En 2050, la population mondiale aura atteint 9 milliards d'habitants et se concentrera pour plus de 75% dans les villes.
Partant de ce constat, l'agence ARUP imagine le devenir des villes dans 40 ans. Les bâtiments seront intelligents, flexibles, réversibles, biotechnologiques
et interragiront avec leur environnement pour soutenir le développement durable des villes.
Skyscrapers started to emerge in cities like Chicago and New York towards the end of 19th Century. Over a century has passed, and the skyscrapers become the norm for the big city centers throughout the world. Although the skyscraper itself is truly an achievement of modern technology and vision, the urban space that is created by the collection of these seems to be fragmented, limited, and very unkind to nature. The project takes place in this urban context, investigating the way to reunite the isolated city blocks and insert a multi-layered network of public space, green space, and nodes for the city.
The main structure of this facility consists of two components. The first is the core, which acts as a spine for the units to be plugged into, and the second is the interlocking structure which distributes the overall load of the tower to the surface, slab, and the main structure of the existing skyscraper. This unit is designed to incorporate four wind turbines which convert the kinetic energy of the wind that flows through the skyscrapers into electrical energy. Vertical-axis wind turbine among the various types of wind turbine is chosen due to its flexibility in locating the generator and the efficiency in utilizing the wind energy from both windward and leeward sides. The vertical garden unit is an open structure which provides a habitat for plants, insects, and animals, which also becomes a public park for cities where natural spaces are limited. This unit is combined and multiplied throughout the towers in order to achieve positive effects, such as reducing the urban heat and filter pollutants from the air.
The sky dock unit is the node where the network between the towers and the existing skyscrapers takes place. The bridge connects the nodes to create a city where activity, movement, and events occur in multiple layers rather than just on the ground level and inside the skyscrapers. The program unit is an enclosed space which accommodates multiple functions such as café, meeting room, observatory, museum, information center, retail, game room, restrooms, media library, etc. The program will be determined according to the location and the users of the units.
H2PIA really does look like an otherworldly utopia, but the designers make a point of having us know that this is not a fantasy. No, we can have a fully sustainable lifestyle, free of addiction to oil, coal and gas, well before the widely projected date of 2050. If all goes well, H2PIA will begin contruction in 2007.
Here’s how it works: “The renewable energy comes from solar or wind power and is used to split H2O ? ordinary water ? into H2 and O2 ? hydrogen and oxygen. The oxygen is vented into the atmosphere, which already contains about 20 percent O2. The hydrogen is used in fuel cells that can produce energy, for instance in the form of electricity and heat. In the fuel cell, the energy is created by silent electrochemical processes with no pollution. The only product left over when the hydrogen is used up, is pure water. During periods with low energy demand, we can store the hydrogene".
May 28, 2008 San Francisco’s Transbay Terminal gets the green light by Mike Chino San Franciscans rejoice! The Transbay Joint Powers Authority just approved a stunning green design for the new Transbay Transit Center to be constructed in downtown SF. Planned by Pelli Clarke Pelli Architects, the project consists of a graceful glass tower paired with an elegantly sweeping transit center topped with a five-and-a-half acre public park. Both structures will showcase a stellar set of sustainable features and will fulfill the project’s aim of centralizing the region’s transportation network while providing the SOMA neighborhood with a valuable community space.
Pelli Clarke Pelli’s design does an excellent job of balancing the center between three principles: transit, community, and sustainability.
City Park is constructed as an expansive 5.4 acre green roof that will be freely accessible to the public and will host a variety of cultural activities. It will also be an educational resource, “exhibiting several local ecologies and sustainability strategies, and presenting interpretive information for each” (...).
San Francisco is already one of the greenest cities in the US, but check out this wild new concept from IwamotoScott Architects to completely remake the city into an ecotopia by 2108 The design, which is as visually stunning as it is thought-provoking, recently won the History Channel’s City of the Future competition. It’s a full-scale urban system that combines the most innovative green technologies with San Francisco’s unique microclimate and geologic conditions, to produce a compelling vision for the future. Hydro-Net, as the project is known, will bring the lovely city-by-the-bay (which many Inhabitants call home) squarely into the 22nd Century with algae-harvesting towers, geothermal energy ‘mushrooms’, and fog catchers which distill fresh water from San Francisco’s infamous fog. Hydro-Net is perhaps the most remarkable, modern and futuristic concept ever envisioned for San Francisco - considering global warming and the hunt for alternative energy sources in the coming century. It is an extensive network of above ground and underground systems that fulfill infrastructural needs for the movement of people, water, hover-cars, and energy throughout the city.