【摘要】 旅客登机桥作为连接飞机与航站楼的通道,桥体各结构部件之间的约束是非完全的,在某些方向上应视为可动体系,由于桥体在行进过程中需同时实现旋转与伸缩,桥体各部分之间的连接方式有滑动和转动,结构动态响应特性有别于一般桥梁。采用弹性时程分析法,考虑通道间的耦合影响和液压支腿底部滚轮与地面间的非线性摩擦接触,进行多遇地震激励下的结构抗震性能分析,对登机桥结构有效承载力做了定量研究。结果表明,地震激励的影响主要集中于底部基础构件,以水平方向激励的破坏尤为巨大,因而在对底部基础螺栓进行设计校核时,地震激励的影响不容忽视,并且还应该以地震激励下结构的动力响应作为设计校核的准则。更多还原

【Abstract】 Boarding is a traffic corridor between terminal building and the aircraft.The connection between different members of the boarding bridge is not rigid and in some directions,it even should be seemed as mobile system.During the period of advancing and traveling,telescopic and rotary movement will be performed simultaneously.As the bridge is formed by several parts which linked each other by slide or rotate,the dynamic response of the boarding bridge is different from other kind of bridge.With coupling affecting between tunnels and non-linear friction between bottom wheel and ground being taken into account,the seismic performance characteristic of an aerobridge is investigated based on time history analysis method.The calculating results show that the influence of the seismic excitations focuses on the foundation,especially for the destruction under horizontal seismic excitations.It shows that the criterion of structural design of foundation bolt should follow the structural actual seismic response.更多还原