Behaviour of unreinforced and reinforced masonry wallettes made of ACC blocks subjected to diagonal compresion

Marta Kałuża; Jan Kubica

Behaviour of unreinforced and reinforced masonry wallettes made of ACC blocks subjected to diagonal compresion

Publication date: 26.03.2014

Technical Transactions, 2013, Civil Engeneering Issue 1-B (6) 2013, pp. 79 - 94

https://doi.org/10.4467/2353737XCT.14.006.1924

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Titles

Behaviour of unreinforced and reinforced masonry wallettes made of ACC blocks subjected to diagonal compresion

Abstract

Od ponad 10 lat elementy wykonane z autoklawizowanego betonu komórkowego są jednym z najbardziej popularnych materiałów stosowanych do wznoszenia budynków mieszkalnych zarówno w Polsce, jak i Europie. Zalecana technologia wykonywania konstrukcji z takich materiałów wymaga stosowania cienkich spoin wspornych i niewypełnionych spoin czołowych. Niestety konstrukcje wznoszone w tej technologii są podatne na zarysowania. Jedną z metod ograniczania zarysowań jest wprowadzenie do spoin wspornych prefabrykowanego zbrojenia. Głównym celem prezentowanych badań jest analiza zachowania się muru niezbrojonego oraz zbrojonego zbrojeniem typu MURFOR®. Badane elementy poddano ukośnemu ściskaniu. Przebadano trzy grupy elementów próbnych, różniące się sposobem otulenia zbrojenia zaprawą. W trakcie analizy zwrócono szczególną uwagę na główny technologiczny problem, dotyczący zapewnienia prawidłowej przyczepności zbrojenia do elementu murowego.

For more than 10 years, masonry units made of ACC turned out to be one of the most popular materials used in the construction of residential buildings in Poland and other European countries. The recommended technology for erecting such structures requires using thin bed joints and non-filled head joints. Unfortunately, masonry buildings erected using this technique are prone to damage and cracks. One of the methods to guarantee improvement of cracking resistance of this type of structure is using a special prefabricated reinforcement to be placed in bed joints. The main objective of the investigation presented here was to analyse the behaviour of unreinforced and reinforced, with prefabricated truss-type called MURFOR®, masonry walletts. All specimens were subjected to diagonal compression. Three groups of specimens were tested, each using a different mortar coating Testing was especially focused on the main technological problem of the proper adhesion between mortar and the reinforcement surface.

Keywords

Behaviour of unreinforced and reinforced masonry wallettes made of ACC blocks subjected to diagonal compresion

ACC blocks, diagonal compression, reinforced masonry, shear strength

References

EN 845-3:2000. Specification for ancillary components for masonry – Part 3: Bed joint reinforcement of steel meshwork, CEN, 2000.

Nolph S.M., In-plane shear performance of partially grouted masonry shear walls, Master thesis, Washington State University, 2010.

Kubica J., Kałuża M., Diagonally compressed AAC Block’s masonry – effectiveness of strengthening using CRFP and GRFP laminates, Proceedings 8th International Masonry Conference, Masonry (11), Ed. by W. Jäger, B. Haseltine & A. Fried, Dresden 2010, 419-428.

EN 1996-1-1:2005 EUROCODE 6, Design of Masonry Structures – Part 1-1: Common Rules for Reinforced and Unreinforced Masonry Structures, CEN, 2005.

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Tomažević M., Lutman M., Design of reinforced masonry walls for seismic actions, Proceedings 8th International Brick Masonry Conference, Vol. II, Dublin 1988.

Kubica J. Kałuża M., Comparative tests of diagonally compressed unreinforced and bed joint reinforced masonry made of acc block, Proceedings 7th International Conference AMCM’2011, Kraków, 2011.

RILEM LUMB 6, Diagonal Tensile strength. Tests of Small Wall Specimens, TC 73 – LUM, 1991.

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Information

Information: Technical Transactions, 2013, Civil Engeneering Issue 1-B (6) 2013, pp. 79 - 94

DOI: https://doi.org/10.4467/2353737XCT.14.006.1924

Article type: Original article

Titles:

Polish:

Behaviour of unreinforced and reinforced masonry wallettes made of ACC blocks subjected to diagonal compresion

English:

Behaviour of unreinforced and reinforced masonry wallettes made of ACC blocks subjected to diagonal compresion

Authors

Marta Kałuża

Jan Kubica

Department of Structural Engineering, Faculty of Civil Engineering, Silesian University of Technology

Published at: 26.03.2014

Article status: Open

Licence: None

Percentage share of authors:

Marta Kałuża (Author) - 50%

Jan Kubica (Author) - 50%

Article corrections:

Publication languages:

English

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Number of downloads: 3070

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