简支箱梁结构变形计算

简支箱梁结构变形计算
The shear lag has been studied for many years. Nevertheless, most of the studies are related to the effect of the shear lag on stressdistribution and very few have investigated the effect on deflection, although some design codes have formulas for the effect of the shearlag on deflection. In this conjunction, the present study carries out three-dimensional finite element analyses for various box girders to investigate the deflection at the mid-span. The multimesh extrapolation is employed to ensure the accuracy. The present study thus reveals the influence of the parameters that characterize the geometry of a box girder on the deflection. It is also shown that the formulas adopted in the design codes underestimate the deflection considerably. Based on the present numerical results, empirical formulas are proposed to compute the deflection magnification factors that account for the difference between the deflections due to the finite element ，简支箱梁结构变形计算的文件大小为451 KB，本站还有大量关于结构论文方面的资源提供下载哦。为下次能方便快速的找到本站，记得收藏我们的网址（http://www.jianzhu518.com）哦！