机构地区: 同济大学
出 处: 《公路交通科技》 2004年第4期59-62,共4页
摘 要: 近年来,纤维增强复合材料(FRP)具有的高强、轻质、耐腐蚀等显著优越性能逐渐为工程界所认可,国外许多工程开始将它应用于新建的桥梁中,甚至是大跨度桥梁中。本文分析了FRP材料的特点以及与传统材料相比的突出优点,特别分析了FRP材料用于大跨度斜拉桥或悬索桥时,可以使结构的极限跨径有很大的提高,可以为一些特大跨径桥梁的设计提供新的思路。本文同时也对FRP材料的一些不足进行了分析。 This paper describes the material characteristic of FRP and the application example of FRP in long span bridge.First,mechanical properties such as high strength,light weight and high corruption resistance are investigated and compared with other materials.Then the application of FRP in long span bridge is introduced.It is analyzed that how the extreme span can be enlarged when the FRP material is adopted in cable stayed bridge or suspension bridge.Some disadvantages of FRP which should be researched further are also illustrated.Then,a long span bridge scheme in which the FRP are applied is reported in terms of design and construction of carbon fiber cable,in which the advantages of FRP can be seen.