以往,常对于具有空间结构性质的三角闸门与平面闸门一样,将门体结构简化为平面体系来设计。本文通过江苏谏壁船闸三角闸门的原型观察和空间电算得知,支座数大于两个的门体呈空间受力状态,空间桁架的空间作用明显,支座反力分配及水平支臂杆 In the past, often for the triangular gate with space structure and planar gate, the door structure is simplified as a planar system to design. In this paper, through the prototype observation and space calculation of the triangular gate of Jianbi Ship Lock in Jiangsu Province, it is known that the door body with more than two bearings is in a space-stressed state, the spatial effect of the space truss is obvious, the reaction force distribution of the support and the horizontal arm