ALCOA CORPORATE CENTER, Pittsburgh PA 1994 - 1998.




Western-half of office block's building frame. View from the Ninth Street Bridge. (February 1997)




Three-quarters of office block's building frame. View from the Seventh Street Bridge. (February 1997)




South-west corner view from the Seventh Street Bridge showing tie columns at wall perimeters and floor-to-floor height of 15 ft. 10 in./ 4.8 m. Note the absence of all corner columns. (February 1997)











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