Скачать или смотреть Ballasted deck trestle

This video outlines the process of scratchbuilding a ballasted deck timber trestle. The video begins with an outline of the project, followed by an overview of the key components of a prototype ballasted deck timber trestle. We then follow the construction of the deck, bents and retaining walls.

Materials list:
All dimensions are in scale inches. Ballast retainers 8x6. Deck timbers 4x10. Stringers 8x12. Transoms 8x10 & 12x10. Corbels 8x12. Bent headstocks 12x14. Posts ~15 diameter. Diagonal bracing 3x10. Sills 4x12. Retaining walls and support posts could be made of 8x6 or 8x4. Capping timbers 4x8 or 4x10.
NB: I measured the timbers on the bridge that I could access and also referred to dimensions in the SCMRA Data sheets on ballasted decks and trestle bents. They didn’t always match, as individual bridges were built by contractors and according to loads, speeds and other criteria.