Seismic Performance of Engineered Masonry Buildings in the 2010 Maule Earthquake

Abstract

Engineered masonry, namely reinforced and confined masonry, has been widely used for housing construction in Chile over the last few decades. Most one- and two-story single-family masonry dwellings did not experience any damage due to the 27 February 2010 Maule earthquake, with the exception of a few dwellings of pre-1970 vintage, which suffered moderate damage. A similar statement can be made for three- and four-story confined masonry buildings: a large majority of buildings remained undamaged. However, several reinforced and partially confined three- and four-story masonry buildings suffered extensive damage, and two three-story partially confined buildings collapsed. The key damage patterns and the causes of damage are discussed in the paper. The extent of damage observed in the field was correlated with calculated vulnerability indices, and relevant recommendations were made related to the design and construction practices.

Behavior of Partially Grouted Concrete Masonry Walls under Quasi-Static Cyclic Lateral Loading

“…Hollow concrete block (HCB) partially grouted reinforced masonry (PG-RM) is an earthquake-resistant system that is common in several countries. This masonry typology, together with confined masonry, has shown good seismic performance in recent seismic events [1]. It should be noted that, as PG-RM shear walls consist of unreinforced masonry panels within grouted cores, they can be compared with confined masonry to some extent.…”

Evaluation of Seismic Vulnerability of Buildings Based on Damage Survey Data from the 2007 Pisco, Peru Earthquake

“…In the construction of confined masonry buildings, walls are often constructed prior to columns, and hence the bond strength between brick walls and columns is great. Thus, RC column members can transmit their seismic resistance to foundations [20].…”

Pérdidas de vidas, viviendas, infraestructura y embarcaciones por el tsunami del 27 de Febrero de 2010 en la costa central de Chile

“…Los estudios se focalizan sólo en los efectos del sismo sobre viviendas de albañilería (Astroza et al, 2012) y adobe (D'Ayala et al, 2012), o en el comportamiento del hormigón armado en edificios altos (Westenenk et al, 2012;Betanzo, 2010). Winckler et al (2010) analizan en forma somera el efecto de las cargas hidrodinámicas del tsunami en el poblado de San Juan Bautista, Archipiélago Juan Fernández, donde detectaron fallas por impacto y flotación en prácticamente todas las edificaciones ubicadas en la zona inundada.…”