Prof. Dr.-Ing. Alexander Schumann, Dr.-Ing. Juliane Wagner, Dr.-Ing. Melchior Deutscher
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引用次数: 0
Abstract
Ultra-slim prestressed carbon concrete girders – Pilot application in a school sports hall Part 1: Design and production of the components
As part of a pilot project, a roof structure made of prestressed carbon concrete was realized for the first time under real construction and usage conditions in Dresden. The new single-court sports hall at the 49th Primary School features a fully modular roof system consisting of prestressed carbon concrete girders and thin prestressed carbon concrete slabs. The aim was to create resource-efficient, durable, and slender structures outside of a classical research framework. Despite the absence of official standards for prestressing with carbon reinforcement, the project achieved project-specific approval (ZiE) through extensive preliminary investigations, conservative design approaches, and targeted experimental testing. The project impressively demonstrates that carbon concrete combined with prestressing offers significant advantages in terms of material savings, durability, and resource efficiency. At the same time, key challenges were identified, such as manufacturing tolerances for extremely slender cross-sections, stability verification during transport and assembly, and the development of suitable connection details for thin slabs. Special attention was given to controlling deformations and ensuring sufficient failure warning under extremely slender construction conditions. The project forms an essential basis for further transferring research results into practice and shows ways in which carbon concrete can be used more economically and efficiently in future construction projects.
期刊介绍:
Beton- und Stahlbetonbau veröffentlicht anwendungsorientierte Beiträge zum gesamten Massivbau. Neueste wissenschaftliche Erkenntnisse, Themen aus der Baupraxis und anwendungsorientierte Beiträge über neue Normen, Vorschriften und Richtlinien machen Beton- und Stahlbetonbau zu einem unverzichtbaren Begleiter und einer der bedeutendsten Zeitschriften für den Bauingenieur, seit mehr als 100 Jahren. Mit Berichten über ausgeführte Projekte und Innovationen im Baugeschehen erhält der Ingenieur weitere praktische Hilfestellungen für seine tägliche Arbeit.
Themenüberblick:
Entwurf, Berechnung, Bemessung und Ausführung sämtlicher Konstruktionen aus Beton
Instandsetzung und Betonerhaltung
Bauwerkserhaltung und - instandsetzung
Nachrechnung bestehender Brückenbauwerke
Bauwerksüberwachung
Bewehrungs- und Befestigungstechnik
Entwicklungen der Baustoffe
Spannbeton
ausgeführte Projekte
Normen.