Instandsetzung und Verstärkung von Stahlkomponenten mit vorgespannten CFK-Materialien

authored by: Elyas Ghafoori, Joshua Possekel, Hossein Heydarinouri, Ardalan Hosseini, Lingzhen Li, Sizhe Wang
Abstract: Repair and strengthening of steel bridges with CFRP materials. The International Energy Agency estimates that the direct CO₂ emissions resulting from crude steel production are approximately 1.4 t of CO₂ per ton of steel produced. To meet the Net-Zero 2050 targets, the steel industry must take significant steps to reduce greenhouse gas emissions. One effective approach to achieve this goal is to promote the repair or reuse of existing structures, thereby lessening the demand for crude steel production. The utilization of carbon fibre-reinforced polymer (CFRP) composites has demonstrated considerable potential in extending the lifespan of steel structures. This study addresses the primary distinctions in design requirements for CFRP strengthening of steel members. Furthermore, it provides an overview of research conducted on non-prestressed/prestressed bonded/unbonded strengthening systems employing CFRP plates and rods for steel girders, plates, and connections. Additionally, the study explains a few examples of aging steel bridges that were strengthened by the developed retrofit systems using CFRP materials, showcasing the real-world implementation of these advancements.
Organisation(s): Institute of Steel Construction
External Organisation(s): Swiss Federal Laboratories for Material Science and Technology (EMPA)
Mytra Robotics Inc.
Nanyang Technological University (NTU)
Type: Contribution in non-scientific journal
Journal: STAHLBAU
Volume: 94
Pages: 1-11
No. of pages: 11
ISSN: 0038-9145
Publication date: 16.01.2025
Publication status: Published
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction, Mechanics of Materials, Mechanical Engineering, Metals and Alloys
Electronic version(s): https://doi.org/10.1002/stab.202400009 (Access: Closed)

BibTeX

@misc{8949c82c020f4e1a9b9de5b44a149153,
title = "Instandsetzung und Verst{\"a}rkung von Stahlkomponenten mit vorgespannten CFK-Materialien",
abstract = "Repair and strengthening of steel bridges with CFRP materials. The International Energy Agency estimates that the direct CO2 emissions resulting from crude steel production are approximately 1.4 t of CO2 per ton of steel produced. To meet the Net-Zero 2050 targets, the steel industry must take significant steps to reduce greenhouse gas emissions. One effective approach to achieve this goal is to promote the repair or reuse of existing structures, thereby lessening the demand for crude steel production. The utilization of carbon fibre-reinforced polymer (CFRP) composites has demonstrated considerable potential in extending the lifespan of steel structures. This study addresses the primary distinctions in design requirements for CFRP strengthening of steel members. Furthermore, it provides an overview of research conducted on non-prestressed/prestressed bonded/unbonded strengthening systems employing CFRP plates and rods for steel girders, plates, and connections. Additionally, the study explains a few examples of aging steel bridges that were strengthened by the developed retrofit systems using CFRP materials, showcasing the real-world implementation of these advancements.",
keywords = "adhesive bonded, carbon fiber-reinforced polymer (CFRP), fatigue, mechanical fixation, prestressing, steel bridges, steel strengthening",
author = "Elyas Ghafoori and Joshua Possekel and Hossein Heydarinouri and Ardalan Hosseini and Lingzhen Li and Sizhe Wang",
note = "Publisher Copyright: {\textcopyright} 2025, Ernst und Sohn. All rights reserved.",
year = "2025",
month = jan,
day = "16",
doi = "10.1002/stab.202400009",
language = "Deutsch",
volume = "94",
pages = "1--11",
journal = "STAHLBAU",
issn = "0038-9145",
publisher = "Wiley-Blackwell",
}