| 摘要 |
A steel soldier for supporting concrete formwork comprises a pair of steel channels connected back to back and parallel with one another by tie plates Each channel has a web which. in order to increase its strength, is formed at longitudinally spaced intervals with flanged openings . These openings characteristically according to the invention have peripheral flanges which are of channel-shaped radial profile, thereby increasing the shear carrying capacity and reducing the risk of cracking of the soldier under load.
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