Reduction of the lateral thrust of masonry arches and vaults with FRP composites

Lorenzis, Laura De; Dimitri, Rossana; Tegola, Antonio La

doi:10.1016/j.conbuildmat.2006.07.009

Cited by 67 publications

(32 citation statements)

References 5 publications

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“…If the FRP strip is placed at the intrados, the interfacial normal (peeling) tensile stresses are likely to lead to mixed-mode fracture of the masonry substrate, and thus to accelerate debonding with respect to the mode-II fracture case (Aiello et al 2004, CNR 2004, Foraboschi 2004. Debonding phenomena have been observed in several experiments on arches strengthened at the intrados, so that the use of anchoring devices as preventive measures has been proposed (Eshwar et al 2003, De Lorenzis et al 2007). However, neither analytical nor numerical approaches have been proposed so far to tackle the problem from a mechanical standpoint.…”

Section: Introductionmentioning

confidence: 99%

Interfacial stress analysis and prediction of debonding for a thin plate bonded to a curved substrate

Lorenzis¹,

Zavarise²

2009

International Journal of Non-Linear Mechanics

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This paper focuses on the analytical and numerical modeling of the interface between a rigid substrate with simple constant curvature and a thin bonded plate. The interfacial behavior is modeled by independent cohesive laws in the normal and tangential directions, coupled with a mixed-mode fracture criterion. The newly developed analytical model determines the interfacial shear and normal stress distributions as functions of the substrate curvature, during the various behavioral stages of the interface prior to the initiation of debonding. The model is also able to predict the debonding load and the effective bond length. In the numerical model the interface is modeled by zero-thickness node-to-segment contact elements, in which both the geometrical relationships between the nodes of the discretized problem and the interface constitutive laws are suitably defined. Numerical results and comparisons between the predictions of the two models are presented.

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Section: Introductionmentioning

confidence: 99%

Interfacial stress analysis and prediction of debonding for a thin plate bonded to a curved substrate

Lorenzis¹,

Zavarise²

2009

International Journal of Non-Linear Mechanics

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“…The structure has been analyzed following the approach of the limit analysis of the collapse mechanisms [9,11,14,15,46e51] briefly summarized in this section. The analysis consists in considering a system representing the entire structure (global mechanisms) or a part of it (local mechanisms) subjected to permanent loads and to a live load system proportional to a load multiplier l. The considered system becomes a single degree of freedom mechanism introducing a number of hinges equal to n þ 1, where n is the degree of static indeterminacy of the system.…”

Section: Analysis Approachmentioning

confidence: 99%

Carbon-FRCM materials for structural upgrade of masonry arch road bridges

D’Ambrisi

Focacci

Alecci

et al. 2015

Composites Part B: Engineering

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“…Retrofitting systems based on TRM have been recently presented for the strengthening of masonry walls against, especially against seismic in-plane and out-of-plane shear forces [1][2][3][4][5][6]; however, the performance of TRM reinforcement against buckling failure and out-of-plane second order effects has not yet been widely investigated.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Brick Masonry Walls Strengthened with Textile Reinforced Mortar

Bernat-Masó

Roca

2014

KEM

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Abstract. The paper presents an experimental research on the use of Textile Reinforced Mortar (TRM) for the strengthening of brick load bearing masonry walls subjected to eccentric loading. Particular attention is given to the case of slender walls and to the ability of TRM reinforcement to enhance the response of such walls against buckling failure. The research has allowed the study of the influence of different mortar and fibre grid types and the possible benefit of using anchors to improve the connection between the walls and the external reinforcement. The experimental campaign has consisted of twelve tests on full scale wall specimens using a specific testing device designed to create a hinged boundary condition at the top and bottom wall ends. It has been observed that TRM reinforcement provides a significant increase of over 100% of the initial load bearing capacity under eccentric axial load. Moreover, a stiffer and more homogeneous behavior is noticed when TRM is applied. A simplified analytical method to calculate the ultimate axialbending combination for TRM strengthened brick masonry walls, in agreement with the experiments, is also presented.

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Reduction of the lateral thrust of masonry arches and vaults with FRP composites

Cited by 67 publications

References 5 publications

Interfacial stress analysis and prediction of debonding for a thin plate bonded to a curved substrate

Interfacial stress analysis and prediction of debonding for a thin plate bonded to a curved substrate

Carbon-FRCM materials for structural upgrade of masonry arch road bridges

Experimental Study of Brick Masonry Walls Strengthened with Textile Reinforced Mortar

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