CTBUH Journal
Total Page：16
File Type：pdf, Size：1020Kb
About the Council The Council on Tall Buildings and Urban Habitat, based at the Illinois Institute of Technology in CTBUH Journal Chicago and with a China offi ce at Tongji International Journal on Tall Buildings and Urban Habitat University in Shanghai, is an international not-for-profi t organization supported by architecture, engineering, planning, development, and construction professionals. Founded in 1969, the Council’s mission is to disseminate multi- Tall buildings: design, construction, and operation | 2014 Issue III disciplinary information on tall buildings and sustainable urban environments, to maximize the international interaction of professionals involved in creating the built environment, and to make Special Issue: CTBUH 2014 Shanghai Conference the latest knowledge available to professionals in a useful form. Case Study: China Zun, Beijing The CTBUH disseminates its fi ndings, and facilitates business exchange, through: the Closing the Gap Between Fantasy and Reality publication of books, monographs, proceedings, and reports; the organization of world congresses, Hybrid Timber Construction for Sustainable Tall Buildings international, regional, and specialty conferences and workshops; the maintaining of an extensive Building Services as a Force for Sustainable Vertical Urbanism website and tall building databases of built, under construction, and proposed buildings; the Learning From 50 Years of Hong Kong Skybridges distribution of a monthly international tall building e-newsletter; the maintaining of an Tall Buildings in Numbers: Vertical Greenery international resource center; the bestowing of annual awards for design and construction excellence and individual lifetime achievement; the management of special task forces/working groups; the hosting of technical forums; and the publication of the CTBUH Journal, a professional journal containing refereed papers written by researchers, scholars, and practicing professionals. The Council is the arbiter of the criteria upon which tall building height is measured, and thus the title of “The World’s Tallest Building” determined. CTBUH is the world’s leading body dedicated to the fi eld of tall buildings and urban habitat and the recognized international source for information in these fi elds. Council on Tall Buildings and Urban Habitat S.R. Crown Hall Illinois Institute of Technology 3360 South State Street Chicago, IL 60616 Phone: +1 (312) 567 3487 Fax: +1 (312) 567 3820 Email: [email protected] http://www.ctbuh.org Special Issue Sponsored by: ISSN: 1946 - 1186 Inside News and Events Features 34 Architecture/Design Closing the Gap between Fantasy and Reality: Pushing Current Technologies into the Future The tall building is a discrete architectural type. The causal aspects of its evolution can assist in determining which aspects will be of the most benefit 02 This Issue 52 Tall Buildings in Numbers in pushing the idea forward. If tower-type buildings are symbols of the ideals and aspirations of the civilizations of any period in history, then what should our current response be based upon our technical achievements? Antony Wood, Green Walls in High-rise Terri Meyer Boake The age of the iconic skyscraper has come to There is such a significant gap between the be dominated by a combination of the physical realities – and sheer mass – of Author preference for the stylistically unique in skyscraper design and the fantastical images Terri Meyer Boake, Professor conjunction with the quest to build tall. The of skyscraper “dreams” that we see in visionary Figure 2. The Dragonfly urban vertical farm concept in New York. Figure 3. The Asian Cairns farmscraper concept in Shenzhen. School of Architecture © Vince Callebaut Architects. Source: http://inhabitat.com © Vince Callebaut Architects. Source: http://hyperallergic.com University of Waterloo uniformity and rectilinear nature of proposals and competition entries. We Cambridge, Ontario, Canada International Style architecture that dominated seldom see the same abandon in the design progress in megacolumns, outriggers, diagrids, compelling and often controversial area of debate, particularly with reference to project Executive Director Buildings t: +1 416 636 0031 f: +1 416 636 0323 tall building design through the better part of of museum types, for instance. Although composite construction, concrete pumping design. As the planet urbanizes, the tall proposals as they are introduced in the media. e: [email protected] the 20th century has given way to unrestrained conceptual explorations for smaller building technologies, high-performance envelopes, building is being claimed as the solution. https://uwaterloo.ca/ expression that is reliant on pushing the limits types might push the limits on form and and vertical transportation. But it has not However, the questions “how tall?” and “how Many of these blur the lines between digital of technology, including the structural materials, often as a direct result of digitally necessarily kept up with the fantasy visions of dense?” have not been properly addressed. design, technical aspirations and present Terri Meyer Boake Terri Meyer Boake has been a full professor in the capabilities of materials and systems, as well as driven liberation, they are usually grounded in towers that we see in renderings and realities. A great number of the most School of Architecture at the University of Waterloo the methods used to calculate and fabricate some sort of material concern. competition entries, many of which ignore speculative skyscrapers have a “green” agenda. since 1986, teaching in the areas of building construction, architecturally exposed structural those systems. This encompasses many present-day material and construction realities The Design Potential of Controversy Sustainable themes include the incorporation steel, environmental design and film. She researches evolving areas of digital design. The Evolo Skyscraper Ideas Competition has – and gravity. Many of these proposals may of wind turbines and vertical farms that push steel construction for the Canadian Institute of Steel Construction, working with them to publish the CISC been running since 2006 to inspire an interest include genuinely inspirational ideas, but they Recent stylistic and structural changes in the limits well beyond what has been 07 Debating Tall: 54 Talking Tall: James Robinson Guide for Specifying Architecturally Exposed Structural Tall buildings presents one of the most in the design of tall buildings. The winning presently belie construction. However, it is the tower typology have potentially made the tall accomplished to date in projects such as the Steel. She has published Understanding Steel Design: An Architectural Design Manual (Birkhäuser 2012), challenging design problems that we face. entries have become increasingly fantastic, as nature of “ideas competitions” to bring forward building a more engaging building type as Pearl River Tower in Guangzhou by SOM or the Diagrid Structures: Systems, Connections, Details What is being constructed today will impact illustrated in Figure 1. This is not to suggest compelling visions of the future of architecture well as perhaps a more contentious one. This Wuhan Greenland Center by Adrian Smith + (Birkhäuser 2014) and is presently writing Architec- turally Exposed Structural Steel, due out in January our environment for many decades to come. that “ideas competitions” are invalid (see Figures 2 and 3). What should be the focus provides an interesting opportunity for Gordon Gill Architecture (see Figures 4 and 5). 2015. She has lectured worldwide on applications in Skyscrapers are not readily demolished. They approaches for eliciting innovation; rather, the of future skyscraper developments? architecturally exposed structural steel. Is There a Height Threshold Learning From 50 Years of are massive buildings with extremely lack of basic material and structural concerns She travels widely to present at international confer- ences and document buildings. Her photographs significant structural systems that must create makes such competition results more suited The winning entries from the 2014 Evolo form the basis for her lectures, teaching and research livable spaces for thousands of people (inside to a digital industry such as film, and limits Competition clearly acknowledge the need for – many appearing in the CTBUH Skyscraper Database. and outside) as they engage the city, and their applicability to the practice of towers that integrate high-speed vertical She is a member of the CTBUH Skyscraper Center which need to remain viable for a significant architectural design. transport systems, capture carbon, improve the for Optimum Sustainability? Hong Kong Skybridges Editorial Board. duration. air quality of cities, incorporate new materials, The technology of building tall has advanced use 3D-printing technologies, and generally significantly in the past 15 years – with major push a sustainable agenda. These are “fantasies” deserving of realistic exploration. The situation may require that we step back and reconsider the tall building typology going Tall buildings presents one of the most forward, to better direct our energies towards “challenging design problems that we face. understanding how we can effectively build 08 Global News 58 Ask a CTBUH Expert: upon current technologies to create a more What is being constructed today will socially and environmentally responsive framework. There is a need to reconcile current impact our environment for many decades