Evaluation of force-based and displacement-based out-of-plane seismic assessment methods for unreinforced masonry walls through refined model simulations

2018 ◽  
Vol 48 (4) ◽  
pp. 454-475 ◽  
Author(s):  
Michele Godio ◽  
Katrin Beyer
Keyword(s):  
Unreinforced Masonry ◽  
Seismic Assessment ◽  
Assessment Methods ◽  
Masonry Walls ◽  
Refined Model ◽  
Model Simulations ◽  
Out Of Plane ◽  
Displacement Based

Displacement-based seismic analysis for out-of-plane bending of unreinforced masonry walls

2002 ◽  
Vol 31 (4) ◽  
pp. 833-850 ◽  
Author(s):  
K. Doherty ◽  
M. C. Griffith ◽  
N. Lam ◽  
J. Wilson
Keyword(s):  
Seismic Analysis ◽  
Unreinforced Masonry ◽  
Masonry Walls ◽  
Out Of Plane ◽  
Plane Bending ◽  
Displacement Based

Out-of-plane strength reduction of unreinforced masonry walls because of in-plane damages

2015 ◽  
Vol 44 (13) ◽  
pp. 2157-2176 ◽  
Author(s):  
Kiarash M. Dolatshahi ◽  
Mohammad Yekrangnia
Keyword(s):  
Unreinforced Masonry ◽  
Strength Reduction ◽  
Masonry Walls ◽  
Out Of Plane

Effect of in-plane damage on out-of-plane strength of unreinforced masonry walls

2013 ◽  
Vol 57 ◽  
pp. 1-11 ◽  
Author(s):  
Pawan Agnihotri ◽  
Vaibhav Singhal ◽  
Durgesh C. Rai
Keyword(s):  
Unreinforced Masonry ◽  
Masonry Walls ◽  
Out Of Plane

Out-of-plane shaketable testing of unreinforced masonry walls in two-way bending

2017 ◽  
Vol 16 (7) ◽  
pp. 2839-2876 ◽  
Author(s):  
Jaroslav Vaculik ◽  
Michael C. Griffith
Keyword(s):  
Unreinforced Masonry ◽  
Masonry Walls ◽  
Out Of Plane

scholarly journals Out-of-plane Strength of Existing Two-way Spanning Solid and Cavity Unreinforced Masonry Walls

Structures ◽  
2018 ◽  
Vol 13 ◽  
pp. 88-101 ◽  
Author(s):  
H. Derakhshan ◽  
W. Lucas ◽  
P. Visintin ◽  
M.C. Griffith
Keyword(s):  
Unreinforced Masonry ◽  
Masonry Walls ◽  
Out Of Plane

scholarly journals Capacity of unreinforced masonry walls in out-of-plane two-way bending: A review of analytical formulations

Structures ◽  
2020 ◽  
Vol 28 ◽  
pp. 2431-2447
Author(s):  
Lang-Zi Chang ◽  
Francesco Messali ◽  
Rita Esposito
Keyword(s):  
Unreinforced Masonry ◽  
Masonry Walls ◽  
Out Of Plane

Enhancing the out-of-plane behaviour of unreinforced masonry walls under impact loading through the use of partially bonded layers of engineered cementitious composite

2019 ◽  
Vol 11 (2) ◽  
pp. 209-234
Author(s):  
Saeed Pourfalah ◽  
Demetrios M Cotsovos
Keyword(s):  
Impact Loading ◽  
Composite Layer ◽  
Unreinforced Masonry ◽  
Masonry Walls ◽  
Full Potential ◽  
Cementitious Composite ◽  
Premature Failure ◽  
Engineered Cementitious Composite ◽  
Composite Layers ◽  
Out Of Plane

Published experimental work reveals that the out-of-plane behaviour of unreinforced masonry walls under impact loading can be significantly enhanced through the use of engineered cementitious composite layers fully bonded to the surface of the masonry. The disadvantage of this method is associated with the localised cracking exhibited by the engineered cementitious composite layer close to the joints forming between bricks. This cracking is associated with the bond developing between the masonry and the engineered cementitious composite layer and does not allow the latter layer to achieve its full potential, thus resulting in its premature failure. In an attempt to address this problem, a series of drop-weight tests were carried on masonry prismatic specimens strengthened with a layer of engineered cementitious composite partially bonded to the surface of the masonry acting in tension. The latter prismatic specimens consist of a stack of bricks connected with mortar joints. The specimens are considered to provide a simplistic representation of a vertical strip of a masonry wall subjected to out-of-plane actions associated with impact or blast loading. Analysis of the test data reveals that under impact loading, the specimens retrofitted with partially bonded engineered cementitious composite layers can exhibit a more ductile performance compared to that exhibited by the same specimens when strengthened with fully bonded layers of engineered cementitious composite. This is attributed to the fact that along its unbonded length, the engineered cementitious composite layer is subjected to purely uniaxial tension (free from any interaction with the surface of the masonry), allowing for the development of multiple uniformly distributed fine cracks.

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