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 171
older portion of the Monadnock Building, as in Fig. 97. The portal system (3) was used in the Old ColonyBuilding, Chicago, completed in 1894. The portals areplaced at two planes in the building—a cross-section of oneset being shown in Fig. 98. Wind pressure was figured at27 lbs. per square foot on… … Fig. 99.—Detail of Portal, Old Colony Building. all splices and connections. A detail of one portal is shownin Fig. 99. This arrangement of wind bracing proved verysatisfactory in all respects, and, according to the designer,was cheaper in the end than the sway-rods provided in the WIND BRACING.…
Building, Iron and steel
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