Located in Elbbrücken, a peninsula neighborhood within Hamburg's HafenCity, Wildspitze will add 189 residential units on its riverside site. Each apartment will feature a loggia behind a double glassfacade.
The key to engineering wood strong enough to support skyscrapers may lie in the interaction between molecules 10,000 times narrower than the width of a human hair.
A new study by researchers at the Universities of Warwick and Cambridge has solved a long-held mystery of how key polymers in plant cells bind to form strong, indigestible materials such as wood and straw. By recreating this ‘glue’ in a lab, engineers may be able to produce new wood-based materials that surpass current strength capabilities.
Nowadays the main building materials used in the construction industry are concrete, steel and timber. From the point of view of ecological sustainability, there are four important differences between these three materials: first, timber is the only material of the three that is renewable; second, timber needs only a small amount of energy to be extracted and recycled compared to steel and concrete (but the implementation of its potential is not as developed yet); third, timber does not produce waste by the end of its life since it can be reused many times in several products before decomposing or being used as fuel and; and fourth, timber traps huge amounts of carbon from the atmosphere – a tree can contain a ton of CO2  – and the carbon absorbed remains embedded as long as the wood is in use.
Considering the fact that 36 percent of total carbon emissions in Europe during the last decade came from the building industry, as well as 39 percent of total carbon emissions in the United States, the materiality of construction should be a priority for governments’ regulations in the future as measurements against global warming. The amount of CO2 in the atmosphere and the level of carbon emissions of the big economies across the globe are big issues that need to be solved with urgency in order to avoid larger, more frequent climate catastrophes in the future. The current regulation in several countries of the EU, which is incentivizing the use of renewable materials in buildings, is showing the direction the building industry in many other parts of the world should follow. And if these measures are adopted across the EU and beyond – if other countries start to follow this tendency as well – there will be significantly more wood in cities.
Building on these precedents, Hawthorne predicted that after years of baroque parametricism, in 2015 architects would use last year’s meditations on history as a practical foundation for new projects and proposals. An example of this can be found in the work of Michael Ryan Charters and Ranjit John Korah, a duo who recently shared the top-five prize for the CAF led ChiDesign Competition (part of the Chicago Architecture Biennial) for their project Unveiled. In a brief that called for “a new center for architecture, design and education,” and with lauded jurors including Stanley Tigerman, David Adjaye, Ned Cramer, Monica Ponce de Leon, and Billie Tsien, Charters and Korah proposed what could casually be summarized as a terracotta framework over a multi-story crystalline form of wooden vaults, but is actually something much more complex.
Among the changes in material technology that are constantly altering the architectural landscape, one of the most popular - and most dramatic - is the idea of the timber skyscraper. And with vocal advocates like Benton Johnson of SOM and Michael Green leading the discussion with projects like the Timber Tower Research Project, the wooden highrise is on the verge of becoming a mainstream approach.
To further the conversation in the USA, the US Department of Agriculture, working in partnership with Softwood Lumber Board (SLB) and Binational Softwood Lumber Council (BSLC), has recently launched the Tall Wood Building Prize Competition, an ideas competition with a $2 million prize. To find out more about tall wood buildings, we caught up with Oscar Faoro, Project Manager of the competition. Read on after the Break for our interview and more details on how to enter.
While interest in tall timber buildings continues to grow, there still remains one obvious concern: combustibility. So how safe are timber structures really? Arup Connect spoke with Robert Gerard, a fire engineer in Arup’s San Francisco office, to find out how high-rise wood buildings take fire safety into account.
Michael Green is calling for a drastic paradigm shift in the way we build. Forget steel, straw, concrete and shipping containers; use wood to erect urban skyscrapers. In a 240 page report - complete with diagrams, plans, renders and even typical wooden curtain wall details - Green outlines a new way of designing and constructing tall buildings using mass timber, all the while addressing common misconceptions of fire safety, structure, sustainability, cost and climate concerns.
https://www.archdaily.com/443626/the-case-for-tall-wood-buildingsJose Luis Gabriel Cruz