| 大坝背管裂缝宽度计算公式的改进 |
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| 引用本文： | 王康平,伏义淑,田斌. 大坝背管裂缝宽度计算公式的改进[J]. 三峡大学学报(自然科学版), 2001, 23(5): 396-401 |
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| 作者姓名： | 王康平 伏义淑 田斌 |
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| 作者单位： | 三峡大学土木水电学院, |
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| 摘 要： | 指出了用现有裂缝理论计算钢衬钢筋混凝土压力管道裂缝宽度的局限性.进一步完善了"外部管壁”的力学模型,并据此导出了精确度更高的半理论半经验公式,该公式考虑了混凝土保护层内外的裂缝宽度差异.最后给出了算例.
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| 关 键 词： | 钢衬 钢筋混凝土 压力管道 裂缝宽度 |
| 文章编号： | 1007-7081(2001)05-0396-06 |
| 修稿时间： | 2001-03-12 |
Improvement in Formula for Calculating Cracking Width of Back-Pipeline of Dam |
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| Wang Kangping Fu Yishu Tian Bin. Improvement in Formula for Calculating Cracking Width of Back-Pipeline of Dam[J]. Journal of China Three Gorges University(Natural Sciences), 2001, 23(5): 396-401 |
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| Authors: | Wang Kangping Fu Yishu Tian Bin |
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| Abstract: | The limitations of present formulas for calculating crac ki ng widths of pressure pipelines made of reinforced concrete and steel liner,have been pointed out.The mechanical model for the external wall of pipelines of thi s type has been perfected further.And based on this modified model,a more accura te semi-theoretical and semi-empirical formula,which concerned the difference be tween the cracking widths inside and outside the protecting concrete layer,has b een deduced.Finally,a calculating example is given. |
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| Keywords: | steel liner reinforced concrete pressure pipeline cracking width |
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