural capacity,of all RC beams with inside interface for different intervals,is significantly analyzed.The results indicate that the cross-section of pure bending remains consistent with contingency-section assumption;different intervals of inside interface has diverse influence on the cracking capacity,flexibility,... |
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| Keywords: | RC beam inside interface flexural experiment failure mechanism |
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