以前,加筋混凝土水工結構的設計,通常是不考慮这种結構所固有的特征的。只是按照強度進行計算;而对混凝土耐寒性及不透水性的要求在設計中则未得到应有的注意,並且計算僅限於確定以強度为依据的混凝土标号。后來按國定全苏标准4795——538——13節的規定,根据結構的特點及作用於結構的水压力,按照不透水性的要求指定混凝土标号。而当具 In the past, the design of reinforced concrete hydraulic structures was usually without regard to the inherent characteristics of such structures. Only calculated in accordance with the strength; and concrete cold tolerance and impermeability requirements in the design is not due attention, and the calculation is limited to determine the strength of the concrete label. Later, according to the provisions of the national standard of the Soviet Union 4795--538--13, according to the characteristics of the structure and the role of the structure of the water pressure, in accordance with the requirements of impervious concrete designation. And with