Minimum glass balconies allow five sided views in all directions and provide an experience that approximates feel suspended in the air. This platform is readily incorporated as an innovative addition that is in the spirit of the original design. 412.69m high, in 103 floor is a viewing platform which on clear days allows see four states, Illinois, Indiana, Wisconsin and Michigan. In front of the tower there is a separate entrance for tourists wishing to enter the Skydeck Pavilion, agregrado by Skidmore Owings & Merrill in 1985. 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.
Willis tower apartments series#
For these Sears Tower “tubes” midsize create a structure that appears to the eye created by a series of individual towers joined ending at different heights and provide free plants in columns ranging from 3,800 to 1,100m2, with a maximum wind drift, on top of the building, just 0.30cm. The original engineer of Bangladesh, Fazlur Rahman Khan was asked to respond to these needs by creating a new structural concept known as “screen tubes” concept became the basis for the construction of tall buildings today and earned He is considered the “father of the tubular designs” in skyscrapers. It was necessary to develop new structural concepts, not just costs, but also because the client did not want a reinforcement X on the front of his building. This process in a steel structure high-rise would be extremely expensive, in the case of the Sears Tower. To counteract this effect at lower buildings it is common to stiffen the structure with a bracing X to prevent deformation or displacement thereof in some cases by the outside or with walls of reinforcement around the vertical communication cores. One of the very important aspects to consider when a skyscraper is done is that the higher the greater height is the effect of the wind on its structure. Its construction occupies the entire block, 12.140.57m², Francklin Street bounded by Wacker Drive, Adams Street and Jackson Boulevard. The Tower is strategically located in the business district of Chicago, Illinois, United States, on 233 South Wacker Drive, in the heart of the West Coast, the first sub-market town, home of his coorporations largest and railway stations used by people living outside the city. For nearly 25 years, the Tower held the record of being the tallest building in the world until the Towers Petronas to Kuala Lumpur, Malaysia, were built in 1998. According to company officials the building would be “as high as the FAA, Federal Aviation Administration, would allow them”. With 110 plants and 443m tall structure proposal it exceeded the World Trade Center for approximately 30m. The first designs were for a boxlike structure exclusively for Sears, but architects and real estate advisers lobbied to lift a taller tower with leasable upper floors. This change was not well received by the people of Chicago that is still referring to the building as the Sears Tower. bought the building and naming rights were part of the negotiations, to be renamed Willis Tower. In 2009 the company Willis Group Holdings Ltd. Today, the tower is well maintained and remains a center of activity on the Chicago circuit. The building design, flexible and iconic plant height allowed him to become a reference point for a number of companies and firms of Chicago. From that date until 1995 the tower was the headquarters of Sears Roebuck & Co., when the trader moved to the suburbs Chicago. With immediate space demands of 279,000m², and with predictions and plans for future growth that will require even more space the architects of Skidmore knew that the project would generate one of the largest office buildings in the world.Ĭommissioned by Sears, Roebuck & Company, it was designed by the chief architect Bruce Graham and structural engineers Srinivasa and Fazlur Khan of Skidmore, Owings & Merrill, SOM.Ĭonstruction began in August 1970 and the building reached the maximum height expected on May 3, 1973. Its executives decided to join the majority of the thousands of employees in offices located in every area of Chicago in one building on the western edge of the city. In 1969 Sears, Roebuck & Company was the largest retailer in the world with approximately 350,000 employees.
0 kommentar(er)
