Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Simple Truss FE Modelling to Analyze FRCM-Reinforced Masonry Under Complex Test Setup
A general and simple numerical strategy that can be used in common practice by unexperienced users to analyze masonry elements reinforced with Fiber Reinforced Cementitious Matrix (FRCM) subjected to bending is presented. The reinforcement package is modeled with elastic FRCM quadrilateral elements interacting with the substrate through nonlinear interfaces. The bricks are meshed with elastic quadrilateral elements, while interfaces between substrate and FRCM reinforcement are modeled with trusses either elastic perfectly brittle or elastic perfectly ductile (cutoff bars). The goal is to reproduce the non-linear behavior of direct shear tests considering not only parallel stresses at the interface but also normal ones. Tangential stresses at the interface are modeled with three cutoff bars in parallel, two of which are elastic perfectly brittle, and one is elastic perfectly ductile. Normal stresses instead, are meshed with elastic perfectly brittle cutoff bars perpendicularly placed at the interface and connected both with the substrate and with the reinforcement pack. The procedure is compared on laboratory-tested carbon FRCM-reinforced masonry bricks, for which a variety of experimental data are available, and on a sophisticated homemade numerical procedure. From an in-depth analysis of results obtained and from a detailed observation of non-linearities developing in the structural model, the reliability and simplicity of the proposed approach are assessed.
Simple Truss FE Modelling to Analyze FRCM-Reinforced Masonry Under Complex Test Setup
A general and simple numerical strategy that can be used in common practice by unexperienced users to analyze masonry elements reinforced with Fiber Reinforced Cementitious Matrix (FRCM) subjected to bending is presented. The reinforcement package is modeled with elastic FRCM quadrilateral elements interacting with the substrate through nonlinear interfaces. The bricks are meshed with elastic quadrilateral elements, while interfaces between substrate and FRCM reinforcement are modeled with trusses either elastic perfectly brittle or elastic perfectly ductile (cutoff bars). The goal is to reproduce the non-linear behavior of direct shear tests considering not only parallel stresses at the interface but also normal ones. Tangential stresses at the interface are modeled with three cutoff bars in parallel, two of which are elastic perfectly brittle, and one is elastic perfectly ductile. Normal stresses instead, are meshed with elastic perfectly brittle cutoff bars perpendicularly placed at the interface and connected both with the substrate and with the reinforcement pack. The procedure is compared on laboratory-tested carbon FRCM-reinforced masonry bricks, for which a variety of experimental data are available, and on a sophisticated homemade numerical procedure. From an in-depth analysis of results obtained and from a detailed observation of non-linearities developing in the structural model, the reliability and simplicity of the proposed approach are assessed.
Simple Truss FE Modelling to Analyze FRCM-Reinforced Masonry Under Complex Test Setup
Lecture Notes in Civil Engineering
Milani, Gabriele (Herausgeber:in) / Ghiassi, Bahman (Herausgeber:in) / Pingaro, Natalia (Autor:in)
International Brick and Block Masonry Conference ; 2024 ; Birmingham, United Kingdom
21.01.2025
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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