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预应力混凝土路面是二十世纪四十年代后期发展起来的一种特殊的水泥混凝土路面。最早是在法国使用,后来在英国和其它欧洲国家先后用于道路路面或机场道路路面上。混凝土的主要特性就是抗压强度远大于抗拉强度。预应力混凝土路面就是充分利用这一特性,事先在工作截面上施加压应力,以提高它的抗弯拉强度,提高承受荷载能力。针对混凝土路面存在的优势与特色,现就这种路面的应用与设计进行简要的分析。
Prestressed concrete pavement is a special cement concrete pavement developed in the late 1940s. First used in France, and later in the United Kingdom and other European countries have been used for road pavement or airport road pavement. The main characteristic of concrete is the compressive strength far greater than the tensile strength. Prestressed concrete pavement is to make full use of this feature, prior to the application of compressive stress in the cross-section, in order to improve its flexural strength, improve load capacity. In view of the advantages and characteristics of concrete pavement, the application and design of this pavement are briefly analyzed.