Architectural engineering. With special reference to high building construction, including many examples of Chicago office buildings (1895)
Freitag, Joseph Kendall · New York, J. Wiley & sons; [etc., etc.] · leaf 90
atisfactory ;indeed, plaster of Paris or gypsum has been used in Europefor many years as a fire-proof material. The greatest objections to these arches lie in the dis-coloration of the plastered ceiling, due to the rusting ofthe wires, and the excessive amount of water retained for along time by… … Fig. 38. on twisted iron rods i\ X i\ for support (see Fig. 38).The concrete arches are f 4 centre to centre of columnswithout the aid of any metal-work. The columns areplaced 25/o// centres longitudinally, with 4 twisted rods act-ing as supports between. The concrete slabs are joined by-a lap…
Building, Iron and steel
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