Review of Recent Progress on the Effects of High Temperatures on the Mechanical Behavior of Masonry Prisms

Nalon, Gustavo Henrique; Ribeiro, José Carlos Lopes; Pedroti, Leonardo Gonçalves; Silva, Roberto Márcio da; Araújo, Eduardo Nery Duarte de; Santos, Rodrigo Felipe; Lima, Gustavo Emílio Soares de

doi:10.3390/infrastructures8070112

Cited by 3 publications

(2 citation statements)

References 28 publications

(85 reference statements)

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“…Moreover, these types of samples are easier to construct and test. Fire tests of masonry prisms may provide interesting information about the masonry compressive behavior, in addition to the economic benefits associated with the small size of these types of specimens [5].…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of Concrete Blocks and Stack-Bond Prisms under Different Boundary Conditions

Nalon,

Ribeiro,

Pedroti

et al. 2024

Construction Materials

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Fire is a significant threat to human lives and the integrity of buildings. To better understand the complex behavior of masonry exposed to high temperatures, thermal analyses were carried out to evaluate the temperature distribution in concrete blocks and stack-bond prisms exposed to high temperature levels. The effects of distinct specimen boundary conditions (restrict or easy access to air circulation inside the voids of the block and prisms) on the thermal response of the masonry materials were investigated. Thersys 2.0 software was used to implement three-dimensional thermal analysis of distinct finite element models. Four-node tetrahedral elements and full integration were used in all models. The modeling approach was validated by experimental data obtained from thermocouples embedded into masonry components. The results indicated that the boundary conditions significantly affected the time required for homogenization of temperature in blocks and prisms. Easy access to air circulation inside the voids of the prisms provided a faster temperature homogenization. In this scenario, the prism reached temperature ranges of (300 ± 0.5% × 300) °C and (600 ± 0.5% × 600) °C after exposure times of 2 h and 2 h 10 min, respectively. When access to air circulation within the voids of the prisms was limited, the same temperature ranges were achieved after exposure times of 5 h 20 min and 6 h, respectively.

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Section: Introductionmentioning

confidence: 99%

Thermal Analysis of Concrete Blocks and Stack-Bond Prisms under Different Boundary Conditions

Nalon,

Ribeiro,

Pedroti

et al. 2024

Construction Materials

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“…Thus, masonry walls are relatively weak in tension. As a result, the walls are usually designed and expected to resist only compression loads [5][6][7][8]. Over the last several decades, research studies have been dedicated to investigating the structural behaviour of masonry walls and improving design standards [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Performance of Unreinforced Masonry Walls in Compression: A Review of Design Provisions, Experimental Research, and Future Needs

Blash,

Bakar,

Udi

et al. 2023

Applied Sciences

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Unreinforced masonry (URM) is a construction of brick or concrete block unit that is joined together using mortar, without steel reinforcement. Because of the heterogeneous nature and difference in mechanical properties of the masonry elements, analyzing and capturing the structural behaviour of URM walls under various loading conditions is therefore complex. In recent decades, research efforts have been focused on addressing and understanding the compressive behaviour of URM walls from the experimental viewpoint. However, from the existing experimental literature, there is a significant degree of variation in the mechanical and geometric properties of URM walls, especially the comprehensive comparison of apparently equivalent test parameters, which has yet to be examined. It is therefore necessary to highlight and critically examine major results derived from the experimental literature to better understand the performance of URM walls under compressive loads. This review paper presents the assessment performance with regard to axial compressive tests on URM walls, along with comprehensive comparisons among the experimental literature findings on the basis of masonry construction methods and various influencing parameters. Emphasis in the literature has been placed chiefly on the masonry elements, design provisions, axial load, slenderness ratio, openings, and stress–strain response. Based on observations from the study, experimental development trends have been highlighted to identify and outline potential directions for future studies.

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Behavior of self-sensing masonry structures exposed to high temperatures and rehydration

Nalon,

Ribeiro,

Pedroti

et al. 2024

Structures

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Review of Recent Progress on the Effects of High Temperatures on the Mechanical Behavior of Masonry Prisms

Cited by 3 publications

References 28 publications

Thermal Analysis of Concrete Blocks and Stack-Bond Prisms under Different Boundary Conditions

Thermal Analysis of Concrete Blocks and Stack-Bond Prisms under Different Boundary Conditions

Performance of Unreinforced Masonry Walls in Compression: A Review of Design Provisions, Experimental Research, and Future Needs

Behavior of self-sensing masonry structures exposed to high temperatures and rehydration

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