Abstract
The data on thickness and mechanical properties of structural steel plates for bridges distributed from domestic five steel making companies in 2001 were collected, and about 160, 000 and 80, 000 samples were acquired, respectively. The mechanical properties include yield point, tensile strength and yeld-tensile ratio. The mean value, standard deviation and histogram of samples were obtained for every steel grades. The correlation between mechanical properties and thickness was examined. The goodness-of-fit tests of thickness and yield point to typical probability functions were carried out. This paper presents the outline of the survey and the discussion on statistical characteristics of the data.
