分离式钢箱梁不同横梁构造方案计算和比选研究

分离式钢箱梁逐步在大跨度悬索桥和斜拉桥中得到应用。针对分离式钢箱梁的连接横梁相对薄弱、构造复杂等特殊性,采用有限元软件ANSYS建立空间有限元计算模型,研究对比不同横梁构造方案的详细受力情况。通过计算分析,掌握分离式钢箱梁受力性能,使结构处于安全的受力状态,从而达到优化设计的目的,为同类桥梁设计提供参考。

Study on Calculating and Comparing Different Crossbeam Structure Schemes of Steel Slotted Box Girders

The slotted steel box girder is gradually used in the long-span suspension bridge and cable-stayed bridge.Aiming at the particularities of the weaker and complex structure of crossbeam to connect the steel slotted box girders,the article sets up the spatial finite element computation model by the finite element software ANSYS to study and compare the respective mechanical behavior of the different crossbeam structure schemes.The computation and analysis can master the mechanical behavior of slotted steel girder design,and make the structure at the security state of mechanical behavior so as to achieve the optimized design and to provide some references for the design of the same bridges.