American Building Art: The Nineteenth Century

abutments American anchor spans arch ribs arched trusses architect architectural balloon frame Baltimore bolted Boston bottom chord bracing brick builders built cables cantilever cantilever bridge carried cast iron cast iron columns Central Chicago Company compression deck trusses developed diagonals dome Eads Eads Bridge elevations engineer feet 6 inches feet long floor foot gable girders Grand Central Terminal height Home Insurance Building horizontal interior invention iron bridge later length load long-span Louis material maximum mill Niagara nineteenth century Ohio River original over-all panels Pennsylvania Railroad Philadelphia piers posts rail Railway reinforced concrete River bridge rods Roebling roof side spandrel Starrucca Viaduct station steel stone masonry Street stresses structure supported suspension bridge techniques terminal timber tion top chord towers tracks traffic trainshed transverse truss bridge truss patented United vault vertical walls Warren truss Whipple truss wood wooden wrought iron