The structural FEM model is set up for the ultra-thin mirror with supportstructure. PV and RMS values of the mirror with horizontal or vertical optical axis are gained.
建立结构模型，对带有支撑结构的超薄反射镜进行分析，得出在光轴竖直与水平两种状态下的PV和RMS值。
2
It is also pointed out that in high formwork support system design, 2% vertical force applied as horizontal force on weaker side of formwork stiffness can assure the structure security.