玻璃纤维增强复合材料在轻质人行天桥上的应用  

APPLICATION OF GLASS FIBER REINFORCED PLASTIC ON THE DESIGN OF LIGHTWEIGHT PASSENGER BRIDGE

作　　者：熊慧中[1] 单炜[1] 王平[1] 张大勇[1] 郭颖[1] 宋国伟[1] 邹瑾文 

机构地区：[1]东北林业大学工程咨询设计研究院,哈尔滨150040 [2]中国石油大港油田电力公司港东变电分公司,天津300280

出　　处：《玻璃钢／复合材料》2014年第5期64-68,共5页Fiber Reinforced Plastics/Composites

摘　　要：玻璃纤维增强复合材料(FRP)具有轻质、高强、减震、耐腐蚀等优良特性,已广泛应用于特殊环境中的桥梁工程。本文以FRP拉挤型材为主材料设计了一座跨度为10+10m的人行天桥,并采用有限元方法分别校核其受基本载荷、自由振动、地震冲击载荷时的力学响应。计算结果表明,该桥梁重量较小,具有较高的安全裕度和较自振频率,可有效缩短现场的施工周期。本文的分析结果对于FRP桥梁的设计具有一定的工程指导意义。Due to the advantages such as lightweight, high-strength, damping, anti-corrosion, glass fiber reinforced plastic （FRP） has been widely used in bridge engineering severing in extreme environment. This work designed a 10m ＋ 10m span passenger bridge which mainly employs the pultrusion FRP, and verified its mechanical response to the static load, free vibration and earthquake impact load by the finite element method. The results show that the bridge has low weight, with high safety margin and the natural frequency of vibration, and can effectively shorten the construction period of the scene. The analysis results in this paper would be a certain engineering significance for the FRP bridge design.

关 键 词：玻璃纤维增强复合材料 人行天桥 有限元法 桥梁设计 

分 类 号：TB332[一般工业技术—材料科学与工程]