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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Experimental and numerical study on the load-bearing behaviour of steel-fibre-reinforced concrete for precast tunnel lining segments under concentrated loads
Author(s): Rolf Breitenbücher; Günther Meschke; Fanbing Song; Michael Hofmann; Yijian Zhan
Publication: Special Publication
Appears on pages(s): 331-340
Keywords: Concentrated loads, steel-fibre-reinforced concrete, load-bearing behaviour, failure mode, finite element analysis.
Abstract:To investigate the behaviour of precast tunnel lining segments subjected to concentrated loads on a small scale, laboratory tests on concrete prisms under partial-area loading in
conjunction with numerical analyses were performed. Various parameters influencing the load-bearing and fracture behaviour of plain concrete (PC) and steel-fibre-reinforced concrete (SFRC) under concentrated loads are considered, including fibre properties (dimension, aspect ratio, tensile strength), fibre dosage and orientation, area ratio and eccentricity of load. The effects of these parameters on the ultimate bearing capacity, stress-displacement behaviour, failure mode and crack characteristics are analysed and discussed. Parallel to the experimental investigations, numerical simulations using a continuum coupled damageplasticity model for triaxially loaded cementitious material were performed. It is shown that the numerical analysis is able to realistically capture the structural behaviour and the crack pattern of partially loaded PC and SFRC specimens.
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