Klaus Medeiros, Jianyixian Zhu, Rodolfo Palhares, Guilherme Parsekian, and Nigel Shrive
i Assistant Professor, Universidade Federal Rural do Semi-Árido, Angicos, Brazil, klaus.medeiros@ufersa.edu.br
ii PhD Candidate, University of Calgary, Calgary, Canada, jianyixian.zhu@ucalgary.ca
iii Assistant Professor, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil, palhares.rodolfo@ufjf.br
iv Professor, Universidade Federal de São Carlos, São Carlos, Brazil, parsekian@ufscar.br
v Professor Emeritus, University of Calgary, Calgary, Canada, ngshrive@ucalgary.ca
ABSTRACT
The paper aims to demonstrate the practical application of two new equations to predict the diagonal shear load capacity (DSLC) of partially grouted masonry walls (PGMW). The first equation, validated through numerical and experimental analysis, has shown significant improvements in predicting the DSLC for walls with different geometric configurations, considering factors such as masonry material properties, applied axial load, vertical and horizontal reinforcement, and vertical and horizontal grouting. The second equation, validated through existing experimental testing of small-scale material testing and full-scale wall testing, considers factors of only the masonry, the axial load, and the horizontal reinforcement: the masonry contribution is based on experimental testing for cohesion and the coefficient of friction rather than creating a function of the compressive strength. This study focuses on applying the equations to various practical scenarios and exploring their limitations and capabilities. Examples of calculations are provided, examining the impact of wall aspect ratios, the minimum and maximum allowable lengths of ungrouted panels between grouted cores, and the necessary conditions for a wall to be classified as partially grouted. These examples seek to illustrate the equations’ flexibility and accuracy in predicting wall shear behavior under different design conditions. This practical approach will give engineers a clearer understanding of the equations’ real-world applicability and provide guidelines for their use in structural design. The study emphasizes the equations’ potential to improve knowledge of the behaviour of masonry subject to shear and to replace or complement existing code provisions, improving the safety and efficiency of masonry design. Further refinement may be in order to provide a consistently accurate method of predicting the DSLC of PGMW.
KEYWORDS: Masonry, Shear wall, Partially grouted, Diagonal shear load capacity, Aspect ratio, Grouting limits.
112-Medeiros.pdf
