Field observations and interpretation of the structural performance of constructions after the 11 May 2011 Lorca earthquake

Romão, Xavier; Costa, Andreia; Paupério, Esmeralda; Rodrigues, Hugo; Vicente, Romeu

doi:10.1016/j.engfailanal.2013.01.040

Cited by 134 publications

(91 citation statements)

References 10 publications

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“…As a matter of fact, the out-of-plane collapse of unreinforced masonry walls tends to occur at lower intensities than those required to produce collapse or heavy damage for in-plane response. Such fact, well known in the earthquake engineering community, has been convincingly demonstrated in recent earthquakes damage surveys in Italy (Decanini et al 2004;Augenti and Parisi 2010;D'Ayala and Paganoni 2011), Spain (Romão et al 2013), Turkey (Bayraktar et al 2007a;Sayın et al 2013Sayın et al , 2014 or in Pakistan (Maqsood and Schwarz 2010). Figure 1 depicts some examples of damage on traditional unreinforced stone masonry buildings, recorded after the magnitude 6.3 earthquake that struck L'Aquila city centre (central Italy) on the 6th of April 2009.…”

Section: Seismic Performance Of Stone Masonry Structuresmentioning

confidence: 96%

Experimental characterization of the out-of-plane performance of regular stone masonry walls, including test setups and axial load influence

Ferreira

Costa

Arêde

et al. 2015

Bull Earthquake Eng

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Stone masonry is one of the oldest and most worldwide used building techniques. Nevertheless, the structural response of masonry structures is complex and the effective knowledge about their mechanical behaviour is still limited. This fact is particularly notorious when dealing with the description of their out-of-plane behaviour under horizontal loadings, as is the case of the earthquake action. In this context, this paper describes an experimental program, conducted in laboratory environment, aiming at characterizing the out-of-plane behaviour of traditional unreinforced stone masonry walls. In the scope of this campaign, six full-scale sacco stone masonry specimens were fully characterised regarding their most important mechanic, geometric and dynamic features and were tested resorting to two different loading techniques under three distinct vertical pre-compression states; three of the specimens were subjected to an out-of-plane surface load by means of a system of airbags and the remaining were subjected to an out-of-plane horizontal line-load at the top. From the experiments it was possible to observe that both test setups were able to globally mobilize the out-of-plane response of the walls, which 123Bull Earthquake Eng (2015) 13:2667-2692 DOI 10.1007 presented substantial displacement capacity, with ratios of ultimate displacement to the wall thickness ranging between 26 and 45 %, as well as good energy dissipation capacity. Finally, very interesting results were also obtained from a simple analytical model used herein to compute a set of experimental-based ratios, namely between the maximum stability displacement and the wall thickness for which a mean value of about 60 % was found.

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Section: Seismic Performance Of Stone Masonry Structuresmentioning

confidence: 96%

Experimental characterization of the out-of-plane performance of regular stone masonry walls, including test setups and axial load influence

Ferreira

Costa

Arêde

et al. 2015

Bull Earthquake Eng

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“…The seismic behaviour of RC structures is a widely studied theme in the last decades, however the experimental response of RC elements under biaxial cyclic bending still very limited [1,2]. Rodrigues et al [3][4][5][6][7] tested 17 RC specimens with four types of full-scale rectangular building columns tested for different loading histories.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Different Retrofitting Technichs for Rc Columns Under Biaxial Loading: Experimental Study

Rodrigues¹,

Furtado²,

Rocha³

et al. 2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…They used the results of 186 half-scale square panels to define the infill Fig. 1 a Infill walls collapse (Romão et al 2013), b soft-storey mechanism (Costa et al 2010) and c out-of-plane and in-plane damage mechanisms in exterior masonry walls (Romão et al 2013) panel nonlinear material properties. Lofti and Shing studied in 1991 the efficiency of homogenous smeared-crack models to capture the response of reinforced masonry wall, and they showed that the smeared-crack model can accurately capture the flexural failure of the reinforced masonry wall (Lofti and Shing 1991).…”

Section: Micro-modellingmentioning

confidence: 99%

Modelling of masonry infill walls participation in the seismic behaviour of RC buildings using OpenSees

Furtado

Rodrigues

Arêde

2015

Int J Adv Struct Eng

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Recent earthquakes show that masonry infill walls should be taken into account during the design and assessment process of structures, since this type of nonstructural elements increase the in-plane stiffness of the structure and consequently the natural period. An overview of the past researches conducted on the modelling of masonry infilled frame issues has been done, with discussion of past analytical investigations and different modelling approaches that many authors have proposed, including micro-and macro-modelling strategies. After this, the present work presents an improved numerical model, based on the Rodrigues et al. (J Earthq Eng 14:390-416, 2010) approach, for simulating the masonry infill walls behaviour in the computer program OpenSees. The main results of the in-plane calibration analyses obtained with one experimental test are presented and discussed. For last, two reinforced concrete regular buildings were studied and subjected to several ground motions, with and without infills' walls.

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Field observations and interpretation of the structural performance of constructions after the 11 May 2011 Lorca earthquake

Cited by 134 publications

References 10 publications

Experimental characterization of the out-of-plane performance of regular stone masonry walls, including test setups and axial load influence

Experimental characterization of the out-of-plane performance of regular stone masonry walls, including test setups and axial load influence

Efficiency of Different Retrofitting Technichs for Rc Columns Under Biaxial Loading: Experimental Study

Modelling of masonry infill walls participation in the seismic behaviour of RC buildings using OpenSees

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