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最近,预应力混凝土结构的发展很惊人。预应力混凝土结构曾主要在欧洲发展得较快,但是,美国从1950年建造了最初的预应力混凝土桥之后,预应力混凝土桥的数量也逐渐增加起来。这里主要介绍一下美国的预应力混凝土桥梁的发展情况。早在1896年,T·曼德尔(T·Mandl)就考虑到在混凝土中施加预应力,这就是预应力混凝土结构的开始。这个设想由法国伟大的技师 E·弗莱西奈(Eugene Fressinet)在1907～1912年间施用于几种混凝土拱桥中而
Recently, the development of prestressed concrete structures is staggering. Prestressed concrete structures have been mainly developed rapidly in Europe, however, the number of prestressed concrete bridges is gradually increasing since the United States built the initial prestressed concrete bridge in 1950. Here mainly introduce the development of the United States prestressed concrete bridges. As early as 1896, T · Mandl took into account the prestressing of concrete, which is the beginning of prestressed concrete structures. This idea was applied by the great French technician Eugene Fressinet to several concrete arch bridges from 1907 to 1912