纤维增强铝合金层板在军用桥梁中的应用探索

军用桥梁综合性能的提升离不开新材料的运用。纤维增强铝合金层板是目前航空航天中普遍应用的一种新材料，它轻质高强的同时还具有抗冲击、耐疲劳、易加工的优点，综合性能优于传统的 FRP 材料。根据纤维增强铝合金层板在飞机制造中的应用现状，介绍了常用纤维增强铝合金层板的主要种类及性能，分析了该材料在提高军用桥梁抗冲击与耐疲劳性能以及降低桥梁构件制造成本上的应用优势，提出了应用中需要重点解决的问题，包括适用的军用桥梁结构形式、军用桥梁刚度、桥节单元纵向连接等。

An Exploration into the Application of Fiber-Reinforced Aluminum Laminates to Military Bridges

The improvement in the comprehensive performance of military bridges could not be achieved without the application of new materials.Fiber-reinforced aluminum laminates are now widely used in the aerospace industry.It is not only light in weight and high in strength,but also has the advantages of being good in impact resistance and fatigue strength,and being easy to process,all of which make it better than traditional FRP in comprehensive performance.According to the present application of fiber reinforced aluminum laminates to the manufacture of aircraft,the application advantages of the material in improving the impact resistance and the fatigue-enduring performance of military bridges and decreasing the manufacturing cost of the members of military bridges are analyzed,with some of the important problems in its application put forward,the solution of which has to be focused on.Those problems include the right choice of the structural form of the military bridge,the structural stiff-ness and the longitudinal connections between two bridge bays.