尤溪水东大桥双V型墩梁固结点的局部应力分析

Local Stress Analysis on Double-V Pier-beam Fixed joint

墩梁固结点是桥梁的关键部位,也是整个桥梁中应力最复杂的的部分.为研究双V型墩梁固结点的三维应力状态,应用通用程序ANSYS建立了双V型墩梁固结点的空间有限元模型,通过模拟仿真,得到两种工况下的应力分布情况.最后,根据节点的应力集中程度以及局部应力分布规律的研究分析在设计上提出建议以改善其安全性和合理性。

Pier-beam fixed joint is the key component of a bridge and moreover the most complex part.In order to acqure the spatial stress distribution of the double-V pier-beam fixed joint,a double-V pier-beam finite element space model is established with ANSYS employed.By simulation,the spatial stress distribution of two loading cases is obtained.Finally,advice on designs is proposed to improve security and rationality after the degree of the tress concenstrating on the fixed joint and the law of local tress distributions are explored.