Out-of-plane structural identification of a masonry infill wall inside beam-column RC frames

Angelis, Alessandra De; Pecce, Marisa

doi:10.1016/j.engstruct.2018.06.072

Cited by 30 publications

(6 citation statements)

References 23 publications

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“…Other authors performed dynamic tests to characterize the OOP dynamics of infills. Nicoletti et al [41,110] and De Angelis and Pecce [112] performed ILTs (using an instrumented hammer) on several in-situ and laboratory infill masonry walls, while Varum et al [113] and Furtado et al [114,115] adopted AVTs. A totality of forty-nine infill masonry wall OOP tests has been collected and the main features are reported in Table 2.…”

Section: Dynamic Tests On Infill Masonry Wallsmentioning

confidence: 99%

Vibration-Based Tests and Results for the Evaluation of Infill Masonry Walls Influence on the Dynamic Behaviour of Buildings: A Review

Nicoletti

Arezzo

Carbonari

et al. 2022

Arch Computat Methods Eng

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Tests on infill masonry walls have been widely performed by many researchers and for a long time with the main purpose of characterising the infill performance under earthquake-type excitations. However, most of these works deal with laboratory tests on purpose-built specimens. More recently, vibration-based tests have been also adopted to investigate the influence of the non-structural elements on the dynamic behaviour of buildings, with the advantage that this kind of tests can be performed both on laboratory specimens and on in-situ buildings. However, differently from classical infill tests (i.e., monotonic or cyclic lateral load tests, out of plane tests, etc.), a limited number of works is available in the literature discussing the outcomes and possible procedures for testing infilled structures with vibration-based methods aimed to investigate the role of the non-structural components. This paper presents a literature review of research works dealing with vibration-based tests performed on RC frame structures with the main target of discussing the influence of non-structural components on the dynamics of buildings. Tests on infilled buildings performed during the construction, in operating conditions and after the damage occurred due to earthquake shakings, are discussed. Furthermore, a comprehensive review about papers discussing vibration-based tests performed on infill masonry walls is presented and in-depth investigated with the aim of finding possible correlations between the dynamic test outcomes and the infill geometric and mechanical properties. From this study it comes out the need of further experimental data on both undamaged and damaged infills in order to get more reliable correlations.

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Section: Dynamic Tests On Infill Masonry Wallsmentioning

confidence: 99%

Vibration-Based Tests and Results for the Evaluation of Infill Masonry Walls Influence on the Dynamic Behaviour of Buildings: A Review

Nicoletti

Arezzo

Carbonari

et al. 2022

Arch Computat Methods Eng

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“…De Angelis et al had proposed the procedure for the structural identification of the out‐of‐plane behavior of infill masonry walls using a simple and cost‐effective innovative procedure based on an in situ experimental dynamic test and a consequent process. The procedure, composed of the in situ test and the updated numerical model, was implemented for a case study to confirm that it is effective in defining the mechanical characteristics of the masonry, the absence of collaboration between the two brick leaves of the infill wall, and the out‐of‐plane constraints along the perimeter.…”

Section: Related Workmentioning

confidence: 99%

Deep neural network‐based mechanical behavior analysis for various masonry infill walls with hybrid fiber mortar

Pitchaipillai¹,

Kumar²

2019

Structural Concrete

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Reinforced Concrete buildings with masonry infills are among the most common structural systems in many countries with regions of high seismicity. Masonry infill walls increase robustness of damaged RC structures. Although their mechanical contribution is usually neglected in structural analysis and design, they significantly affect the seismic response of RC frames. In this paper, we concentrate on the development of infill walls by using various structure design and brick types. An experimental investigation is carried out on two types of mortar mixes like conventional mortar and mortar used with hybrid fibers (polypropylene, sisal, kenaf, and aramid). Here, two types of masonry brick infills such as clay bricks and fly ash bricks are used. After construction of the specimens, each was marked properly according to their respective test of total 60 specimens, which have conventional and fiber‐mixed mortars. After 28 days curing, the masonry specimens attain their full strength and they became ready for the test. The material ratio followed to construct test specimens was according to the Indian standard. The shear test is conducted for masonry triplets and the flexural test is conducted for masonry wall panel structures. After that, the mechanical properties of this structure are validated with the help of the Restricted Boltzmann Machine (RBM)‐based Deep Neural Network (DNN). The performance of the proposed modeling is evaluated by comparing with those of the existing techniques.

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“…[25,27,29]). An assessment of the structural performance is undertaken, usually along with a damage assessment applying non-destructive techniques such as ambient vibration testing [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading

Kouris,

Triantafyllou,

Bournas

et al. 2023

Buildings

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The effectiveness of textile-reinforced mortar (TRM) strengthening of masonry walls largely depends on the bond between the constituent materials. Finite element analysis (FEA) can provide valuable insights on the effect of the parameters affecting the bond; however, detailed FEA is computationally intensive. To alleviate this, we develop novel empirical equations to estimate effective textile fibre properties, thus implicitly accounting for yarn and mortar debonding. As a result, 3D finite element simulations of strengthened wall specimens are simplified and accelerated. The proposed scheme is calibrated using load–displacement paths derived from experimental data, and the simulated failure modes are compared against the experimental ones demonstrating perfect agreement. A parametric analysis is conducted, exploring the impact of the mechanical ratio of TRM reinforcement and the axial wall load on the effectiveness of TRM strengthening. We demonstrate that low values of mechanical reinforcement, corresponding to natural fibres, give rise to an 8-fold increase in the capacity of unreinforced walls. The findings draw conclusions about the efficacy of TRM strengthening in masonry structures, and provide valuable insights for optimising TRM reinforcement, considering different fibre materials and axial loads in masonry structures.

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Out-of-plane structural identification of a masonry infill wall inside beam-column RC frames

Cited by 30 publications

References 23 publications

Vibration-Based Tests and Results for the Evaluation of Infill Masonry Walls Influence on the Dynamic Behaviour of Buildings: A Review

Vibration-Based Tests and Results for the Evaluation of Infill Masonry Walls Influence on the Dynamic Behaviour of Buildings: A Review

Deep neural network‐based mechanical behavior analysis for various masonry infill walls with hybrid fiber mortar

Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading

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