用于桥梁加固和升级的UHPC建筑产品和成品

IF 0.8 4区 工程技术 Q4 CONSTRUCTION & BUILDING TECHNOLOGY
Dr.-Ing. Dipl.-Kfm Hermann Weiher, Julius Mader M.Sc
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引用次数: 0

摘要

超高性能混凝土(UHPC)具有优异的抗压强度、耐久性和成型性,是桥梁加固和修复的理想材料。UHPC组件-例如混合锚板,桁架元件(例如CoBeam),桥梁轴承和定制的锚固或偏差块-可以取代传统的钢或钢筋混凝土部件。优点包括紧凑的设计、减轻重量、增强耐用性和显著的CO₂节约。UHPC允许精确适应复杂的几何形状,即使在小批量中也是经济可行的。其实际应用的一个关键因素是产品批准:2025年,德国获得了预应力系统中UHPC组件的第一个一般技术批准(abZ)。这标志着更广泛的市场采用的一个里程碑。这些应用展示了UHPC作为传统建筑材料的创新和可持续替代品的潜力。预计未来的发展将集中在标准化上,这将有助于在桥梁建设中更快、更广泛地实施。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Bauprodukte und Fertigteile aus UHPC für die Verstärkung und Ertüchtigung von Brücken

Bauprodukte und Fertigteile aus UHPC für die Verstärkung und Ertüchtigung von Brücken

Structural products and precast elements made of UHPC for strengthening of bridges

Ultra-High-Performance Concrete (UHPC) is characterized by outstanding compressive strength, durability, and formability, making it ideal for the strengthening and rehabilitation of bridges. UHPC components - such as hybrid anchor plates, truss elements (e.g., CoBeam), bridge bearings, and custom-fabricated anchorage or deviation blocks - can replace conventional steel or reinforced concrete parts. Advantages include compact design, reduced weight, enhanced durability, and significant CO₂ savings. UHPC allows for precise adaptation to complex geometries and is economically viable even in small quantities. A key factor in its practical use is product approval: in 2025, the first general technical approval (abZ) for UHPC components in prestressing systems was granted in Germany. This marks a milestone toward broader market adoption. The presented applications demonstrate UHPC's potential as an innovative and sustainable alternative to traditional construction materials. Future developments are expected to focus on standardization, which will facilitate quicker and more widespread implementation in bridge construction.

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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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