Showing posts with label Olympics. Show all posts
Showing posts with label Olympics. Show all posts

Wednesday, June 13, 2012

RENZO PIANO: THE SHARD TOWER AND LONDON'S REGENERATION


ESPAÑOL

Urban regeneration goes beyond just real estate development, although the latter may be an important catalyst to the former. As David Littlefield writes, urban regeneration involves an effort to revitalize the social and economic choices of a locality. In this sense, the process of regeneration of the London Bridge area, is one of the most important urban developments in London and one of the most representative icons of this city ahead of the Olympic Games 2012.


This process is presided by the Shard Tower (designed in 2000, built 2009-2012), a monumental work by the Italian architect Renzo Piano, standing as the tallest tower in Europe with its  1000 feet or 306 m. A building as powerful as iconic, it necessarily brings enthusiasts and detractors, both for the quality of its architectural design and urban relevance, as for the impact it has had on the London skyline.

The Shard and Foster's City Hall to the left.

LOCATION

Located a few meters from the River Thames and close to the Tower Bridge, the Shard  is located on an irregular plot next to the London Bridge station, one of the most important nodes of the city, which includes a train station, two subway lines (or tube, as it is called in London) and bus interchange.

Before the Shard Tower in 2002

The skyscraper replaced the Southwark Towers, a building by TP Bennett Architects (1975).

CONCEPT

The Shard is Piano´s version of "a city in the sky", a concept cherished by humans since time immemorial (a daring "punished" in the biblical Babel) and has had performances as the Umeda Sky Building by Hiroshi Hara in Osaka.


Piano's proposal resembles an irregular obelisk of faceted sides that slope inward. These faces, however, do not to meet at the apex, giving the effect that the building, as seen from afar, would seem to dissolve in the sky.


It is said that the form was inspired on the towers of the churches that populate London.



For some, the Shard tower also symbolizes London's power to rise  above the current global economic crisis. Paradoxically, 80% of this massive urban renewal program are owned by Qatari investors.


PROGRAM

The building has been designed as a vertical town, accommodating 8000 occupants in an area of ​​54.488 m2. The program includes mixed uses (just like the Burj Khalifa in Dubai), such as offices, shops, a 5 star hotel, luxury apartments and a panoramic gallery on the top of the 72nd floor.


"The height is extreme but the footprint is relatively small. The building consumes 1/5 of the energy consumed by a village of 8000 inhabitants." says Piano, emphasizing the environmental concerns and the need for densification of cities.

The building "breathe" through naturally ventilated "winter gardens", a concept that Piano has previously used in his Aurora Place building in Australia .


As important as the building is the design of public spaces and transport services. The proposal includes an expansion of the bus station, train and subway stations and connection to water taxis on the banks of the Thames. Also included are public areas for recreation, art installations, cafés and socialization areas.


CONTROVERSY

In an area as important as London Bridge, in a cosmopolitan city like London, it was necessary to inject urban life, social exchange, economic value and at the same time, densify and make an efficient use of the precious space .

The construction of this megastructure had found, however, criticism and controversy, mainly led by the organization English Heritage, who claim that this volume distorts historic London's skyline, particularly the iconic Cathedral of St. Paul (although the building height was reduced from  its original 400 m to 300 meters).


This is a process that had begun several years ago with the opening of the " Gherkin ", designed by Foster and Partners," whose huge, gaudy buildings overshadowed a humble, almost sweet Tower of London, a World Heritage Site " in words of UNESCO.

The Shard Tower view from the Tower of London.

Catherine Bennett, in his article " Is anyone going to put a stop to the vandalism of the profile of London? "published in The Observer, criticized the deformation of the skyline:
Does anyone, with the possible exception of bankers, want a symbol of how London is "powering its way out of the global recession"? ... But if, as Londoners, we'd said oh yes please, would we have chosen this import from the Dubai school of economic symbolism, erected in a place where it overturned, at a stroke of Prescott's pen, planning principles that protected the inner London skyline from speculators for half a century?


Renzo Piano responds to criticism:

"I have always loved St Paul's, it is an icon of mine because it is a great building. It's fantastic. But when St Paul's was built, it was modern, just like the Shard is modern now. It wasn't a classic at the time. It became a classic."


Sir Richard Rogers, a consultant to the Greater London Authority and also a friend of Piano and also co-author of the controversial (and today applauded) Pompidou Center in Paris said:

"The building is a masterpiece of architecture and design ... the contrast between the dome of St Paul’s and the transparent glass spire of the Shard reinforces the cathedral’s silhouette."


It is undeniable that, even without its completion, the building's visual impact on the environment is enormous, particularly due to the open view from the Thames.

Photo courtesy of vulture labs

And although there is no denying the quality of design of the Italian master, perhaps the most serious problem is to open a precedent for many new interventions, which seek to emulate or surpass the height of the Shard, but not necessarily quality.



High rise buildings under construction, approved and planned in London

SEE ALSO
SKYSCARPERS


Monday, October 17, 2011

KENZO TANGE: YOYOGI NATIONAL GYMNASIUM, TOKYO

ESPAÑOL

The Yoyogi National Gymnasium in Tokyo, built for the Olympics in 1964, is the most famous work by the Japanese architect Kenzo Tange, which catapulted him to international fame and to the Pritzker Prize. Its aerodynamic, monumental and suggestive design became an icon of the Japanese capital and a benchmark in the Metabolist Movement, distancing himself from the International Style. When it was completed, the National Gymnasium had the world's largest suspended roof and after almost 50 years its completion it still looks extraordinarily well preserved.


The complex consists of 2 buildings, and both stand out by their quality of their structures as well as the innovation of their design, by using high technology in a country constantly shaken by strong winds and earthquakes.


OVERVIEW

Japan was devastated after its defeat in World War II in 1945 and during the American occupation led by MacArthur. However, the world was surprised when less than 20 years after the atomic bombs were dropped, Japan organized the Tokyo Olympics in 1964, and it would be even more impressed with the extraordinary quality of its sports infrastructure, leaded by this Olympic Park designed by Kenzo Tange .


Tange (1913-2005) was a legendary figure in modern Japanese architecture. Influenced by Le Corbusier , was a master in the use of reinforced concrete, the material it has developed numerous works. His urban projects such as rebuilding plan Hiroshima or Tokyo Expansion plan earned him international recognition, garnering numerous awards including the prestigious Pritzker.

LOCATION


Located in the Shibuya district, the complex is officially called Yoyogi National Gymnasium named as the park where it stands. Opposite, there is a large green area which houses the important Shinto shrine dedicated to Emperor Meiji.



Also close by is Harajuku station, where some Japanese are often dressed in bizarre customs.


The two gyms are placed in a landscaped platform. In fact, despite their monumental size, they give the impression that the roofs are born the park itself, emphasizing its relationship with the surrounding environment.


CONCEPT

The elegant roofs of the two gyms use a contemporary language and a similar structural logic: they are suspended by two large steel cables. Both axes are arranged in an east-west, which is also the predominant direction of plot.

General layout of the Yoyogi Park

THE MAIN GYM


With a capacity for 10,000 people, the main gym can accommodates swimming events, but also basketball and hockey games.

The space is organized symmetrically, distributing the stands to the north and south, emphasizing the east-west direction in both the roof and the location of the entrances.

Main Gym floor plan

Structure

The structural concept is based on a main spine that consists of two steel cables 13 " in diameter, anchored to two large slabs of concrete on either end of the building and to two structural towers. Cables describe a parabolic curve (technically, it is called catenary ) from which smaller wires are placed perpendicularly, to form a tent-like roof.

Details of the structural system of Gym Staff. Model on the ARCHI-NEERING exhibition (which I will discuss in a later post), during the World Congress of Architecture in Tokyo 2011



The roof over stands, having a different curvature from that of the cables, generates an elegant and graceful roofing structure, whose surface, concave and convex at the same time, is always different from any viewed angle (a mix of paroble and hyperbole, again technically, is called a hyperbolic paraboloid . Tange had already used this way in the monument of the saddle in the Hiroshima Peace Park ).
Structural scheme of the roof
Details of anchor of the two steel cables.

Facade

Kenzo Tange takes advantage of the gap between the two curves to propose an imposing triangular access, which, despite having a monumental scale, seem to be born of the earth, giving the building a feeling of lightness. Both accesses are preceded by concourses or squares, which are distinguished from the rest of the park by a small atrium.


Another detail that provides visual lightness to the structure is the graceful cantilevers containing the stands that give the impression that the building would levitate. These stands also accommodate the rhythmically arranged openings.

Detail of the side wing of the gym. In the background is the building of Roppongi Hills .

The rhythm is also applied at the entrances, where the V-shaped metal structure of different size is displayed in a dynamic way.


It is also important to note that the roof, although it used state-of-the-art technology at the time, still evokes elements of traditional Japanese architecture, particularly the roofs of Shinto shrines. In fact, the first building of its 29 years Tange was a memorial representing the Ise Shrine.


Detail of one columns of the gym. Interestingly, I visited the main shrine of Ise for a week. The reference was inevitable.

Tange used exposed concrete, metal and steel, favorite materials the Brutalism of the mid-60's, and exploited the versatility of these to achieve dynamic and sculptural forms.


Inside

Tange used the space between the two catenary arched to allocate a large skylight, which adds a dramatic effect within the space. Tange used a similar system in his St. Mary Cathedral in Tokyo.


Details


THE MINOR GYM


It has a capacity for 5,300 spectators and is used for minor sports. The space is organized around two non-concentric circles, and therefore some stands are larger than the opposite. Unlike the main gym, this has only one structural column and one single entry.


In his interesting "Atlas of Architecture, Volume 1", Werner Muller and Gunther Vogel made ​​the following analysis:


In plan, the inner circle of the ring (1) is offset with respect to the circle formed by the stands of spectators (2), which results in the shell form that they acquire and the dynamic curve upward of the stands in front of the entrance. The outer ring distribution is, in turn, slightly shifted in the opposite direction, widening gradually towards the entrance (as the opening of a snail shell) to the extension of the ring (8,9,10) to buttress block. The difference in the layout of the circles in plant responds to the movements of the public, both in the crowds at the entrance and exit as in their distribution in the stands.
Facade

A small square precedes the gym, landscaped with a small Japanese-style pond. As in the other gym, the roof also seems to be rising from the park.


For the smaller gym, the Japanese master used the same principle, only instead of using two concrete slabs, using a single, like a gigantic mast.


Two views of the mast.


The roof is conceived by way of an unwinding spiral, culminating in a sharp bow. Müller and Vogel comment on the roofing:


The roof is constructed as a laminar structure, following a principle similar to a mesh of wires with hard edges. The rim is formed by a ring along the outer edge of the enclosure, and is divided into two curved beams, an upper (8) and lower (9) joined by single brackets (7). Instead of steel cables as originally thought, the structure is formed by a set of hanging beams (6) lying between the outer ring and a steel tube (5) that spirals upwards. This is laid, -instead of the main cable-, forming the ridge of the roof hanging from the large block that acts as a buttress (4) at the outer end of the main entrance, forming a curve, initially smooth but later rises perpendicular to the upper pylon (3), linked to buttress by an underground concrete wall. Among the hanging beams are smaller beams arranged diagonally at regular intervals, on which rests the outside part of the roofing, consisting of steel plates 4-5 mm thick. The static behavior of this type of construction requires a blade.

Details of the structural system of the Lower Gym. Model on the ARCHI-NEERING exhibition (which I will discuss in a later post), during the World Congress of Architecture in Tokyo 2011

Details.


SEE ALSO:
- OTHER WORKS BY KENZO TANGE.
- SPORTS FACILITIES
Yoyogi Gymnasium was the first building that I visited during my first stay in Tokyo. It was a very rainy day, maybe it was a typhoon, but I did not care. I was overwhelmed by the monumentality of this design and its careful execution and state of preservation. I was very impressed because I had only seen it before in a few small photos, hidden somewhere in the history books of modern architecture.
Today I went back to Yoyogi 8 years later (happily on a sunny day) and still impresses me. Having seen more of Japan than the first time, I could understand it a little better, so I wanted to share my impressions with you in this post.