Statistical Study on the Strength of Structural Materials and Elements.

摘要

Strength data for structural materials and elements including concrete,reinforcing steel,structural steel,plywood elements,reinforced concrete beams,reinforced concrete columns,brick masonry elements,and concrete masonry walls were statistically analyzed. Sample statistics were computed for these data,and distribution parameters were derived for normal,lognormal,and Weibull distributions. Goodness-of-fit tests were performed on these distributions. Most data,except those for masonry elements,displayed fairly small dispersion. Dispersion in data for structural materials was generally found to be smaller than for structural elements. Lognormal and Weibull distributions displayed better overall fits to data than normal distribution,although either Weibull or lognormal distribution can be used to represent the data analyzed.