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Props should always be erected vertically and loaded concentrically. |
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Props should always have the correct high tensile pin fitting. |
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Failure of props can result if reinforcing rods, tie rods or materials which may be inferior in quality or smaller in diameter are used instead of high tensile pin. |
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Ensure that the props inner and outer tubes are straight, free from creases and telescope freely. |
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Bent props should not be used. Ensure that both head and base plates are flat and perpendicular to the tubes. |
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Ensure the soffit formwork is adequately restrained from horizontal movement, either from containment by the permanent structure or by diagonal bracing. |
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To improve load bearing capacity, lace props with tubes and fittings. |
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Wherever suitable, tie the lacing into the permanent structure. |
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Props should never be placed on top of one another to support high slabs. |
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Never throw the props down to the ground from any height. |
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Always handle them carefully. |
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