Re: Looking outwards at Shanghai from inside the Jin Mao Tower
It's sad that this building is built by Japanese corp.
Will you stop making false claims regarding my posts? Your latest claim is wrong again! The Jin Mao Tower is owned by Chinese companies. You are mistakenly thinking of SWFC. Check your facts before spouting false statements to mislead forum members and visitors. The next time that this happens, I will request that Popeye ban you for repeated careless infractions.
Your constant false claims are forcing me to work twice as hard, because I have to defend my posts against your ridiculous and false statements. Within a few days, you have made three false claims:
1. China's space atomic clocks are purchased from the United States. (Wrong!)
2. China's phase-change RAM is manufactured in Taiwan, Singapore, or Italy. (Wrong!)
3. Jin Mao Tower is built by Japanese corporation. (Wrong!)
What in the world do you think you're doing?! Stop making untrue claims about my posts!
"Jin Mao Tower
...
Structure
The building is located on a 24 000 m² plot of land near the Lujiazui metro station.
It was designed by the Chicago office of Skidmore, Owings & Merrill. Its postmodern form, whose complexity rises as it ascends, draws on traditional Chinese architecture such as the tiered pagoda, gently stepping back to create a rhythmic pattern as it rises. Like the Petronas Towers in Malaysia, the building's proportions revolve around the number 8, associated with prosperity in Chinese culture. The 88 floors (93 if the spire floors are counted) are divided into 16 segments, each of which is 1/8th shorter than the 16-story base. The tower is built around an octagon-shaped concrete shear wall core surrounded by 8 exterior composite supercolumns and 8 exterior steel columns. Three sets of 8 two-story high outrigger trusses connect the columns to the core at six of the floors to provide additional support.
The foundations rest on 1,062 high-capacity steel piles driven 83.5 m deep in the ground to compensate for poor upper-strata soil conditions. At the time those were the longest steel piles ever used in a land-based building. The piles are capped by a 4 m-thick concrete raft 19.6 m underground. The basement's surrounding slurry wall is 1 m thick, 36 m high and 568 m long, and composed of 20,500 m³ of reinforced concrete.
The building employs an advanced structural engineering system which fortifies it against typhoon winds of up to 200 km/h (with the top swaying by a maximum of 75 cm) and earthquakes of up to 7 on the Richter scale. The steel shafts have shear joints that act as shock absorbers to cushion the lateral forces imposed by winds and quakes, and the swimming pool on the 57th floor is said to act as a passive damper.
The exterior curtain wall is made of glass, stainless steel, aluminum, and granite, and is criss-crossed by complex latticework cladding made of aluminum alloy pipes.
Official dedication was August 28, 1998, a date also chosen with the number 8 in mind. The building was fully operational in 1999.
Jin Mao Building is owned by the China Jin Mao Group Co. Ltd (formerly China Shanghai Foreign Trade Centre Co. Ltd). It reportedly has a daily maintenance cost of 1 million RMB (US$121,000).[3]"
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"About Jin Mao
China Jin Mao Group Co., Ltd. (Jin Mao Group) was incorporated in February 1993 with a registered capital of RMB2.635 billion. Based on a modern ownership structure with Sinochem Corporation taking a controlling stake, Jin Mao Group is operating in line with modern corporate system. The Group is mainly engaged in high-end real estate development, property management and operation, particularly the first class hotel, office building and other commercial property and landmark projects in prime locations."
