The sunken guide-slot forms rib reinforcement at the backside of the base-plate and the base-plate is hard to deform.
下凹的导槽在底板背面形成加强筋，底板 不易变形；
This article describes three types of rib beam calculation of internal force, and compare the three calculation methods to guide the practical work.
本文介绍了三种肋梁内力计算的方法，对三种计算方法作了比较，以供实际工程中选用。
This article describes three types of rib beam calculation of internal force, and compare the three calculation methods to guide the practical work.
本文介绍了三种肋梁内力计算的方法，对三种计算方法作了比较，以供实际工程中选用。
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