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我国目前对环形预应力电杆的结构计算一股采用试算法,即在计算截面的几何尺寸、钢材强度、混凝土标号确定之后,先给定一个钢材用量和控制应力,再核算电杆的强度、抗裂度和挠度是否满足《环形预应力电杆国家标准》的要求~2。但满足《电杆标准》要求的配筋方案,不一定就是最经济合理的。为此,有必要对电杆的强度与其抗裂
At present, China adopts a trial algorithm for structural calculation of circular prestressed electric poles. After determining the geometric dimensions of the section, steel strength, and concrete markings, first assign a steel amount and control stress, and then calculate the strength of the electric pole. Whether crack resistance and deflection meet the requirements of the National Standard for Circular Prestressed Electric Poles ~2. But the reinforcement plan that satisfies the requirements of the “pole standards” is not necessarily the most economical and reasonable. For this reason, it is necessary for the strength of the pole and its crack resistance