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奇葩独放随着工程建设和科学技术日益发展的需要,混凝土作为一种建筑材料,自问世以来一直历经着不断的发展和进步。19世纪中叶后,伴随着钢铁的生产发展,钢筋混凝土作为新型复合建筑材料开始崭露头角。钢筋可承受拉力,混凝土可承受压力,二者结合充分发挥各自优势,初步克服了混凝土抗拉强度低、用途受限制的不足。20世纪30年代,预应力混凝土以其结构的抗裂性能、刚度和承载能力大大超过钢筋混凝土结构而略胜一筹,它的出现大大拓宽了混凝土的应用范围和应用领域,使土木工程进
As the engineering construction and science and technology increasingly require, concrete as a building material, since its inception has been through continuous development and progress. After the mid-19th century, with the development of steel production, reinforced concrete began to emerge as a new type of composite building materials. Steel can withstand tension, concrete can withstand the pressure, the two combined to give full play to their respective advantages, initially overcome the low tensile strength of concrete, limited use of the limitations. In the 1930s, the prestressed concrete slightly exceeded the reinforced concrete structure with its crack resistance, rigidity and carrying capacity. Its appearance greatly broadened the application range and application fields of concrete,