Share:


Analysis of behaviour of calcium silicate hollow blocks masonry subjected to the concentrated load

Abstract

Loading of masonry with concentrated load is a sufficiently common case of loading which occurs due to structures of various purposes and sizes which lean against masonry wall, column or partition wall. Reinforced concrete or metal beams, reinforced beams, wooden structures of roof or span are leaned against masonry structures most usually. Investigations show that masonry structures under concentrated load withstand higher loads than structures of which the whole surface area is compressed. In most cases traditional bricks’ masonry under concentrated load was investigated. Its head joints are filled with mortar.


This paper describes the experimental and numerical modeling results of investigation of calcium silicate hollow blocks masonry with thin layered mortar and unfilled head joints compressed by concentrated load. The more dangerous case when the edge of masonry unit (wall) is affected by concentrated load was chosen for analysis. Preliminary investigations have shown that the bed joints transmiss horizontal stresses. The stress distribution angle is close to 60°, i.e. close to stress distribution in masonry with filled head joints.


First published online 26 January 2021

Keyword : calcium silicate hollow blocks, concentrated load, compressive strength, numerical modeling

How to Cite
Zavalis, M. (2020). Analysis of behaviour of calcium silicate hollow blocks masonry subjected to the concentrated load. Engineering Structures and Technologies, 12(2), 39-45. https://doi.org/10.3846/est.2020.14041
Published in Issue
Dec 31, 2020
Abstract Views
133
PDF Downloads
74
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

References

Angelillo, M. (2014). Mechanics of masonry structures. In M. Angelillo, P. B. Lourenco, & G. Milani (Eds.), CISM International Centre for Mechanical Sciences book series (CISM, vol. 551). Springer. https://doi.org/10.1007/978-3-7091-1774-3

Atkočiūnas, J., & Nagevičius, J. (2004). Elastic theory basics. Technika (in Lithuanian).

Bigoni, D., & Noselli, G. (2010a). Localized stress percolation through dry masonry walls. Part I – Experiments. European Journal of Mechanics – A/Solids, 29(3), 291–298. https://doi.org/10.1016/j.euromechsol.2009.10.009

Bigoni, D., & Noselli, G. (2010b). Localized stress percolation through dry masonry walls. Part II – Modelling. European Journal of Mechanics – A/Solids, 29(3), 299–307. https://doi.org/10.1016/j.euromechsol.2009.10.013

Drobiec, Ł. (2017). FEM model of the masonry made of hollow calcium silicate units. Procedia Engineering, 193, 462–469. https://doi.org/10.1016/j.proeng.2017.06.238

Europen Commitee for Standartization. (2005). Eurocode 6: Design of masonry structures – Part 1-1: General rules for reinforced and unreinforced masonry structures (EN 1996-1-1:2005).

fib. CEB-FIP. (1998). CEB-FIP model code 1990. Switzerland.

Vermeltfoort, A. T. (2005). Brick-mortar interaction in masonry under compresion. Eindhoven University of Technology. Eindhoven University Press Facilities.

Jonaitis, B. (2005). Mokslo darbo mūro iš silikatinių blokų „silka“ (arko m) mechaninių savybių tyrimas ataskaita. Lietuvos valstybinis mokslo ir studijų fondas. Vilniaus Gedimino technikos universitetas (in Lithuanian).

Lourenco, P. B., Rots, J. G., & Blaauwendraad, J. (1995). Two approaches for the analyses of masonry structures: Micro and macro-modeling. HERON, 40(4), 313–340.

Lietuvos standartizacijos departamentas. (2004). Mūro skiedinio bandymo metodai. 11 dalis. Sukietėjusio skiedinio stiprio lenkiant ir gniuždant nustatymas (LST EN 1015-11:2004) (in Lithuanian).

Mohammed, M. S. (2010). Finite element analysis of unreinforced masonry walls. Al-Rafidain Engineering Journal, 18(4), 55–68. https://doi.org/10.33899/rengj.2010.31528

Onischick, L. I. (1939). Masonry construction in industrial and civil buildings. Mascow State publishing house of building literature (in Russian).

Page, A. W., & Hendry, A. W. (1988). Design rules for concentrated loads on masonry. The Structural Engineer, 66(17), 272–281.

Roca, P., Gonzalez, J. L., Onate, E., & Lourenco, P. B. (1998). Experimental and numerical issues in the modelling of the mechanical behaviour of masonry. Structural analysis of historical constructions II. CIMNE, Barcelona.

Senthivel, R., & Lourenco, P. B. (2009). Finite element modelling of deformation characteristics of historical stone masonry shear walls. Department of Civil Engineering, University of Minho, Guimarães, Portugal.

Symakezis, C. A., & Asteris, P. G. (1999, June 6–9). Design recommendations for masonry walls under concentrated loads [Conference presentation]. 8th North American Masonry Conference, Austin, Texas.

Manie, J. (Ed.). (2011). DIANA finite element analysis. User’s manual. Realease notes realeas 9.4.4. TNO DIANA BV. Netherlands.

Venckevičius, V. (2005). About the calculation of concrete elements subjected to local compression. Civil Engineering and Managment, 11(3), 243–248. https://doi.org/10.1080/13923730.2005.9636355

Wijffels, T. J., & Adan, O. C. G. (2004, July). Bond stenght in calcium silicate facing brick masonry. In 13th International Brick and Block Masonry Conference (pp. 1–12). Amsterdam.

Zavalis, R., Jonaitis, B., & Lourenco, B. P. (2018). Experimental investigation of the bed joint influence on mechanical properties of hollow calcium silicate block masonry. Materials and Structures, 51, 85. https://doi.org/10.1617/s11527-018-1215-y