Sustainable Tall Buildings – Some Introductory Remarks 3
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ctbuh.org/papers Title: Sustainable Tall Buildings – Some Introductory Remarks Authors: Werner Sobek, Founder, Werner Sobek Group Heiko Trumpf, Werner Sobek Group Subject: Sustainability/Green/Energy Keywords: Integrated Design Sustainability Sustainability Certification Publication Date: 2008 Original Publication: CTBUH 2008 8th World Congress, Dubai Paper Type: 1. Book chapter/Part chapter 2. Journal paper 3. Conference proceeding 4. Unpublished conference paper 5. Magazine article 6. Unpublished © Council on Tall Buildings and Urban Habitat / Werner Sobek; Heiko Trumpf Sustainable Tall Buildings – Some Introductory Remarks Prof. Dr.-Ing. Werner Sobek and Dr.-Ing. Heiko Trumpf Werner Sobek Ingenieure, Albstr. 14, 70597 Stuttgart/Germany, Email: [email protected] Abstract This paper considers the basic requirements needed to achieve truly sustainable buildings. It discusses possible ways of modifying the cooperation between all project partners responsible for the implementation of a green design. It further identifies the concept of triple zero as a new approach towards vital ecological issues. The paper also proposes a new certification procedure offering a comprehensive assessment and classification of sustainable tall buildings. Keywords: Triple Zero, Integrated Design, Certification Introduction classification of structures according to their Over the last five years the focus of building design sustainability. This classification system is about to has shifted from predominantly architectural and become the governing factor for theWerner assessment Sobek of functional approaches to more exhaustive approaches buildings, especially for office, [email protected] and residential putting a special emphasis on sustainability. Today buildings, in Germany and beyond. Biographyinvestors, building developers, and project managers do This paper shows a way to successfully fulfil the Wernerspecify Sobek certain studied demands architecture for sustainability and structural in engineeringthe first atdemands the University for full of sustainabilityStuttgart in Germany. by applying In 1991 an integratedhe became full-timestages of professor a project. at the But University these demandsof Hanover are in Germany.simply Onedesign year process, later he foundedthe triple his zeroown engineeringconcept, and consultancy the new inadditional Stuttgart, requirements Germany. In leaving1995 Werner the conventional Sobek took overcontract the famouscertification Institute forprocedure Lightweight proposed Structures by the atGeSBC. the University of Stuttgartdocuments as successorand planning to Frei process Otto. In unchanged. 2001 he also Specialist took over the chair of structural engineer Joerg Schlaich, fusing the two institutes into the new Institute for Lightweight Structures and Conceptual Design (ILEK). consultants are as yet insufficiently involved in the first Representative life-time phases design phases, although their contribution is vital for a While the ILEK specializes on the research into new materials and newThe concepts life-span for of lightweighta structure canand be adaptive divided structures, into five really ecological design. Moreover, sustainability is often periods, subdivided into several sub items: Wernermerely Sobekused as Ingenieure an argument is onefor architecturalof the leading competitions engineering consultancies in Europe. It excels through excellent engineer- ing combined with first-rate design of constructional elements. A particular1. Preliminary focus lies Phase on special structures in steel, glass, and marketing purposes, the final result not matching the - Definition of building task, data titanium,promises concrete, made at antextiles earlier and stage. wood. Werner Sobek Ingenieure has offices in Stuttgart/Germany, Frankfurt/Germany, and New York, NY. collection In order to develop and implement truly sustainable - Architectural and functional concept building concepts, an interdisciplinary planning process The works of Werner Sobek have been awarded numerous awards and distinctions,(possibly e. g. thedefined DuPont for aBenedictus competition) Award, is indispensable. All planners involved in the project 2. Realisation Phase theshould Design participate Award of at the the Industrial earliest Fabricsproject Associationphase possible. International, the European Gluelam Award, the Fritz Schumacher Award, the iF Design Award, the SEAOI Structural Engineering Award, AIA -awardsSchematic of the American design Institute of Architec- Moreover, coherent guidelines and assessments are - Detailed design ture,necessary the Hugo to ensureHaering a Award,coherent the and‘Building sustainable of the designYear’ Award of the Association of Architects and Engineers of Ham- burg, the Fazlur Rahman Khan Medal as well as the UIA’s Auguste Perret Prize.- Construction design process in all phases of a project. Sustainability has to be - Bidding and contract award the governing factor in the compilation of all 3. Construction specifications and contract documents. The present paper - On-site activities proposes an approach towards achieving this aim. This - Re-design approach will hitherto be called integrated design. 4. Operation Phase Sustainability covers social, ecologic, and - Utilisation economic questions. The social aspect comprises cultural - Conversion considerations, comfort, social integration, health, 5. Removal Phase ergonomics, and functionality. It is generally taken care - Deconstruction of by architects. The economic aspect is assessed by - Disposal of waste value-engineering and commercial departments. The ecological aspect, however, is often reduced to energy Design Groups and Involved Parties efficiency only. Ecology is thus taken into consideration Depending on the extent and type of structure, but to a relatively limited degree. The present paper various disciplines are required for the design process. proposes a much more comprehensive target concept The following list is a typical compilation of disciplines called triple zero – zero energy, zero emission, zero involved in a larger project. waste. Developer: Last but not least a national certification procedure - Principal, Investor is presented offering an advanced tool for the - Project manager CTBUH 8th World Congress 2008 1 Sustainable Tall Buildings – Some Introductory Remarks Prof. Dr.-Ing. Werner Sobek and Dr.-Ing. Heiko Trumpf Werner Sobek Ingenieure, Albstr. 14, 70597 Stuttgart/Germany, Email: [email protected] Abstract This paper considers the basic requirements needed to achieve truly sustainable buildings. It discusses possible ways of modifying the cooperation between all project partners responsible for the implementation of a green design. It further identifies the concept of triple zero as a new approach towards vital ecological issues. The paper also proposes a new certification procedure offering a comprehensive assessment and classification of sustainable tall buildings. Keywords: Triple Zero, Integrated Design, Certification Introduction classification of structures according to their Over the last five years the focus of building design sustainability. This classification system is about to has shifted from predominantly architectural and become the governing factor for the assessment of functional approaches to more exhaustive approaches buildings, especially for office, retail and residential putting a special emphasis on sustainability. Today buildings, in Germany and beyond. investors, building developers, and project managers do This paper shows a way to successfully fulfil the specify certain demands for sustainability in the first demands for full sustainability by applying an integrated stages of a project. But these demands are simply design process, the triple zero concept, and the new additional requirements leaving the conventional contract certification procedure proposed by the GeSBC. documents and planning process unchanged. Specialist consultants are as yet insufficiently involved in the first Representative life-time phases design phases, although their contribution is vital for a The life-span of a structure can be divided into five really ecological design. Moreover, sustainability is often periods, subdivided into several sub items: merely used as an argument for architectural competitions 1. Preliminary Phase and marketing purposes, the final result not matching the - Definition of building task, data promises made at an earlier stage. collection In order to develop and implement truly sustainable - Architectural and functional concept building concepts, an interdisciplinary planning process (possibly defined for a competition) is indispensable. All planners involved in the project 2. Realisation Phase should participate at the earliest project phase possible. - Schematic design Moreover, coherent guidelines and assessments are - Detailed design necessary to ensure a coherent and sustainable design - Construction design process in all phases of a project. Sustainability has to be - Bidding and contract award the governing factor in the compilation of all 3. Construction specifications and contract documents. The present paper - On-site activities proposes an approach towards achieving this aim. This - Re-design approach will hitherto be called integrated design. 4. Operation Phase Sustainability covers social, ecologic, and - Utilisation economic questions. The social aspect comprises cultural - Conversion considerations, comfort, social integration, health, 5. Removal Phase