摘要
钢结构拥有较大刚度且自重较小等优点,适用于跨度较大的桥梁结构,近年来交通事业的快速发展使钢结构桥梁得到大范围的应用。为研究某钢结构桥梁静荷载下的稳定性,运用有限元分析软件ANSYS建立钢结构桁架与混凝土桥面混合的桥梁模型,对其施加自重及车辆人群荷载,仿真计算了满载和不同程度超载工况下钢结构桥梁的位移和受力情况,并对该桥梁进行整体模态分析,以验证桥梁的整体强度。计算结果表明,该钢结构桥梁在超载工况下仍拥有较好的稳定性,且计算得出了前6阶振动周期与频率。分析结果为该桥型未来的设计与建设维护提供了参考。
Steel structure has the advantages of large rigidity and small self-weight,and is suitable for bridge structures of large span.In recent years,the rapid development of transportation industry has made steel structure bridges widely used.In order to study the stability analysis of a steel structure of static load,the finite element analysis software ANSYS was used to establish the steel trussed bridge model,and the self-weight and vehicle crowded to load were applied to simulate the steel structure bridge under full load and different overload conditions,the displacement and stress conditions,and the overall modal analysis of the bridge to verify the overall strength of the bridge.The calculation results show that the steel structured bridge still has good stability under overload conditions,and the first 6-order vibration period and frequency are calculated.It provides a reference to the future design and construction maintenance of the bridge type.
作者
陈晗
CHEN Han(China Three Gorges University,Hubei Yichang 443000,China)
出处
《电工材料》
CAS
2020年第5期59-62,共4页
Electrical Engineering Materials
