Deformability of the masonry subjected to shearing due to vertical displacements
Adam Piekarczyk
Adam.Piekarczyk@polsl.plDepartment of Building Structures; Faculty of Civil Engineering; Silesian University of Technology; 5 Akademicka Street, 44-100 Gliwice, Poland (Poland)
https://orcid.org/0000-0002-5790-9560
Abstract
The paper presents the results of tests of masonry specimens subjected to vertical displacement, with limited deformations in a direction parallel to the masonry bed joints (horizontally) and additionally compressed in the direction perpendicular to the bed joints (vertically). Specimens in the form of fragments of masonry walls were made of solid ceramic brick and AAC blocks. Studies have shown that the nature of the relationship between wall deformation angles and shear stresses caused by vertical displacements depends on the values of accompanying compressive stresses normal to the plane of the masonry bed joints. Compressive stresses have a positive effect on the load-bearing capacity and crack resistance of this type of masonry walls and the angles of deformation occurring at the moment of cracking. The dependence of the transverse stiffness modulus on the value of shear stresses is strongly non-linear, but with increasing shear stresses, it stabilises at a certain level independent of the values of compressive stresses associated with shear.
Keywords:
vertical shear, vertical wall displacement, transverse stiffness, shear deformation angleReferences
Piekarczyk A., “Shear stiffness of solid clay brick wallets sheared perpendicularly to the masonry bed joints”, Procedia Engineering, vol. 161, 2016, pp. 1064-1069. https://doi.org/10.1016/j.proeng.2016.08.849
DOI: https://doi.org/10.1016/j.proeng.2016.08.849
Google Scholar
Piekarczyk A., “Uszkodzenia i naprawy niekonstrukcyjnych elementów budynków”, in XXX Jubileuszowe Ogólnopolskie Warsztaty Pracy Projektanta Konstrukcji. Polski Związek Inżynierów i Techników Budownictwa. Oddział w Bielsku-Białej, vol. 3, Szczyrk, 2015, pp. 233-290.
Google Scholar
Piekarczyk A., “Shear modulus and non-dilatational strains of unreinforced and reinforced clay brick masonry”, in 8th International Masonry Conference, Dresden, 2010, pp. 315-324.
Google Scholar
Drobiec Ł., “Przyczyny uszkodzeń murów”, in XXII Ogólnopolska Konferencja Warsztat Pracy Projektanta Konstrukcji. Polski Związek Inżynierów i Techników Budownictwa. Oddział w Bielsku-Białej, vol. 1, Szczyrk, 2007.
Google Scholar
Kubica J., Niezbrojone ściany murowane poddane odkształceniom postaciowym wywołanym nierównomiernymi pionowymi przemieszczeniami podłoża. Wydawnictwo Politechniki Śląskiej, Gliwice 2003.
Google Scholar
Małyszko L., Orłowicz R., Konstrukcje murowe. Zarysowania i naprawy. Wydawnictwo Uniwersytetu Warmińsko-Mazurskiego w Olsztynie, Olsztyn 2000.
Google Scholar
Masłowski E., Spiżewska D., Wzmacnianie konstrukcji budowlanych. Wydawnictwo „Arkady”, Warszawa 2002.
Google Scholar
Rudziński L., Konstrukcje murowe. Remonty i wzmocnienia. Wydawnictwo Politechniki Świętokrzyskiej, Kielce 2006.
Google Scholar
Stawski B., Konstrukcje murowe. Naprawy i wzmocnienia. Polcen Sp. z o.o., Warszawa 2014.
Google Scholar
Piekarczyk A., “Comparative investigations of unreinforced and reinforced masonry walls subjected to vertical shearing”, in II International Scientific Conference – Quality and Reliability in Building Industry, Levoča, 2001, pp. 424-429.
Google Scholar
Piekarczyk A., Kubica J., “Capacity and deformability of vertically sheared clay brick masonry with horizontal reinforcement”, in Proceedings of the British Masonry Society. Proceedings of the Sixth International Masonry Conference, Proceedings No. 9, London, 2002, pp. 386-391.
Google Scholar
Jasiński R., Piekarczyk A., “Cracking of clay brick masonry wallets sheared parallel and perpendicular to the bed joints – a trial of the problem description”, in III International Scientific Conference – Quality and Reliability in Building Industry, Levoča, 2003, pp. 244-250.
Google Scholar
Jasiński R., Piekarczyk A., “Próba opisu zjawiska cinania w kierunku równoległym i prostopadłym do spoin wspornych niezbrojonych murów ceglanych”, in XLIX Konferencja Naukowa Komitetu Inżynierii Lądowej i Wodnej PAN i Komitetu Nauki PZITB, Warszawa – Krynica, 2003, vol. 4, pp. 139-147.
Google Scholar
Kubica J., Piekarczyk A., “Tests of vertically sheared clay brick masonry walls with and without bed joint reinforcement”, in Proceedings of 13th IB2MaC, Amsterdam, 2004, pp. 191-200.
Google Scholar
Piekarczyk A., Nośność i odkształcalność zbrojonych ścian murowych poddanych ścinaniu w kierunku pionowym. Politechnika Śląska [praca doktorska], Gliwice, 2005.
Google Scholar
Kubica J., “Reinforced masonry shear walls – application, design and research problems”, in Analytical models and new concepts in concrete and masonry structures AMCM'2008, 6th International Conference, Łódź, 2008, pp. 43-57.
Google Scholar
Kubica J., Piekarczyk A., Investigations of reinforced (with "Murfor" reinforcement situated in bed joints) masonry walls made of AAC blocks "Ytong" type subjected to vertical shearing. Chapter 4. Main investigations – masonry wallettes subjected to vertical shearing. Research report NB-227/RB-8/2008. Silesian University of Technology, Gliwice 2008.
Google Scholar
Kubica J., “In-plane sheared unreinforced masonry wallettes – proposition of failure criterion”, in Proceedings of 15th IB2MaC, Florianópolis, 2012, pp. 191-200.
Google Scholar
Drobiec Ł., Jasiński R., Piekarczyk A., Konstrukcje murowe według Eurokodu 6 i norm związanych. PWN, vol. 1, Warszawa, 2013.
Google Scholar
Kubica J., “Size and shape effect of test specimens on shear of clay brick and AAC block masonry – a comparative study” in 9th International Masonry Conference, Guimaraes, 2014, p. 192.
Google Scholar
Kubica J., “Unreinforced clay brick masonry wallettes sheared perpendicular or parallel to the bed joints – a comparative study”, in 16th International Brick and Block Masonry Conference. Trends, innovations and challenges. CRC Press-Taylor & Francis Group, Padova, 2016, pp. 1683-1690.
DOI: https://doi.org/10.1201/b21889-209
Google Scholar
Piekarczyk A., “The Influence of Compressive Stress on the Load-Bearing Capacity of Masonry Subjected to Vertical Displacements”, in 3rd World Multidisciplinary Civil Engineering –Architecture – Urban Planning Symposium, WMCAUS 2018, IOP Conference Series: Science and Engineering, vol. 471, Prague, 2019.
DOI: https://doi.org/10.1088/1757-899X/471/5/052017
Google Scholar
Lurati F., Graf H., Thürlimann B., Experimental determination of the strength parameters of concrete masonry, Report No 8401-2. Institute of Structural Engineering, Zürich 1990.
Google Scholar
Raijmakers T. M. J., Vermeltfoort A. J., Deformation controlled tests in masonry shear walls, Report B-92-1156. TNO-Bouw, Delft 1992.
Google Scholar
Tsui T. P., “A preliminary investigation of the vertical shear strength of brick masonry”, in
Google Scholar
th International Brick/Block Masonry Conference, Rome, 1982, pp. 33-44.
Google Scholar
PN-EN 772-1 Metody badań elementów murowych. Część 1: Określenie wytrzymałości na ściskanie.
Google Scholar
PN-EN 998-2 Wymagania dotyczące zapraw do murów. Część 2: Zaprawa murarska.
Google Scholar
PN-EN 1996-1-1 Eurokod 6. Projektowanie konstrukcji murowych. Część 1-1: Reguły ogólne dla zbrojonych i niezbrojonych konstrukcji murowych.
Google Scholar
Authors
Adam PiekarczykAdam.Piekarczyk@polsl.pl
Department of Building Structures; Faculty of Civil Engineering; Silesian University of Technology; 5 Akademicka Street, 44-100 Gliwice, Poland Poland
https://orcid.org/0000-0002-5790-9560
Statistics
Abstract views: 444PDF downloads: 588 PDF downloads: 80 PDF downloads: 59
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Budownictwo i Architektura supports the open science program. The journal enables Open Access to their publications. Everyone can view, download and forward articles, provided that the terms of the license are respected.
Publishing of articles is possible after submitting a signed statement on the transfer of a license to the Journal.