碳纤维拉索试验桥的有限元模型研究  

Study of finite element model of experimental bridge with CFRP cables

作　　者：许飞[1] 

机构地区：[1]江海职业技术学院土木工程系,江苏扬州225101

出　　处：《四川建材》2010年第5期18-19,21,共3页Sichuan Building Materials

摘　　要：本文以国内首座碳纤维拉索试验桥为研究对象,主要研究了碳纤维拉索斜拉桥空间有限元模型建立中的一些基础性问题。通过选取不同的单元类型,建立了三种全桥有限元模型。然后将有限元模型的分析结果与该桥静载试验的结果进行了对比。结果表明,三种模型的精度均能满足工程要求,其中壳单元模型要优于其余两种模型,具有较高的求解精度和求解效率。Based on the first cable - stayed bridge with CFRP cables in China, the author attempts to solve some basic problems in the process of building space finite element model. The author used different type of units to established three different finite element models of full - bridge. Then structural analysis is carried out and the results calculated by established models are also compared with the results measured in the static load test of bridge. The analysis show that the precision of three models all can satisfy the engineering requirement. The model used shell element , which has both the highest calculation accuracy and computational efficiency, is better than the other models.

关 键 词：碳纤维索 斜拉桥 非线性 有限元 静载试验 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]