Dr.-Ing. Dipl.-Kfm Hermann Weiher, Julius Mader M.Sc
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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.
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.