In general, the maximum allowable deflection / span ratio for the equipment is limited to L/250 (cantilever, during launching) and L/400 (simply supported, during erection / concreting).

• 总的来说最大挠度/跨度为L/250（悬臂端、推进时发生）和L/400（简支状态，起升及浇注混凝土时发生）