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AAC WORLDWIDE %u2022 3.2025 APPLICATION & CONSTRUCTION 77The experimental shear strength (VT) of CW1%u20131.23 was greater than that of the CW1%u20132.29 (Fig. 6). This was associated with the smaller aspect ratio (H/L) of the individual walls of CW1%u20131.23 compared with those of CW1%u20132.29. For a constant wall height, as the wall length increases, the wall aspect ratio decreases. Similarly, the experimental shear strength (VT) of CW2%u20131.23 was greater than that of the CW2%u20132.29 by the reasons describe before. The Vm/VT ratios observed for CW1%u20131.23 and CW1-2.29 were equal to 1.63 and 1.30, respectively. Similarly, the Vm/VT ratios observed for CW2%u20131.23 and CW2-2.29 were equal to 1.86 and 1.45, respectively. The Vm/VT ratios represent the shear strength of coupled walls after the first diagonal cracking of any individual AAC wall.Final remarksThe cracking pattern of the one- and two story coupled AAC walls was similar, respectively. This cracking pattern was mainly characterized by the formation of vertical flexural cracks at the ends of coupling beams, horizontal flexural cracks along the height of vertical confining elements, and diagonal shear cracks on the AAC wall panels. The final cracking pattern of individual AAC confined walls was the traditional %u201cX%u201d type cracking pattern. Failure of coupled walls was associated with propagation of diagonal cracks into the ends of vertical confining elements of AAC confined walls.The shear strength of one- and two-story coupled AAC walls increased as the wall length of individual walls increased. The Vm/VT ratios observed for CW1%u20131.23 and CW1-2.29 were equal to 1.63 and 1.30, respectively. Similarly, the Vm/VT ratios observed for CW2%u20131.23 and CW2-2.29 were equal to 1.86 and 1.45, respectively. The Vm/VT ratios represent the shear strength of coupled walls after the first cracking of any individual AAC wall.AcknowledgementsAAC blocks and thin bed mortar were provided by Aircrete Mexico. %u25cfReferenceVarela-Rivera, J., J. Cacep-Rodr%u00edguez, L. Fern%u00e1ndez-Baqueiro, and J. Moreno-Herrera. 2025. %u201cShear Strength of Coupled Autoclaved Aerated Concrete Confined Masonry Walls%u201d. ASCE J. Struct. Eng., 151%u00a0(3). https://doi.org/10.1061/JSENDH.STENG-13764CARLFORS BRUK AB, SINCE 1898ALUMINIUM PASTE AND POWDER FOR AAC - IT ALL STARTED IN SWEDEN 1924Production | AAC Laboratory | Onsite testing | Final AAC-productionCarlfors Bruk AB %u2022 Box 44, SE-561 21 Huskvarna, SwedenPhone +46 36 38 95 00 %u2022 E-mail: cb@carlfors.se %u2022 www.carlfors.com