Abstract：Crack control is an important item in serviceability limit state design of concrete members. Some reliability analyses on crack control of concrete members have been conducted, but the method taken in these jobs is unreasonable in theory, and the results based on individual special case are not comprehensive enough. In order to comprehensively and accurately reveal the reliability level of crack control of concrete members in our country, the concrete flexural members are used to analyze the reliability under different by the dimensionless form, and the major influence factors are concluded. The result shows that it is appropriate for reliability control of third Grade-3 reinforced concrete flexural members, but conservative for reliability control of other members at present.
