Experimental study on scale effects in clay brick masonry prisms and wall panels investigating compression and shear related properties

Knox, Charlotte; Dizhur, Dmytro; Ingham, Jason

doi:10.1016/j.conbuildmat.2017.12.149

Cited by 42 publications

(16 citation statements)

References 12 publications

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“…The approach followed in this research, which combines experimental results from laboratory controlled materials and real historical members spanning different levels of strength, allows obtaining a regression with a satisfactory coefficient of determination r² equal to 0.975. The increase of the compressive strength with the reduction of the specimen's size is consistent with the trends obtained in previous experimental and analytical studies on prismatic masonry samples [11,32,33].…”

Section: Size Effect On the Compressive Strength And Young's Modulus Of Cylindrical Specimenssupporting

confidence: 91%

Experimental analysis of the size effect on the compressive behaviour of cylindrical samples core-drilled from existing brick masonry

Pelà

Roca

Cabané

2019

Construction and Building Materials

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This paper presents the results of an experimental programme about the evaluation of the size effect on the compressive behaviour of cylindrical samples of existing masonry. The study focuses on the in-situ coring and experimental testing of core specimens with 150 mm and 90 mm diameter. The 150 mm cylinder, recurrent in minor destructive evaluation of the compressive strength of existing masonry, includes four brick pieces, two mortar beds and one head joint. The 90 mm specimen includes one mortar bed and two segments of brick, and inflicts less damage on the inspected structural member due to its lower invasivity. The experimental research investigates the size effect on four different types of clay brick masonry. The first type was built in the laboratory using historicallike materials. The other three types of masonry belong to structural walls of existing historical buildings. The combination of experimental results from laboratory controlled materials and existing historical members shows that the size of the cylindrical specimen has regular effect on the compressive strength and the Young's modulus. The consistent relationship found between the compressive strengths of the 150 mm and 90 mm core samples allows the use of the latter specimen for a more respectful inspection of existing structural masonry.

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Section: Size Effect On the Compressive Strength And Young's Modulus Of Cylindrical Specimenssupporting

confidence: 91%

Experimental analysis of the size effect on the compressive behaviour of cylindrical samples core-drilled from existing brick masonry

Pelà

Roca

Cabané

2019

Construction and Building Materials

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“…However, there were a few studies on the size effect of the model or structure. Knox et al established the laboratory test models of masonry structures with two scales, and they found that the model size had no influence on the compressive stiffness of masonry, while the diagonal shear strength and shear modulus had significant influences [14].…”

Section: State Of the Artmentioning

confidence: 99%

Size Effect Analysis of Scale Test Model for High-speed Railway Foundation under Dynamic Loading Condition

Wang¹,

Kunpeng

Zou

et al. 2021

Teh. vjesn.

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To determine the energy attenuation and energy reflection coefficients in layered foundation is the key factor to reveal the dynamic response characteristics of the high-speed railway foundation. Based on the foundation test model under the dynamic loading of the high-speed railway, the energy attenuation and energy reflection coefficients were introduced and the attenuation formulas of the vibration acceleration in the layered foundation were deduced. Five scale models of 1:1, 1:2, 1:5, 1:10 and 1:20 are established respectively by using Abaqus technique. The energy attenuation mechanism and interfacial energy reflection characteristics in the layered foundation were analyzed. Results show that it is appropriate to use vibration acceleration to characterize the propagation rule of the energy attenuation in the layered foundation. The size effect equations of the energy attenuation and energy reflection coefficients in the layered foundation are deduced and the size effect of the energy attenuation is revealed. Based on the nonlinear relationships among the energy attenuation coefficient, the model scale, the loading amplitude and the vibration frequency, the energy attenuation equation of the scale test model is constructed. The reliability of the theoretical and simulation results is verified by the scale test model. The conclusions obtained in this study can provide a reference for a similar engineering practice.

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“…An example of the loading scheme of the test is represented in Figure 3. Today a wide knowledge already exists, and a lot of applications were made (Almeida et al 2015;Borri et al 2011;Brignola et al 2008;Corradi and Borri 2018;Knox et al 2018;Milosevic et al 2013), permitting a good reliability of structural assessment. Even if international technical documents exist, such as RILEM (TC 76 LUM, 1976), ASTM (E519-E519M, 2015), interpretation of the test results and definition of mechanical parameters, is not so easy (Calderini et al 2010).…”

Section: Standard Testmentioning

confidence: 99%

The Effect of Transversal Connection in the in-Plane Response of Double-Leaf Brick Masonry Walls

Scandolo

Podestà

2021

Preprint

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The evaluation of structural safety derives from the knowledge of material properties. In case of existent masonry building, the definition of reliable mechanical parameters could be a very difficult task to be achieved. For this reason, an estimation of these values is useful, for example it is the first phase of the knowledge process, for simplified mechanical model or when NTD test is the only possibility.The transversal connection in masonry panels is a technological detail that affects the static and seismic behavior and could significantly increase the strength of the element.In this paper the effect of transversal connection in double-leaf brickwork masonry panels is evaluated by diagonal compression tests. To achieve this goal, a new set-up was designed to load each leaf independently.The results have shown an increment of about 20% in strength if transversal connection is present. If the leaves have very different mechanical parameters, the tests highlight an unexpected behavior.

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Experimental study on scale effects in clay brick masonry prisms and wall panels investigating compression and shear related properties

Cited by 42 publications

References 12 publications

Experimental analysis of the size effect on the compressive behaviour of cylindrical samples core-drilled from existing brick masonry

Experimental analysis of the size effect on the compressive behaviour of cylindrical samples core-drilled from existing brick masonry

Size Effect Analysis of Scale Test Model for High-speed Railway Foundation under Dynamic Loading Condition

The Effect of Transversal Connection in the in-Plane Response of Double-Leaf Brick Masonry Walls

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