Carpentry made easy, or, The science and art of framing, on a new and improved system : with specific instructions for building balloon frames, barn frames, mill frames, warehouses, church spires, etc., comprising also a system of bridge building, with bills, estimates of cost, and valuable tables ... (1857)
Bell, William E · Philadelphia : Howard Challen · leaf 157
BRIDGE BUILDING. PLATE 30. STRAINING BEAM BRIDGES. Plate 30, Fig. 1 represents a straining beam bridge of 30 feet span, de-riigned for i. common highway. The stringers or main timbers are 35feet long, extending over each abutment to a distance of 2 J feet. Thestraining beam is equal in length to J…
Carpentry · Bridges
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
