After installation of the floors the I-beam on centreline must be constructed. The I-beam is a very important structural part of the hull which spreads the ballast keel loads fore and aft in the hull. Together with the backbone, spacers between the floors and the keelson attached on top, the I-beam is formed. Spacers were first fitted between the floors. This was followed by the keelson. The latter was pre-scarfed on the workshop floor and later inserted through the slots in the bulkheads.
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I-beam construction |
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Spacers inserted |
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Keelson installed |
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