Study of Autoclaved Aerated Concrete Masonry Walls with Horizontal Reinforcement under Compression and Shear

2020

Mauerwerk

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AufsAtzStichworte autoklavierter Porenbeton; Kalksandstein; Brüstungsbereich des Mauerwerks; Verformungen des Mauerwerks Stressstrain analysis in the window zone area of fullscale wall models made of aac and calcium silicate units This article presents results of tests on full-scale wall models with two window openings. Tested walls were made of autoclaved aerated concrete (AAC) units and calcium silicate (C-S) units. They were erected on thin unfilled perpend joints. This article strictly corresponds to previous tests performed in the spandrel area. The aim of the research was to verify results obtained for smaller models. Stress-strain analysis of the spandrel area in full-scale models was performed and results were compared with results obtained for smaller models. According to the analysis of the stress-strain graphs, it was found that the horizontal stress in the spandrel area was ca. 0.2 N/mm 2 . The software based on the finite element method was used to perform calculations for tested walls. Results from laboratory tests and numerical simulations were analysed to determine the level of stress and strain in tested walls.

Section: Analyse Von Spannungen Und Verformungen Im Brüstungsbereich unclassified

Analyse von Spannungen und Verformungen im Brüstungsbereich von Wandmodellen aus Porenbeton und Kalksandstein

2020

Mauerwerk

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“…Modulus of elasticity was E = 2040 N/mm 2 and 2447 N/mm 2 , and Poisson's ratio was γ = 0.18. The method of basic material tests and detailed results were described in the papers .…”

Section: Research Modelsmentioning

confidence: 99%

Effect of filling joints on resistance of walls under vertical loading

Rybarczyk

2018

ce papers

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The paper describes the results of testing autoclaved aerated concert (AAC) walls on a natural scale. Walls were made of 18-cm-wide blocks and thin-layer joints. Walls were tested with filled and unfilled perpend (vertical) joints. The vertical load was applied by a reinforced concrete rim beam. The load-bearing capacity and deformability of walls were analyzed. K E Y W O R D SAAC masonry, compression tests, tests on a natural scale, the effect of joint filling

“…Standard tests of masonry units, mortar, reinforcement and masonry were performed; only the most important results are shown below. A description of the material tests and the detailed results can be found in the papers [10], [11].…”

Section: Masonry Units and Mortar Used In The Testsmentioning

confidence: 99%

Limitation of cracking in AAC masonry under the window zone

2017

Mauerwerk

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The article describes the results of tests on the impact of reinforcement on the appearance of cracks and on the manner of damage to masonry under the window zone. Masonry made of Autoclaved Aerated Concrete units with thin layer mortar was tested. Eight unreinforced test specimens (two series) and four series of test specimens (12 specimens) with reinforcement in the bed joints were subject to testing. Two types of reinforcement were used in the tests. It is demonstrated that the reinforcement has a significant impact on the level of cracking stress and propagation of cracks. It was found that when a pillar is correctly designed, cracks should not occur in the masonry under the window zone.