浅析桥梁结构稳定

An Analysis about Stability of Bridge Structure

对于桥梁三维空间结构体系,特别是大跨径的桥梁,其稳定性变的越来越重要,已经成为结构计算重要因素之一;通常稳定性问题分为两类,第一类稳定性问题归结为求解特征值问题,第二类稳定性归结为极限承载力问题,其与实际结构比较吻合;通过有限元理论计算实现求解极限承载力,优化指导桥梁结构设计。

The three -dimensional structure of the bridge system, in particular the long- span bridge, the stability of the increasingly important change has become an important factor in the structure of one of stability usually divided into two categories, the first category of stability reduced to solving eigenvalue problem boils down to the second category stability ultimate bearing capacity, compared with the actual structure anastomosis; calculated through finite element theory for achieving ultimate strength, optimize the structure of the bridge design guide.