The results show that: (1) The mean drag and lift coefficients of box shape bridge deck section have considerable Reynolds number effect;(2) the ratio of width to height(B/H) affects on Reynold.

• 在较大的雷诺数范围内测量了不同宽高比箱形桥梁断面的三分力系数,研究了三分力系数雷诺数效应以及宽高比对断面三分力系数雷诺数效应的影响。