Reliability as a Key Driver for a Sustainable Design of Adaptive Load-Bearing Structures

Efinger, Dshamil; Ostertag, Andreas; Dazer, Martin; Borschewski, David; Albrecht, Stefan; Bertsche, Bernd

doi:10.3390/su14020895

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Reliability as a Key Driver for a Sustainable Design of Adaptive Load-Bearing Structures

^1,*,†

^2,†

⁴

and

Bernd Bertsche

Institute of Machine Components, University of Stuttgart, 70569 Stuttgart, Germany

Thales Deutschland GmbH, 71254 Ditzingen, Germany

Institute for Acoustics and Building Physics, University of Stuttgart, 70569 Stuttgart, Germany

⁴

Fraunhofer Institute for Building Physics IBP, 70569 Stuttgart, Germany

Author to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Academic Editor: Paris Fokaides

Sustainability 2022, 14(2), 895; https://doi.org/10.3390/su14020895

Received: 16 December 2021 / Revised: 8 January 2022 / Accepted: 10 January 2022 / Published: 13 January 2022

(This article belongs to the Special Issue Quality as Driver for Sustainable Construction)

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Abstract

The consumption of construction materials and the pollution caused by their production can be reduced by the use of reliable adaptive load-bearing structures. Adaptive load-bearing structures are able to adapt to different load cases by specifically manipulating internal stresses using actuators installed in the structure. One main aspect of quality is reliability. A verification of reliability, and thus the safety of conventional structures, was a design issue. When it comes to adaptive load-bearing structures, the material savings reduce the stiffness of the structure, whereby integrated actuators with sensors and a control take over the stiffening. This article explains why the conventional design process is not sufficient for adaptive load-bearing structures and proposes a method for demonstrating improved reliability and environmental sustainability. For this purpose, an exemplary adaptive load-bearing structure is introduced. A linear elastic model, simulating tension in the elements of the adaptive load-bearing structure, supports the analysis. By means of a representative local load-spectrum, the operating life is estimated based on Woehler curves given by the Eurocode for the critical notches. Environmental sustainability is increased by including reliability and sustainability in design. For an exemplary high-rise adaptive load-bearing structure, this increase is more than 50%. View Full-Text

Keywords: adaptive load-bearing structure; lightweight structure; reliability analysis; sustainable and reliable design; quality design; adaptive building

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Efinger, D.; Ostertag, A.; Dazer, M.; Borschewski, D.; Albrecht, S.; Bertsche, B. Reliability as a Key Driver for a Sustainable Design of Adaptive Load-Bearing Structures. Sustainability 2022, 14, 895. https://doi.org/10.3390/su14020895

AMA Style

Efinger D, Ostertag A, Dazer M, Borschewski D, Albrecht S, Bertsche B. Reliability as a Key Driver for a Sustainable Design of Adaptive Load-Bearing Structures. Sustainability. 2022; 14(2):895. https://doi.org/10.3390/su14020895

Chicago/Turabian Style

Efinger, Dshamil, Andreas Ostertag, Martin Dazer, David Borschewski, Stefan Albrecht, and Bernd Bertsche. 2022. "Reliability as a Key Driver for a Sustainable Design of Adaptive Load-Bearing Structures" Sustainability 14, no. 2: 895. https://doi.org/10.3390/su14020895

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Author Biographies

Dshamil Efinger

Dshamil Efinger graduated as a Master of Science in Mechanical Engineering at the University of Stuttgart, Germany, in 2019. Since then, he is pursuing his PhD studies as a research assistant in the Reliability Engineering Department at the Institute for Machine Elements and the Technology Transfer Initiative at the University of Stuttgart. As a current member of the DFG-funded Collaborative Research Centre 1244, he investigates resilience, monitorability, and safety of adaptive load-bearing structures.

Andreas Ostertag

Dr. Andreas Ostertag received his academic degree of a Master of Science in Mechanical Engineering from University of Stuttgart, Germany in 2015. Following that, he worked as a research assistant at the Institute of Machine Components and gained his PhD in 2021 in the field of reliability engineering. He is trained as a reliability black belt and enhanced his knowledge in several industry and research projects also in the field of functional safety. As a previous member of the DFG-funded Collaborative Research Centre 1244, he investigates resilience and safety of adaptive load-bearing structures. For his research, he was awarded with the Ralph A. Evans/P. K. McElroy- Award of the RAMS-Symposium in 2020. He is currently employed as a RAMS Manager for Thales Deutschland GmbH, Ditzingen, Germany.

Martin Dazer

Dr. Martin Dazer studied Mechanical Engineering at the University of Stuttgart in Germany and received his academic degree Master of Science in 2014. Since he finished his PhD studies in the field of reliability engineering in 2019, he has been the head of the reliability department at the Institute of Machine Components. His research focuses on reliable product design by means of optimal test planning as well as improving reliability demonstration using prior knowledge and suitable load spectrums. For his PhD thesis, he was awarded with the Südwestmetall promotional award in 2020.

David Borschewski

David Borschewski completed his master’s degree in building physics in 2018 at the University of Stuttgart, Germany. In 2015−2019, he worked as an engineer in the planning of technical building equipment. Since 2019, he conducts research at the Institute of Acoustics and Building Physics in the field of sustainability and life cycle assessment and is working on his PhD as a member of the Collaborative Research Centre 1244.

Stefan Albrecht

Dr. Stefan Albrecht is with the Department Life Cycle Engineering GaBi at Fraunhofer IBP since 2005. He works in the field of research and development and is a specialist for sustainable materials and product systems. After studying mechanical engineering, he received his doctorate in 2014 from the Faculty of Civil and Environmental Engineering at the University of Stuttgart. He now has 15 years professional skills and experience in Life Cycle Assessment LCA, Life Cycle Engineering, and Life Cycle Sustainability. He gained international experience in project management both in public-funded and in industrial projects.

Bernd Bertsche

Prof. Bernd Bertsche began his professional career at Daimler AG in Stuttgart from 1989 to 1992. He has been a Professor of Mechanical Engineering at the Institute of Machine Components at the University of Stuttgart, as well as the Head of the Reliability Engineering Department since 1996. In 2001, he became Head of the Institute, as well as Head of the VDI Advisory Board “Reliability Management”. Since 2003, he has been a member of the DIN/DKE Standardization Committee K132 “Reliability”. He was elected to be a member of the review board of the German Research Foundation in 2012. In 2013, he was elected to be the managing director of the WiGeP e.V. As of 2015, he has been a member of the National Academy of Science and Engineering.

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Reliability as a Key Driver for a Sustainable Design of Adaptive Load-Bearing Structures

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