This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
The exterior and interior of a factory building, designed and constructed by Wm. Steele & Sons Company for the Erben-Harding Company, Philadelphia, are shown in Figs. 197 and 198. This building is 100 feet by 153 feet, and was constructed structurally of reinforced concrete, except that structural steel was used in the columns. The floors and columns were designed to support safely a live load of 120 pounds per square foot.
Fig. 197. Exterior of Factory Building for the Erben-Harding Company, Philadelphia, Pa.
Fig. 198. Interior of Factory Building for the Erben-Harding Company, Philadelphia, Pa.
The floor-panels were about 12 feet by 25 feet, the girders having a span of about 12 feet, and the beams a span of 25 feet. One intermediate beam was placed in each panel, as shown in the interior view. The girders were 12 inches wide and 20 inches deep below the slab, and were reinforced with 4 bars l 1/16- inches in diameter. The beams were 12 by 18-inch, and were reinforced with 4 bars 1 1/4 inches in diameter. The floor-slab was 4 inches thick, and was reinforced with 3-inch mesh, No. 10 gauge, expanded metal.
The columns were all 18 by 18-inch; but the structural steel (4 angles arranged as shown in Fig. 199) in the columns was designed to support the entire load on the columns. Four 3/4-inch bars were placed in the columns and wrapped with expanded metal. The exterior columns were exposed to view on both the exterior and the interior of the building. The entire width between the wall columns was filled by triple windows. The wall beams were constructed flush with the exterior surface of the wall columns, as shown in Fig. 197. The space between the bottom of the windows and the wall beams was filled with white brick. The two fire towers located at the corners of the building were also constructed of white brick.
The floor finish of this building is somewhat unusual. Sills 2 by 4 inches were laid on the structural floor-slab of concrete, and the space between these sills was filled with cinder concrete. On these sills was laid a covering of 2-inch tongued-and-grooved plank; and on these planks was laid a floor of 7/8-inch maple, the latter being laid perpendicular to the 2-inch plank.
Fig. 199. Column for Erben-Haramg Building, Philadelphia, Pa.
Fig. 200. Plan of Shop Building. Swarthmore College, Swarthmore, Pa.
Fig. 201. Detail of Girder for Shop Building of Swarthmore (Pa.) College.