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电杆标准化图紙設計的直綫杆(中間杆),其计算原理和步骤如下: 电杆桔构計算仍按破损阶段理論,因国内尙没有訂出按极限状态理論設計电杆所必须的荷载系数,工作条件系数和材料强度系数。一、杆身强度計算 1.荷载:直綫杆只按正常情况考虑,并按运輪及吊装情况驗算。其基本荷截是自重导线及复冰重量(垂直荷載)和风压(水平荷载)等。并按下列气象条件計算电杆的荷重: 1)无复冰但有設計最大风速。 2)有复冰,同时有相应的风速。
Pole standard drawing design of the straight rod (middle rod), the calculation principles and steps are as follows: Electromagnetic orange pole calculation is still based on the theory of damage stage, because the national economy does not set out according to the limit state theory of electric pole design of the necessary load factor , Working condition coefficient and material strength coefficient. First, the shaft strength calculation 1 load: straight rod only considered under normal circumstances, and according to the wheel and lifting checked. The basic load is self-weight conductor and ice weight (vertical load) and wind pressure (horizontal load) and so on. And according to the following meteorological conditions calculate the load of electric pole: 1) No ice but the maximum wind speed design. 2) there is ice, while the corresponding wind speed.