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Frankfurt am Main, Germany

Kloft H.,Osd Office for Structural Design
Journal of the International Association for Shell and Spatial Structures | Year: 2011

Eduardo Torroja described the aim of designing load-bearing structures as the interaction of material, structure and form. Heinz Isler (1926-2009) demonstrated the potential of concrete by designing shell structures following the physical laws and guided by his intuition. The basic principles of his form-finding processes he found in numerous studies with physical models and through observations in nature. Obviously, no "logic of form" derived from engineering logic can be found in today's free-form architecture, but the questions arise: what are the leading parameters for form-finding, and how do the resulting so-called "nonstandard structures" behave in relation to Torroja's and Isler's understanding of structural design. The first part of this article gives an introduction and historical overview in the interaction of material, structure and form. On basis of my own experiences in realizing nonstandard structures the second part focuses on the influence of structural design in today's form-finding processes. Finally, in a third part conceptual ideas are presented on how logic and form in non-standard architecture could be merged in future building.


Kloft H.,Osd Office for Structural Design | Fath K.,Osd Office for Structural Design | Wilhelm V.,Wilhelm Partner
Stahlbau | Year: 2011

Lightness of roof structures does not mean to minimize the building mass. As well, the use of glass and steel will not guarantee a sophisticated appearance of a construction. Designing a lightweight, transparent structure is much more a task of optimization by intelligent arrangement of the building mass and by the defined use of the materials glass and steel. An essential aspect is the structural design in relation to the architectural idea and the urban context. All together, this needs a close cooperation of architect and engineer from the very beginning of a design process. In the following three lightweight roof structures are presented and the role of the engineers will be discussed. All projects are designed by Klaus Fäth and Harald Kloft, the principals of the Frankfurt based engineering practice osd - office for structural design in close cooperation with Viktor Wilhelm from Stuttgart. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Mahl F.,Osd Office for Structural Design | Kloft H.,Osd Office for Structural Design
Stahlbau | Year: 2015

The rapidly increasing technological development over the last years and decades does have a growing influence on the building industry. The challenge is to integrate a multitude of new technologies into the planning process and the construction phase. This trend is indicated by involving more and more specialists and by requiring more coordination between the different stages of the planning process. The approach of integral planning is predestined to control the increasing complexity in the planning process. The facade does play a key role in this context. Especially for renovation and building redevelopment, the integrated approach is beneficial to develop adequate retrofitting and revitalization measures for the building envelope. © 2015 Ernst & Sohn GmbH & Co. KG.

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