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砖墙体抗剪强度的计算,在我国现行规范中有两种计算模式,即大家所熟知的剪摩公式和主拉应力计算公式。近年来国内一些高等院校和科研单位为修订规范相继进行了规模不等的试验研究,为墙体抗剪强度的合理计算进行了有价值的探讨。我们在某研究课题内也进行了单片墙体的抗剪强度试验,并收集了国内相同加荷方式的试验数据进行了统计分析,求得墙体抗剪强度的经验公式。现就我们在试验研究中考虑的问题介绍如下。
In the calculation of the shear strength of a brick wall, there are two calculation modes in the current norms in China, namely the familiar friction and shear formula and the principal tensile stress calculation formula. In recent years, some domestic institutions of higher learning and scientific research units have carried out experimental researches of varying sizes to revise the specifications and conducted valuable discussions on the reasonable calculation of wall shear strength. We also conducted the shear strength test of monolithic walls in a research project, and collected the test data of the same loading mode in China for statistical analysis to obtain the empirical formula of the shear strength of the wall. The issues we consider in the experimental study are described below.