Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 95
Fig 53 depth of terra cotta arch required. The spans are kept withincertain limits, and for such limits the proper depth of arch hasbeen well determined. The following spans and depths of arches represent theaccepted practice: 73 66 STEEL CONSTRUCTION When it is desired to use terra cotta…
Architecture · Building
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