Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 94
F,<} 55 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 06 . STEEL CONSTRUCTIO^r When it is desired to use terra cotta…
Architecture · Building · Carpentry
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