梁格法与单梁法计算变截面箱梁的比较分析  

Comparative Analysis of Grid Frame Method and Single Girder Method in Calculating Variable Cross-Section Box Girder

作　　者：吴念[1] 潘盛山[1] 

机构地区：[1]大连理工大学桥梁工程研究所,辽宁大连116023

出　　处：《山东交通学院学报》2010年第2期42-47,共6页Journal of Shandong Jiaotong University

摘　　要：通过比较梁格法与单梁法计算的变截面箱梁各腹板的应力,说明箱梁宽度变化越大,边腹板和中腹板的受力越不均匀;当结构受力比较复杂时,梁格法计算的横梁受力更安全。The comparison of the stress on variable cross-section box girder calculated by grid frame method and single girder method shows that the greater the box girder width changes, the more non-uniform force the edge web has; when the force structure becomes more complex, the stress on the horizontal beam calculated by grid frame method is more secure.

关 键 词：梁格法 单梁法 变截面箱梁 应力 

分 类 号：U445.55[建筑科学—桥梁与隧道工程]