在多主梁平面闸门中,主梁沿闸门高度的位置,一般是根据尽量使每个主梁所承受的水压力都相等的原则确定的。这样每个主梁所需的截面尺寸相同,便于制造。 图1表示承受相等水压的主梁布置 的图解方法。其精度不如数解法好。在 技术、施工阶段设计中,一般是采用数 解法确定主梁位置的。 In multi-girder plane gate, the position of the main beam along the gate height is generally determined according to the principle that water pressure is equal to each main beam as much as possible. The required cross-sectional dimensions of each girder are the same for ease of manufacture. Figure 1 shows a graphical representation of the main beam layout subjected to equal water pressure. Its accuracy is not as good as the number of solutions. In the design of technology and construction stage, the position of the main girder is usually determined by the numerical solution method.