McMaster, John Bach, 1852-1932, Making of America Project · New York, D. Van Nostrand · leaf 63
eam from sagging, bridlepieces are placed in the direction of theradii of curvature. The chief difficultywith such arrangement as this is, thatas they require beams of great lengththey can be used to advantage only insmall span arches. The centre frames for the WaterlooBridge over the Thames were… … 59 through the centre of the block. In asmall span arch, these struts would haverested on framed supports placed at theopposite abutments of the arch ; but inthe Waterloo Bridge, to avoid the inconveniences resulting from crossing thestruts, and of building beams where strutsof sufficient length…
Bridges · Tunneling
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
