本文根据国内外大量砌体强度数据,提出了由砖和砂浆的变异系数计算砌体强度变异系数的经验公式。上述变异性的计算至今尚极少论及。为了验证其可靠性,进行了约400个砌体的试验。结果表明,计算值与试验结果比较符合。而且,较之同类公式具有概念清楚,计算简单和精度较高的优点,为实际工作提供了更合理而简化的计算方法,从而解决了需要大量砌体试验的问题,并为砖石工程安全度分析提供了科学依据。 Based on a large number of masonry strength data at home and abroad, this paper proposes an empirical formula for calculating the variation coefficient of masonry strength from the coefficient of variation of bricks and mortar. The calculation of the above variability is still rarely discussed. In order to verify its reliability, about 400 masonry tests were conducted. The results show that the calculated values ​​are in good agreement with the test results. Moreover, compared with similar formulas, it has the advantages of clear concept, simple calculation and high precision, and provides a more reasonable and simplified calculation method for practical work, thereby solving the problem that a large amount of masonry tests are required, and also providing the safety of masonry projects. Analysis provides a scientific basis.