Medieval architecture, its origins and development, with lists of monuments and bibliographies (1909)
Porter, Arthur Kingsley, 1883-1933 · New York, The Baker and Taylor Company · leaf 51
III. 7. — Diagram of the Barrel Vault wall above the flat arch, — when the flat arch becomes a meresham and economic waste, accomplishing no work at all —or else iron tie-rods must be inserted in the stones, formingfalse construction of the most flagrant type.* Occasionallythe flat arch was used,…
Architecture, Medieval
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