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| 预应力混凝土路面设计准则研究 | |
| 引用本文： | 孙宝俊,胡风庆,Roger K.Hawkins.预应力混凝土路面设计准则研究[J].土木工程学报,2003,36(6):71-75. |
| 作者姓名： | 孙宝俊 胡风庆 Roger K.Hawkins |
| 作者单位： | 1. 东南大学 2. 扬州大学 3. 英国诺丁汉Trent大学 |
| 基金项目： | 交通部与江苏省交通厅“九五”行业联合科技攻关课题 |
| 摘 要： | 对混凝土路面施加预应力,可显著提高其承载能力和抗变形能力,减小板的厚度和开裂的可能性,提高混凝土路面的耐久性。预应力改变了路面板的结构形式,抵抗更大的冲击、振动和超载。基于三种不同设计理念——弹性设计准则、疲劳设计准则和开裂恢复设计准则,提出了预应力混凝土路面的早期、使用阶段及开裂后计算预应力公式和设计步骤。附一个设计实例。 |
| 关 键 词： | 预应力混凝土路面 设计准则 预应力 开裂恢复 疲劳 |
| 文章编号： | 1000-131X(2003)06-0071-05 |
| 修稿时间： | 2001年4月16日 |
STUDY ON DESIGN CRITERIA FOR PRESTRESSED CONCRETE PAVEMENTS |
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| Roger K.Hawkins.STUDY ON DESIGN CRITERIA FOR PRESTRESSED CONCRETE PAVEMENTS[J].China Civil Engineering Journal,2003,36(6):71-75. | |
| Authors: | Roger KHawkins |
| Affiliation: | Sun Baojun (Southeast University) Hu Fengqing (Yangzhou University) Roger K. Hawkins (The Nottingham Trent University) |
| Abstract: | The design criteria for prestressed concrete pavements are studied in the paper. The structural behavior of the pavements is improved through prestressing; it is a greater resistance to impact, vibration, and overloading. It is found that there are three different design criteria: the elastic, the fatigue, and the recovery after cracking. A synthetically design approach for the pavements is proposed. The design procedures for the early stage, the service, and the after cracking are discussed in details. An example is used for illustration. |
| Keywords: | prestressed concrete pavements design criteria prestressing recovery after cracking fatigue |
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