Triangular 4

Source: MIT

Kresge Auditorium, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA, 1955 designed by Eero Saarinen

The building’s striking dome-shaped roof is actually a segment of a sphere laid on its side so that it touches the ground at three points. Rising to a height of 50 feet, with its side elevations clad in glass, the sphere segment encloses a column-free concert auditorium.  -- Architectural Record

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Source: seidler.net.au

Plan, Source: seidler.net.au

Riverside Centre, Brisbane, Queensland, Australia, 1986 designed by Harry Seidler & Associates

The site offers fine views up and down the river. This asset was maximised in the design of the 40 storey office tower by means of a triangular plan which faces more than two thirds of offices to the water.  -- architect's web site

Source: Foster + Partners

Torre de Collserola, Barcelona, Spain, 1992 designed by Foster + Partners

The curved triangular shape of the platforms was designed to maximise space while integrating structural stiffness with aerodynamic considerations.  -- architect's web site

Source: wikipedia.org

Plan, Source: Foster + Partners

Commerzbank Tower, Frankfurt am Main, Hesse, Germany, 1997 designed by Foster + Partners

The Commerzbank Tower is shaped as a 60 metres (197 ft) wide rounded equilateral triangle with a central, triangular atrium. At nine different levels, the atrium opens up to one of the three sides, forming large sky gardens. These open areas allow more natural light in the building, reducing the need for artificial lighting. At the same time it ensures offices in the building's two other sides have a view of either the city or the garden.

In order to eliminate the need of supporting columns in the sky gardens, the building was constructed in steel instead of the conventional (and cheaper) concrete. It was the first skyscraper in Germany where steel was used as the main construction material. -- Wikipedia

Source: wikipedia.org

Queens Public Library, Flushing Regional Branch, Queens, New York, USA, 1998 designed by Ennead Architects

The design of the building responds directly to its urban environment: addressing the hierarchical difference between Main Street and Kissena Boulevard, while simultaneously expressing the culmination of downtown Flushing at its southern portal. -- architect's web site

Source: kpf.com

CNOOC Headquarters, Beijing, China designed by KPF

The rotated triangular tower maximizes the use of the site and creates an entry courtyard along the quieter side which is entered through a symbolic gateway recalling traditional Chinese courtyards. -- architect's web site

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Source: Rafael Gamo archdaily.com

Plan, Source: archdaily.com

Call Center Querétaro, Queretaro, Mexico designed by Studio Lamela Architects

The approach adopted by the proposal is a clear separation between two elements: one is earth-bound and uses heavy materials, taking into account traditional Mexican architecture, and the other is raised and uses light materials which represent the present and the technological future. -- ArchDaily

Source: wikipedia.org

National Association of Realtors Building, Washington, D.C., USA, 2004 designed by Gund Partnership

The Washington, D.C. headquarters of the National Association of Realtors was the first building within the District of Columbia to receive certification from the U.S. Green Buildings Council’s LEED rating program.  -- PCA

Source: buildingbutler.com

Plan, Source: alvy @ Flickr

Torre Sacyr Vallehermoso, Madrid, Spain, 2008 designed by Carlos Rubio Carvajal and Enrique Álvarez-Sala Walter

Originally expected to have 215 meters the height was then extended to 235 meters.

Features some of the highest (above ground) hotel rooms in Europe. -- Emporis

More from architect's web site

Source: Pelli Clarke Pelli Architects

Torre Libertad, Mexico City, Mexico, 2009 designed by Pelli Clarke Pelli Architects

In response to this historically significant site, the design of the tower is simple and sculptural. Its form is derived from an equilateral triangle with curved sides, pointing towards the Diana Fountain. -- architect's web site

Source: wikipedia.org

Plan, Source: wilkinsoneyre.com

Guangzhou International Finance Center, Guangzhou, China, 2010 designed by Wilkinson Eyre

Conceived as slender curved forms, the towers will frame Guangzhou Zhujiang New Town’s main axis, linking the commercial district in the north with the Pearl River to the south. Their triangular plan responds to the need for efficient internal space layouts and excellent environmental performance. -- architect's web site

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Source: BFLS archdaily.com

Plan, Source: archdaily.com

Strata SE1, London, UK, 2010 designed by BFLS

Strata SE1 is a 148 metre high 43‐storey residential tower that forms a dynamic new addition to the London skyline. The first building in the world with integral wind turbines, it also sets a new benchmark in terms of environmental strategy. -- ArchDaily

London’s Strata Tower was hailed as being the first building to incorporate traditional wind-turbines structually. Upon completion it was hoped that these would provide up to 8% of the buildings energy costs. However, the residents who had shelled out top-dollar for the penthouse apartments beneath the turbines weren’t too happy with the ruckus above and now the turbines spend most of their time lying idle. -- ArchDaily

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Source: Pelli Clarke Pelli Architects

Torre Iberdrola, Bilbao, Spain, 2011 designed by Pelli Clarke Pelli Architects

The form of the tower is a softly rounded triangle in plan that tapers gently upwards towards the sky, suggesting a crystal obelisk. -- architect's web site

Source: Hufton + Crow archdaily.com

Site Plan, Source: archdaily.com

Wellington House, Petty France, London, UK, 2012 designed by John McAslan + Partners

Design development has addressed the fact that the triangular site sits within a conservation area, and careful consideration has been given to the building’s Indian Sandstone façade. Surrounded by buildings of various scales, typologies and historic architectural styles, John McAslan + Partners collaborated with the artist Georgia Russell to develop an incised treatment – inspired by the flight pattern of birds and of wind flow – that brings a distinctive new character to the building and creates a visual focal-point for the immediate area. -- ArchDaily

Source: Sunlay archdaily.com

Plan, Source: archdaily.com

Hangzhou Xixi National Wetland, Hangzhou, Zhejiang, China, 2012 designed by Sunlay

....the project is designed as ‘green buildings’ and provides different functional areas including visitor center, ecological exhibition, ecological education, office, meeting and dinning. -- ArchDaily

Source: Thomas Eicken archdaily.com

Plan, Source: archdaily.com

Kulturbau, Zentralplatz, Koblenz, Germany, 2013 designed by Benthem Crouwel Architects

The cultural building stands solitary in the new central square and is a landmark due to this solitary character, its facade design and the conscious elevation in the city. The building has splendid accessibility for visitors; the central lobby has entrances from all sides and is therefore a natural part of the urban fabric. -- ArchDaily

Source: Patrik Lindell archdaily.com

Plan, Source: archdaily.com

Aula Medica, Solnavägen 7, Karolinska Institutet, 171 65 Solna, Sweden, 2013 designed by Wingårdhs

If the relation to the city is guided by a wish to adapt to an urban pattern, the plan of the building is generated by the auditorium. For a large aula of today, where lectures with images and performances on the stage demand good sightlines and acoustics to each and every seat,the V-shaped seating have proved to be the most efficient. It has not always been like that. -- ArchDaily

Source: Sergio Grazia archdaily.com

Plan, Source: archdaily.com

Paris- Quai de l’Oise, 19th arrondissement, Paris, France, 2014 designed by Agence VEA – Architects

....build on the whole triangular plot. Curved building forms repeat interior spaces and were dictated by the imperative of non-prominent angle for the children. -- ArchDaily

Source: Lindman archdaily.com

Plan, Source: archdaily.com

NOD, Torshamnsgatan, Stockholm, Sweden, 2014 by Scheiwiller Svensson Architects

Nod will function as an open public forum and as an attractive location for small and large businesses, combined with the teaching facilities for the University of Stockholm, Department of Computer and Information Science. -- ArchDaily

Source: Mathieu Ducros archdaily.com

Plan, Source: archdaily.com

Tower D2, La Défense, Paris, France designed by Anthony Bechu Tom Sheehan Architects

The building had to be very compact and the shape of the tower was rapidly defined to fit its surroundings. A rectangular shape would have been very difficult to fit within the cramped plot. Moreover, I wanted a soft and rounded shape around which that would fit into the dense context. -- ArchDaily