迪拜未来将建造2400米高的Dubai City Tower
2009-03-07 23:46阅读：
Dubai City Tower (also called ‘Vertical City’) is an architect’s
proposal that began circulating in emails and at a skyscraper forum
published in August 25th, but its origins are yet to be
determined.
The professional project pitch details 400 habitable stories,
topped by a 400m energy-producing spire, making it 2.4km high. The
tower is proposed to be sited along the persian gulf where part of
the building could push into the ocean creating a marina and a
destination for cruise ships and tourism. The proposed tower is
organized into four 100 story 'neighborhoods' connected via a
vertical bullet train that quickly distributes people between Sky
Plazas that separate the different vertical neighborhoods.
By comparison, Emaar’s Burj Dubai is largely predicted to be around
800m high and 160 floors.
A “mile-high tower” in Jeddah has been planned by Kingdom Holdings,
while Nakheel is building Al Burj, which, according to project
sources, will have a final height of 1.28km, although t
he developer is keeping the details under wraps.
I would not be surprised to see this project under construction.
Only Dubai would build such crazy project. It is worth mentioning
that there are many amazing architectural projects under planning
and construction in Dubai.
Our design for the Dubai City Tower is 400 habitable stories high
topped by a 400m tall energy producing spire. Each floor to floor
height is 5m making the overall height of the building 2400m (1.5
miles).We are proposing that the Tower be sited along the Gulf Sea
where part of the building could push into the ocean creating a
marina and destination for cruise ships and tourism. The overall
mass of the tower is broken down into six independent buildings,
three of rotating clockwise and three counter-clockwise about a
central core. Sixty-five percent of the total building floor area
is located in the first 100 stories maximizing leasing potential
while easing the strain of servicing a 400 story tower. A six story
base sits at the foot of the tower housing a convention center,
retail, event space and parking. Two stories of the VIP self
Parking exists above ground and fifteen stories of robotic parking
are housed below ground. The overall tower is organized into four
100 story ”neighborhoods” connected via a vertical bullet train
that quickly distribute people between Sky Plazas that separate the
different vertical neighborhoods.
The Sky Plaza becomes a new town center at every 100 stories filled
with the character of a city offering a diversity of experiences
from shopping to leisure. Functionally, zone acts to separate
building and transportation systems into smaller more manageable
unites more typical to the design constraints of today. Here the
vertical bullet train delivers passengers/tenants every 10 minutes.
From this hub people then switch to more standard elevators to the
distributed to their offices, hotel, or homes. VIP helicopter pads
are also located at each of the plaza levels allowing for quicker
and more discreet access.
The lower levels of each sky plaza serve to separate the tower’s
building system between neighborhoods. Each 100 story block serves
s an independent unit with separate plumbing, electric and waste
system all linked through the central core. Here chilled water
created by thermal exchange and electricity created by
strategically placed photovoltaic cells and turbines located in the
spire are captured and delivered to occupants of the building. In
addition, water purification and trash composing take place within
this zone in a biosphere like gardens that becomes a vertical park
for recreation, oxygen creation, and natural relief. Every effort
has been made to make each neighborhood as self reliant as
possible. Wind energy generated by turbines located in the spire
combined with photovoltaic cells strategically laminated into the
each building’s skin offset the tower’s draw from the local power
grid. Recycling efforts at each 100 story sky Plaza and integrated
desalination plants reduce the tower’s impact on the surrounding
infrastructure ushering in a new era of smart building design
sensitive to both the building’s occupants and Tower’s local
environment.
The Dubai City Tower pushes every edge of building design. For
centuries man ha pushed construction towards the heavens. The sheer
scale of the project will focus the world’s eye towards the city of
Dubai nut it will be the tower’s design and image that will
preserve Dubai City Tower’s grandeur into the future.
All buildings must be designed for some combination of gravity(self
weight and occupancy loads),the moving earth(seismic events),and
the moving air(wind storms).For a building reaching 1.5 miles the
lateral forces from the wind exceed both the occupancy loads
imposed on the floors and the lateral loads from earthquakes. To
resist the forces and deflections imposed by the wind, shapes such
as that of the Eiffel Tower tend to be the most efficient. This
shape is both effective in resisting the forces from the wind and,
as well, in distributing, the forces imposed by the building on the
underlying earth. The Dubai City Tower maximizes the Eiffel Tower
shape while breaking up the overall mass into six separate building
and a central vertical core. Three of the building rotates
clockwise while the other three rotate counter-clockwise. The
individual buildings intersect and are tied back to the central
core every 100 stories creating a stable structural web. Internally
each individual building is supported by corner super column and
cross bracing angled to resist wind forces. On the lower floors
where the distances are too great to span between the walls of the
external structure, a secondary line of internal columns braces the
floor slabs. Structure within a building of this size is perhaps
the most important component to a successful project. Formally the
Dubai City Tower celebrates its structure ingenuity allowing the
building to soar seemingly effortlessly 1.5 miles into the sky.
The sky plaza is the town center within the vertical city. the
tower
is broken down into four 100 story
neighborhoods that are linked through the central core ad bullet
train. Suspended between the rotating outer buildings each sky
plaza serves to tie the tower together structurally, functionally,
and more importantly socially.
The plaza is the main meeting space for businessmen or
residents.
Large tree lined green spaces offer a park atmosphere in the sky
while shops and entertainment complexes provide
every thing from leisure to necessary goods and services. The lower
floors of the plaza act to service the above 100 stories. The
vertical core feeds water and electricity upward while waste is
transported downward.
The experience of the sky plaza is like that of a town square
bustling with activity and social interaction. These intermediate
zones tie the idea of a vertical city together
both
metaphorically and functionally.
Dubai City Tower is situated on the coast straddling the land and
the sea. The project’s sitting links the tower with both Dubai and
the world.
The Base of the tower rises six stories above ground and descends
fifteen stories below ground occupying a circular foot print of one
million square feet. The tower’s base houses a convention center,
retail, event space and VIP self parking. The fifteen stories below
ground house self and robotic parking to handle the load of the 6
towers that rise 1.5 miles above. The size and proportion of the
base fits within the legs of the tower relating more to the ground
level pedestrian. Rather than create a large street wall, the
edge of the base pull back at each level drawing the
eye upward into the void created by the rotating buildings of the
tower. Where the rotating building strands relate to the image of
the tower at a distance, the base and physical connection to the
sea grounds the project in the city of Dubai.
Planning Dubai City Tower creates opportunities and challenges
usually associated with the master planning of a city rather than
the programming of a tower. The sheer Scale and population of the
structure forces the design to look at both the functional
requirement of the interior as well as the tower’s impact on both
the immediate surrounding and ultimately the world. The Tower id
divided into four 100 story sections or neighborhoods linked via
circulation and services by a central vertical core. Sky Plazas
mark the ground floor of each neighborhood and act as green space
and leisure areas for the 100 stories above. Shops and markets fill
the ground floor of the six twisting building rising above. The
experience is like that of a town center bustling with activity and
social interaction.
The floor plates of the tower are filled with a mix of office
space, hotel space, and residential unites.65%of the Tower’s floor
area is located within the first 100 floors of the tower portion of
the tower eases some of the burden on the transportation and
building systems while maximizing the amount of prime leasable
office space. Vertically there is a mix of office, hotel, and
residential space within each neighborhood. The percentage of each
program changes vertically with a larger percentage of office space
located closer to the ground and a larger percentage of residential
located higher in the sky.
Vertical mixing is coordinated with the internal elevator layout
splitting the working populations from the residents and providing
high speed VIP express services to designated areas.
