支座刚度对桥梁抗倾覆性能影响研究

Research on the influence of bearing stiffness on the anti-overturning of bridge

文章以联中独柱墩单支座桥梁为研究对象,分别建立不同参数的有限元模型,分析支座刚度差异对独柱墩桥梁抗倾覆的影响。研究结果表明,当独柱墩支座刚度不变时,桥台处支座刚度越大,桥梁抗倾覆系数随之变小;桥台与独柱墩支座刚度相同时,刚度越大,抗倾覆系数越低。

The article takes the single-column pier and single-support bridge of Lianzhong as the research object,establishes finite element models with different parameters,and analyzes the impact of bearing stiffness differences on the anti-overturning of single-column pier bridges.The research results indicate that when the stiffness of the single-column pier support remains unchanged,the greater the stiffness of the support at the abutment,the smaller the anti-overturning coefficient of the bridge;when the stiffness of the abutment and single-column pier bearings is the same,the greater the stiffness,the lower the anti-overturning coefficient.