BautechnikPub Date : 2025-09-29DOI: 10.1002/bate.70012
Christopher Krinitzki M.Sc., Luis Hotten B.Sc., Prof. Dr.-Ing. Christian Hartz
{"title":"Zur Kreislauffähigkeit von Deckenkonstruktionen","authors":"Christopher Krinitzki M.Sc., Luis Hotten B.Sc., Prof. Dr.-Ing. Christian Hartz","doi":"10.1002/bate.70012","DOIUrl":"https://doi.org/10.1002/bate.70012","url":null,"abstract":"<p><b>On the circularity of slab systems – Evaluation criteria for the reusability and recyclability of selected floor structures</b></p><p>Circular construction makes it possible to reconcile the need for new buildings and renovations with the increasing scarcity of resources as well as the preservation of embodied carbon and the reduction of new emissions. This study aims to sensitize all structural engineers to the fundamental aspects of circular construction. It presents simple evaluation criteria that can guide planning without the need for detailed prior knowledge, special software or specific circularity indices. The focus of this study is on the most volume-intensive building components - the slab systems. Therefore, six selected slab systems including the finishing layers are analysed with regard to their recycling potential. This study focuses in particular on the dismantling of entire components as well as the ability to separate the individual components. The analysis showed that in many of the slab systems examined, the components can only be separated at great effort and the materials used are usually downcycled. One solution is the design-for-deconstruction planning approach, which considers the dismantling capability of the components and thus focuses on the reuse of the components. Only one of the slab systems offers a high circular potential due to the easy separability of the components and high-quality recycling.</p>","PeriodicalId":55396,"journal":{"name":"Bautechnik","volume":"102 9","pages":"523-533"},"PeriodicalIF":0.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
BautechnikPub Date : 2025-09-04DOI: 10.1002/bate.70003
Achim Hettler, Steffen Kinzler, Markus Herten, Bert Schädlich, Patrick Becker
{"title":"Bericht des Arbeitskreises „Baugruben“","authors":"Achim Hettler, Steffen Kinzler, Markus Herten, Bert Schädlich, Patrick Becker","doi":"10.1002/bate.70003","DOIUrl":"https://doi.org/10.1002/bate.70003","url":null,"abstract":"<p><b>Report of the working group for recommendations on excavations: Eurocode 0, Eurocode 7, design of struts, drained or undrained analysis</b></p><p>The working group for excavations of the German Geotechnical Society (DGGT) has since 1968 regularly published recommendations for analysis, design and construction of excavations. The present report provides an overview of current works of the working group. In the reporting period, the focus is on the participation in commenting on the drafts of the new Eurocode 7, the design of struts and the design assuming drained or undrained conditions.</p>","PeriodicalId":55396,"journal":{"name":"Bautechnik","volume":"102 9","pages":"541-547"},"PeriodicalIF":0.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
BautechnikPub Date : 2025-08-27DOI: 10.1002/bate.70002
Prof. Dr.-Ing. Iurie Curoșu, Prof. Dr.-Ing. Daniel Balzani, Prof. Dr.-Ing. Steffen Freitag, Dr.-Ing. Gerrit Emanuel Neu, Dr. rer. nat. Ernst Niederleithinger, Prof. Dr.-Ing. Sven Simon, Prof. Dr.-Ing. Sebastian Weber
{"title":"Methoden zur Bewertung abgebauter Stahlbetonelemente für deren Wiederverwendung","authors":"Prof. Dr.-Ing. Iurie Curoșu, Prof. Dr.-Ing. Daniel Balzani, Prof. Dr.-Ing. Steffen Freitag, Dr.-Ing. Gerrit Emanuel Neu, Dr. rer. nat. Ernst Niederleithinger, Prof. Dr.-Ing. Sven Simon, Prof. Dr.-Ing. Sebastian Weber","doi":"10.1002/bate.70002","DOIUrl":"https://doi.org/10.1002/bate.70002","url":null,"abstract":"<p><b>Assessment methods for dismantled reinforced concrete elements in view of their reuse</b></p><p>The aim of the newly established Collaborative Research Center CRC 1683 “Interaction Methods for the Modular Reuse of Existing Structures” is to research the genuine reuse of concrete structures at a structural level and to develop fundamental scientific methods for this purpose. The idea is to deconstruct the existing structures into elements in a planned manner instead of demolishing them. To this end, the extracted elements must be characterized in terms of their properties, refurbished or strengthened if necessary, and assembled into new load-bearing structures in a modular fashion. Over the planned duration of the CRC the entire process chain will be systematically and collaboratively covered within sub-projects, project groups and interaction chains. The interaction chain “Governing Uncertainties” presented herein focuses on the development and testing of experimental, numerical and data-driven methods and strategies for a comprehensive yet fast and non-destructive characterization of the dismantled elements. On this basis, durability and load-bearing models are to be developed to enable the reliable prediction of the remaining service life under various load scenarios and exposures during reuse taking into account the multiple uncertainties. This paper presents the aims, interactions and methods of the sub-projects involved in the interaction chain.</p>","PeriodicalId":55396,"journal":{"name":"Bautechnik","volume":"102 8","pages":"483-492"},"PeriodicalIF":0.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
BautechnikPub Date : 2025-08-27DOI: 10.1002/bate.70001
Martin Rettinger M.Sc, Gabriel Moser M.Sc, Niklas Frank M.Sc, Bastian Glasmacher M.Sc, Felix Hofmann M.Sc, Jannis Rose M.Sc, Dr. Zlata Tošić, Sven Engel M.Sc, Dr.-Ing. Patrick Forman, Univ.-Prof. Dr.-Ing. Dr. h. c. Albert Albers, Prof. Dr.-Ing. Alexander Stark, Prof. Dr.-Ing. Daniel Lordick, Univ.-Prof. Dr.-Ing. Martin Claßen, Univ.-Prof. Dr.-Ing. Dr.-Ing. E. h. Josef Hegger, Prof. Dr. sc. techn Mike Schlaich, Prof. Dr.-Ing. habil. Peter Mark
{"title":"Design for Manufacturing and Assembly als Entwurfsprinzip für den modularen Betonfertigteilbau","authors":"Martin Rettinger M.Sc, Gabriel Moser M.Sc, Niklas Frank M.Sc, Bastian Glasmacher M.Sc, Felix Hofmann M.Sc, Jannis Rose M.Sc, Dr. Zlata Tošić, Sven Engel M.Sc, Dr.-Ing. Patrick Forman, Univ.-Prof. Dr.-Ing. Dr. h. c. Albert Albers, Prof. Dr.-Ing. Alexander Stark, Prof. Dr.-Ing. Daniel Lordick, Univ.-Prof. Dr.-Ing. Martin Claßen, Univ.-Prof. Dr.-Ing. Dr.-Ing. E. h. Josef Hegger, Prof. Dr. sc. techn Mike Schlaich, Prof. Dr.-Ing. habil. Peter Mark","doi":"10.1002/bate.70001","DOIUrl":"https://doi.org/10.1002/bate.70001","url":null,"abstract":"<p><b>Design for Manufacturing and Assembly as a design principle for modular precast concrete construction: Application examples from the DFG Priority Programme 2187</b></p><p>While the German construction industry has been struggling with stagnating productivity growth for several decades, other manufacturing industries have been able to significantly increase their productivity through digitalisation, automation and rationalisation of manufacturing processes. The Design for Manufacturing and Assembly (DfMA) principle, which considers the planning of manufacturing and assembly as an integral part of the design process and systematically quantifies and evaluates their impact on time and cost at an early stage, has been a major contributor to this productivity growth. The construction industry can also benefit from the principles of DfMA and apply them, for example, in the design of industrially prefabricated structures made of modular precast concrete elements. In the Priority Programme 2187 “Adaptive modularised constructions made in a flux” by the German Research Foundation, such modular construction methods are being investigated in a holistic and interdisciplinary approach, from design and production processes to automated quality control and digital representation. This article shows how DfMA is applied as a design principle in this context and which design solutions have been derived from it in the individual subprojects of SPP 2187.</p>","PeriodicalId":55396,"journal":{"name":"Bautechnik","volume":"102 8","pages":"458-470"},"PeriodicalIF":0.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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