Influence of reinforced concrete confining on the load‐bearing capacity of the AAC walls

Abstract

The paper describes the results of testing autoclaved aerated concert walls on a natural scale.Walls were made of 18 cm wide blocks and thin layer joints. Tests on confined and unconfined walls with filled and unfilled perpend joints were made. The load-bearing capacity and deformability of walls were analyzed. K E Y W O R D S AAC masonry, compression tests, confined masonry, tests on a natural scale 1 GENERAL According to Eurocode 6 [1], confined masonry is masonry provided with reinforced concrete or reinforced masonry confining elements in the vertical and horizontal direction. Many papers [2-6] emphasize differences between confined masonry and masonry used for infill of the framed structure, and present numerous advantages of confined masonry. These papers focus mainly on the impact of confinement during periodic loading. However, Eurocode [6] only refers to masonry under static loading, and a new draft of this standard also includes

Investigation of the influence of bed joint steel reinforcement on the load‐bearing capacity and deformability of walls made of AAC (subjected to vertical compression). Part 2 test of the wall connection zone

“…Steel was protected with galvanized anti‐corrosion coat with the coating reference R20 in accordance with the standard EN 845‐3 [20]. The detailed description of the models is in the paper [19].…”

“…Loading scheme of the models was similar as described by Drobiec and Mazur [19], performed with actuators installed in the frames anchored in the strong floor, the tendon system and the piston actuators. A view and geometry of an exemplary model before testing are shown in Figure 2.…”

“…The loading force was measured during the tests using dynamometers installed in tendons and below the actuator fixed to the frame. Also displacements over the same reference frames as in the test [19] were measured using linear variable displacement transducers. Apart from measuring displacement with the linear variable displacement transducers, also non‐contact optical measurements were taken.…”

“…The similar situation was observed in other tested models. Thus, the tests on wall connections covered only the edge fragment of the model which was not destroyed during the first‐stage tests (the near‐opening zone—the tests described by Drobiec and Mazur [19]).…”

Analysis of confined masonry with Strut and Tie models

“…The method of conducting tests and detailed results were described in the papers [14,15]. They also present the method of destroying the tested wall models.…”