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| 摘要: |
| 通过对素混凝土和高密度聚乙烯(HDPE)管混凝土的轴压应力应变曲线的计算,得到了延性和韧性的表征参数--延性系数和应变能;研究了管壁厚度、核心混凝土强度对HDPE管混凝土延性和韧性的影响.结果表明,HDPE管混凝土的延性和韧性均远大于素混凝土,并随管壁厚度的增加显著提高;核心混凝土强度的增大只能有限提高HDPE管混凝土的韧性,并且会大大降低HDPE管混凝土的延性. |
| 关键词: HDPE管混凝土 塑管混凝土 延性 韧性 轴压应力应变曲线 |
| DOI： |
| 分类号:TU528.59 |
| 基金项目: |
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| Experimental Study on Ductility and Toughness of HDPE-Pipe Concrete |
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WANG Jun-yan YANG Quan-bing
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| Abstract: |
| Ductility ratio and strain energy that are regarded as the characteristic parameters of ductility and toughness were calculated from axial stress-strain curves of plain concrete and HDPE-pipe concrete.Effect of pipe thickness and core-concrete strength on ductility and toughness of HDPE-pipe concrete was studied.The results indicate that the ductility and toughness of HDPE-pipe concrete is much better than those of the plain concrete.The increase in pipe thickness can enhance the ductility and toughness of ... |
| Key words: HDPE-pipe concrete plastic pipe concrete ductility toughness axial stress-strain curves |
