Ultraschlanke vorgespannte Carbonbetonbinder – Pilotanwendung in einer Schulsporthalle Teil 1

IF 0.8 4区 工程技术 Q4 CONSTRUCTION & BUILDING TECHNOLOGY
Prof. Dr.-Ing. Alexander Schumann, Dr.-Ing. Juliane Wagner, Dr.-Ing. Melchior Deutscher
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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.

Abstract Image

超薄预应力碳混凝土粘合剂-试点应用于学校体育馆第1部分
超薄预应力碳混凝土梁-在学校体育馆的试点应用第1部分:构件的设计和生产作为试点项目的一部分,在德累斯顿的实际建筑和使用条件下,首次实现了由预应力碳混凝土制成的屋顶结构。位于第49小学的新运动场采用全模块化屋顶系统,由预应力碳混凝土梁和薄预应力碳混凝土板组成。其目的是在经典的研究框架之外创造资源高效、耐用和细长的结构。尽管缺乏碳加固预应力的官方标准,但该项目通过广泛的初步调查、保守的设计方法和有针对性的实验测试,获得了项目特定批准(ZiE)。该项目令人印象深刻地表明,碳混凝土与预应力相结合,在节约材料、耐用性和资源效率方面具有显著优势。同时,研究人员还确定了关键挑战,如极细截面的制造公差、运输和组装过程中的稳定性验证,以及薄板合适连接细节的开发。特别注意控制变形,并确保在极其细长的施工条件下有足够的故障预警。该项目为进一步将研究成果转化为实践提供了必要的基础,并为碳混凝土在未来的建设项目中更经济高效地使用提供了途径。
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来源期刊
Beton- und Stahlbetonbau
Beton- und Stahlbetonbau 工程技术-材料科学:表征与测试
CiteScore
2.50
自引率
36.40%
发文量
168
审稿时长
6-12 weeks
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.
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