Sears tower what is it made of

Completion Date Neighborhood Loop. Use Type Commercial Office. Style Mid-Century Modernism. See This Building on a Tour. The building formerly, and sometimes still, known as Sears Tower In , Sears Roebuck and Company was the world's largest retailer, employing approximately , people across Chicago. Privacy Policy. Search Tickets. River Cruise. All Tours. All Exhibits. All Events. Archive Past Exhibits. Specialty Private tours Concierge.

In , the Sears Tower in Chicago assumed the coveted title of world's tallest building, at 1, feet. It held this title for 22 years until , when the decorative spires atop the Petronas Towers in Malaysia surpassed the Sears Tower by 33 feet. Today, the Sears Tower still boasts the tallest occupiable floor and the tallest skyscraper roof in the world.

Educators' Guide Shop. Fast Facts: The Sears Tower contains enough concrete to build an eight-lane, five-mile-long highway, enough steel to build 50, automobiles, and enough telephone wiring to wrap around the world 1. It was the first skyscraper in the world to incorporate this type of lifts. Reverse iconic design of the structure was conceived as a direct result of the space requirements of the client. It is vertically divided into three zones of between 30 and 40 floors, each of which has a double-height lobby, as well as having three mechanical floors.

This platform is readily incorporated as an innovative addition that is in the spirit of the original design. Minimum glass balconies allow five sided views in all directions and provide an experience that approximates feel suspended in the air.

The projections are approximately 1. They are made of laminated glass panels 3. Other services include a platform for the dissemination of world-class conference center and health facility, all with exceptional technology features. The tower structure is solved with nine square modules, each rigid within itself without internal supports. The floors are suspended from the tubes, a technological innovation of the engineer Fazlur Kahn, based on the theory that a building built on a series of tubes would be lighter and stronger than a building built to a traditional steel skeleton.

At the base of the building 9 modules form a square, of The structural modules are inserted into reinforced concrete caissons reaching bedrock and are also joined by a concrete mat. The structural steel frame was pre-assembled in sections and then bolted in place. Each module 7. Skin, lightweight, black aluminum and bronze tinted glass reduces reflections and serves as insulation between the inner and outer structure in order to maintain a relatively constant temperature, which minimizes the expansion and contraction of the frame.