小塘子特宽桥荷载试验与分析方法研究

随着城市交通建设的发展,我国出现了宽跨比较大的城市桥梁。此类桥横向分布效应较常规桥梁明显,以传统的桥梁平面计算程序计算活载作用效应会带来误差。针对一座宽跨比约2.3的简支空心板桥梁进行结构平面和空间加载分析,分别计算加载后桥梁的变形和应力,并与实际加载测量的变形和应力结果进行比较,分析两者的差别,为实际工程提供参考。

Analysis Method of Loading Test on Xiaotangzi Wide Bridge

With the development of infrastructure in city,more and more bridges with wide-span ration have been constructed as well.As the lateral distribution is much more apparent in this kind of bridges compared with the common ones,there would be some deviations in calculating live load effect of bridges if they were simulated in by traditional bridge modeling.Based on the analysis of simple supported hollow slab with a 2.3 width-span ration by structural plane and space loading modeling,a comparison of deformation and stress of the bridges between the calculation value and actual surveying value after loading was made to provide a practical reference for engineering works.