Seismic performances of AAC masonry: a review of experimental and numerical approaches

Miccoli, Lorenzo

doi:10.1002/dama.201800023

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…The failure mode depends on interface cohesion and friction in correspondence of the bed joints. Although in the last years a number of studies were carried out on shear behavior of AAC [3, 4], the amount of published data on the initial shear strength of AAC with thin layer mortar (TLM) is still relatively limited. At the current status, most of the studies available in the scientific literature are indeed referred to clay brick masonry or to AAC masonry with thick joints [5].…”

Section: Introductionmentioning

confidence: 99%

Determination of the initial shear strength of AAC masonry with and without pre‐compression according to EN 1052‐3

Miccoli,

Ferretti,

Michelini

et al. 2023

ce papers

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Aim: In this paper, a comparative study on the initial shear strength of aerated autoclaved concrete (AAC) masonry is presented. Shear tests were carried out according to EN 1052–3 to characterize the shear‐bond behavior of masonry assemblages constructed with AAC blocks with different compressive strengths.Method: To assess the influence of the axial pre‐compression on shear strength, the two different testing procedures suggested in EN 1052–3 were followed and compared. The first procedure (called A) imposes three levels of axial pre‐compression, in the second procedure (called B) shear tests are carried out without axial pre‐compression.Results: For tests performed according to the procedure A, the dispersion of values of the shear strength increases as the pre‐compression level decreases. The so obtained mean values of the initial shear strength are close to the characteristic value suggested by Eurocode 6 (EN 1996–1–1). For tests performed according to the procedure B. often the mean value of the initial shear strength is higher than the value obtained for the procedure A. However, in this case most of the specimens were characterized by crushing or by a splitting failure in the units.Conclusions: According to the authors' opinion, the higher values of initial shear strength obtained with the procedure B can be justified in view of some criticisms probably caused by the rotation of the blocks in the test setup.

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Section: Introductionmentioning

confidence: 99%

Determination of the initial shear strength of AAC masonry with and without pre‐compression according to EN 1052‐3

Miccoli,

Ferretti,

Michelini

et al. 2023

ce papers

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Autoclaved aerated concrete masonry for energy efficient buildings: State of the art and future developments

Michelini,

Ferretti,

Miccoli

et al. 2023

Construction and Building Materials

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An experimental study on the effect of frame-to-wall connection type on the seismic behavior of steel frames infilled with autoclave-cured aerated concrete blocks

Asadzadeh

Mohammadi

Attari³

et al. 2019

Advances in Structural Engineering

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In this article, in order to find some reliable connection types for avoiding the infill failure, an experimental study is conducted on six half-scale single-story single-bay specimens, including one bare frame and five steel frames with autoclave-cured aerated concrete walls, each having different frame-to-wall connection types. Polyurethane adhesive was used in bed joints of the autoclave-cured aerated concrete walls as a mortar. The specimens were tested under displacement-controlled loading to examine their effect on the in-plane behavior of steel frames. The results suggested that V- and T-shaped connectors can be used as prequalified connectors between the wall and the frame. In specimens with these connectors, the interaction between infill and frame was ignorable and the infill remained intact up to life safety performance level (2.5% drift ratio). Furthermore, the application of these connectors resulted in a two-level performance of the infill whereby the frame stiffness degradation and strength deterioration after the drift ratio of 2.5% was compensated.

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Seismic performances of AAC masonry: a review of experimental and numerical approaches

Cited by 3 publications

References 15 publications

Determination of the initial shear strength of AAC masonry with and without pre‐compression according to EN 1052‐3

Determination of the initial shear strength of AAC masonry with and without pre‐compression according to EN 1052‐3

Autoclaved aerated concrete masonry for energy efficient buildings: State of the art and future developments

An experimental study on the effect of frame-to-wall connection type on the seismic behavior of steel frames infilled with autoclave-cured aerated concrete blocks

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