| 粉煤灰贫混凝土的疲劳性能研究 |
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| 引用本文： | 赵炜诚,许志鸿.粉煤灰贫混凝土的疲劳性能研究[J].同济大学学报(自然科学版),2004,32(4):475-479. |
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| 作者姓名： | 赵炜诚 许志鸿 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 基金项目： | 上海市重点学科建设基金资助项目 |
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| 摘 要： | 粉煤灰贫混凝土具有优良的路用性能和经济适用性.水泥混凝土路面设计以综合疲劳为依据,因此,研究其疲劳性能对确定适宜的路面设计参数具有重要意义.通过室内贫混凝土小梁的弯曲疲劳试验,采用Weibull模型,得出了3种不同形式的粉煤灰贫混凝土疲劳方程,并利用已有的各种混凝土的疲劳方程和弯拉强度,提出了适用于不同强度混凝土的综合疲劳方程.
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| 关 键 词： | 粉煤灰贫混凝土 疲劳方程 应力水平 弯拉强度 |
| 文章编号： | 0253-374X(2004)04-0475-05 |
Fatigue Performance of Lean Concrete with Fly Ash |
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| ZHAO Wei-cheng,XU Zhi-hong.Fatigue Performance of Lean Concrete with Fly Ash[J].Journal of Tongji University(Natural Science),2004,32(4):475-479. |
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| Authors: | ZHAO Wei-cheng XU Zhi-hong |
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| Abstract: | Lean concrete with fly ash has excellent performance and economic applicability.The cu-rrent concrete pavement design is based on fatigue,therefore it has important significance for determining suitable pavement design parameter to research its fatigue performance.According to fatigue flexural test of lean concrete beam in the laboratory,this article puts forwards three different kinds of fatigue ~equations .Furthermore,utilizing fatigue equations and flexural strength of different kinds of concretes,a comprehensive fatigue equation which is suitable to concretes with different strength is brought forward. |
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| Keywords: | lean concrete with fly ash fatigue equation stress level flexural strength |
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