| 再生混凝土梁挠度计算方法研究 |
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| 引用本文： | 杨桂新,吴瑾,叶强.再生混凝土梁挠度计算方法研究[J].工程力学,2011(2):147-151. |
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| 作者姓名： | 杨桂新 吴瑾 叶强 |
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| 作者单位： | 南京航空航天大学土木工程系; |
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| 基金项目： | 国家高技术研究发展计划(863计划)(2009AA032301) |
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| 摘 要： | 对再生混凝土梁进行了正截面弯曲性能试验.结果表明,再生混凝土梁挠度随着纵向钢筋配筋率和混凝土强度的增加而减小,再生混凝土梁实测挠度较普通混凝土结构设计规范计算值大10%左右.依据普通混凝土受弯构件挠度计算理论,通过试验回归出再生混凝土梁刚度公式中的3个系数,从而建立了再生混凝土梁挠度计算方法.国内外有关试验数据验算表明...
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| 关 键 词： | 再生骨料 混凝土梁 内力臂系数 弹塑性抵抗矩系数 不均匀系数 |
STUDY ON DEFLECTION OF RECYCLED CONCRETE BEAMS |
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| YANG Gui-xin,WU Jin,YE Qiang.STUDY ON DEFLECTION OF RECYCLED CONCRETE BEAMS[J].Engineering Mechanics,2011(2):147-151. |
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| Authors: | YANG Gui-xin WU Jin YE Qiang |
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| Affiliation: | YANG Gui-xin,WU Jin,YE Qiang(Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Flexural properties of recycled concrete beams were investigated experimentally.The results show that the deflections of recycled concrete beams decrease with increasing tension reinforcement ratio and compressive strength of recycled concrete,and that the measured deflection was larger than calculated deflection by 10% according to the code for design of ordinary concrete structures.Based on theory of ordinary concrete structures,the three coefficients in the stiffness formula were obtained by experiment a... |
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| Keywords: | recycled aggregate concrete beam internal lever-arm coefficient elastic-plastic resistance moment coefficient non-uniformly distributed strain coefficient |
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