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Cooper River Bridge Figures 3.1 - 3.10
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Figure
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Description
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Thumbnail
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3.1
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View of "built-up" box shape. Note the stiffener which is installed to seal end of box for corrosion protection.
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3.2
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Built up H shape. At this point the three plates have been installed in the welding jig.
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3.3
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Preheating is used for welding high strength materials to avoid brittleness. Note the automated equipment.
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3.4
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Welding operation by the submerged arc weld method.
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3.5
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Preheating and welding in one operation.
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3.6
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Before being shipped out to the bridge site, the trusses are assembled in the shop to check for dimensional tolerances.
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3.7
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Painting of steel for corrosion protection occurs prior to erection.
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3.8
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More painting of the truss.
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