Probabilistische Bewertung redundanter Befestigungen in faserbewehrtem Beton/Probabilistic Assessment of Redundant Fastenings in Fiber-Reinforced Concrete

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Cover of Volume: Bauingenieur Volume 100 (2025), Edition 11
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Organ des VDI Fachbereichs Bautechnik

Volume 100 (2025), Edition 11

Authors:
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Publisher
VDI fachmedien, Düsseldorf
Publication year
2025
ISSN-Online
0005-6650
ISSN-Print
0005-6650

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Volume 100 (2025), Edition 11

Probabilistische Bewertung redundanter Befestigungen in faserbewehrtem Beton/Probabilistic Assessment of Redundant Fastenings in Fiber-Reinforced Concrete

Authors:
,
ISSN-Print
0005-6650
ISSN-Online
0005-6650
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The construction industry increasingly develops sustainable concretes with alternative cements, recycled aggregates, and fiber reinforcement to reduce emissions and extend the service life of structures. Fiber-reinforced concretes with steel or plastic fibers find wide application in different load-bearing elements. An efficient method for fastening various non-structural elements to concrete is the use of power-actuated fasteners (PAFs), which convince by rapid installation and easy handling. Due to the high variability in load capacity and installation quality, this technology requires a detailed reliability analysis in safety relevant applications. The aim of this study is to develop engineering evaluation methods and to investigate the performance of PAFs in fiber-reinforced concrete. Experimental tests and a probabilistic redundancy assessment were conducted in MATLAB. Two scenarios were analyzed: a superposition method and a cascade model. The results from 320 tests with a newly developed PAF system in various fiber concretes provide valuable insights for design, redundancy consideration, research, and practical applications.

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