The joints are top and seat Angle semi-rigid connections and top and seat Angle with double web Angle semi-rigid connections in steel frames.
这些节点是在钢框架中的顶底角钢半刚性连接和顶底角钢带腹板半刚性连接。
3
A finite element model of the cabin floor and its underneath structure is developed. Rigid blocks are used to simulate the structure above the cabin floor and the mass of the passenger and the seat.