misc. reinforcing rib ; strengthening rib ; reinforcedrib
加强肋之间压力弦条处的腹板。
用加强肋可以明显改善承载力，但对变形性能的影响较弱。
The reinforcing rib can enhance the bearing capacity, but have little influence on the deformation ability.
随着加强肋刚度的增加，应力强度放大因子则相应有所减小。
The relatively small reduction in stress intensity magnification factor with increasing stiffness of the stiffener.
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