Shear force diagrams are drawn in the manner indicated, with negative shears below the baseline.
剪力图按指明的方式来画，负剪力画在基线以下。
The negative shear lag effect of the cantilever and continuous girders is studied and the parameters which influence the shear lag effect is analysed.
就悬臂梁的负剪力滞现象进行理论分析和推导，并结合实际算例来对悬臂梁负剪力滞现象进行参数分析。
Experimental data show that while water content and previous shear ratio are fixed, failure of negative sheared interfaces still satisfy the Mohr-Coulomb criterion.
试验结果表明，在正向剪切比和含水率一定时，接触面反向剪切破坏仍遵循摩尔-库仑破坏准则。
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