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在混凝土及钢筋混凝土结构中,常被选用丁字型及槽型截面的构件。设计丁字型及槽型截面时,往往需要针算这些构件横截面的“几何特征”——重心位置、惯量矩及回转半径等,这确实是项繁重的计算工作。如用一般公式计算,不仅化费时间,并且易于滋生错误。利用现成图表,可以简化计算工作,减轻设计人员的劳动强度,提高设计质量。下面介绍一种内容较全面的计算图表,利用它可以很方便地计算出丁字型及槽型等截面的几何特征。 1.T—型截而重心位置的确定
In concrete and reinforced concrete structures, often used T-shaped and groove cross-section components. When designing the T-shaped and trough-shaped sections, it is often necessary to calculate the “geometric features” of the cross-sections of these components - the position of the center of gravity, the moment of inertia and the radius of gyration, which are indeed heavy calculations. Such as using the general formula, not only time-consuming, and prone to breach of error. With off-the-shelf charts, you can simplify your calculations, reduce the labor intensity of your designers, and improve your design quality. Here’s a more comprehensive calculation of the chart, use it can easily calculate the T-shaped and groove geometry such as cross-section. 1.T-type cut center of gravity to determine the location