The adoption of the thin-walled box girder to the Y-shape bridge makes the restrained torsion effect, distortion effect and shear lag effect prominent.
人字形桥梁由于采用了薄壁箱梁结构，其约束扭转、畸变效应及剪力滞比较突出。
2
The wien bridge trap filter and its application in the distortion measurement are introduced, the kind of intelligent numerical control tuning wien bridge trap filter circuit is proposed.
介绍文氏电桥陷波器及其在失真度测量中的应用，提出一种智能化数控调谐的文氏电桥陷波电路。
3
At least 60 bridge sites developed fatigue cracks as a result of out-of-plane distortion in a small gap.