摘要
采用有限元法建立既有双曲拱桥的空间模型,运用空间分析对双曲拱桥的承载能力进行评定。以阳头大桥为工程实例,利用上述建模方法建立了该桥的实体有限元模型,计算了主拱圈在自重作用下的应力。在有限元模型中进行加载仿真计算,将有限元计算结果与荷载试验实测值进行对比,以评定实桥的承载能力。
The spatial analysis of existing double-curvature arch bridge by making use of finite element method is presented,by which the loading ability can be evaluated. The finite element model of double-curvature arch bridge is established and internal force caused by self-gravity of main arch is calculated. The result of finite element method is compared with that determinated by load experiment. According to the above work,loading capacity of double-curvature arch bridge can be obtained.
出处
《交通科技》
2010年第3期7-9,共3页
Transportation Science & Technology
关键词
双曲拱桥
承载能力
有限元法
double-curvature arch bridge
loading capacity
finite element method
