Bow and string girder bridge, 1796.
4 0 c m
actual image size: 21cm x 32cm

Bow and string girder bridge, 1796.

Nasmyth, Alexander

© Science Museum / Science & Society Picture Library


Pencil drawing by Alexander Nasmyth (1758-1840), showing diagrams representing his invention of bow and string bridges. A bowstring bridge features an arch, the ends of which are linked by a horizontal tie to resist outward thrust.



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