PAGER - Common Building Types
Reinforced adobe construction
This is a reinforcement system for existing adobe houses, as well as an adaptation for new adobe houses, with the objective to prevent their collapse under severe earthquakes. The technique consists of reinforcing the walls with horizontal and vertical strips of wire mesh electrically welded, covered with mortar. It was applied in 1998 as pilot projects in 20 houses in six cities in Peru. Later in 1999-2000 it was extended to Chile, Bolivia, Ecuador and Venezuela. In the earthquake of June 23, 2001 (Mw=8.4) that affected southern Peru, six reinforced adobe houses had no damage. Neighboring dwellings of unreinforced adobe suffered heavy damage or collapsed. The August 15, 2007 Pisco earthquake (Mw8.0), 200 km south of Lima, also provoked the collapse of many traditional adobe houses. In Ica province, five houses were reinforced in 1998 using the wire mesh strips, and all withstand the earthquake undamaged.
Reference: EERI and IAEE\'s World Housing Encyclopedia (Report #107) - Daniel Quiun
Confined masonry building
This multifamily housing construction type has been the most commonly used in the urban areas of Peru during the last 35 years. Confined masonry buildings consist of load-bearing unreinforced clay masonry walls confined by cast-in-place reinforced concrete tie columns and beams. Tie columns are cast after the construction of the masonry walls is complete and they are connected to the tie beams. Confined masonry walls have limited shear strength and ductility; however, buildings of this type typically have a good seismic resistance.
Reference: EERI and IAEE\'s World Housing Encyclopedia (Report #50) - Cesar Loaiza F., Marcial Blondet
Confined masonry house
This is the most common single-family housing construction practice followed both in urban and rural areas of Peru in the last 45 years. Confined masonry buildings consist of load-bearing unreinforced masonry walls made of clay brick units, confined by cast-in-place reinforced concrete tie columns and beams. These buildings do not have a complete load path in both horizontal directions required for adequate lateral load resistance. However, in spite of that, typical houses may show a good seismic performance.
Reference: EERI and IAEE\'s World Housing Encyclopedia (Report #51) - Cesar Loaiza F., Marcial Blondet
This is a traditional construction practice that has been followed for over 200 years. Houses of this type can be found both in urban and rural areas in the coastal and highlands regions of Peru. Walls are made of adobe blocks laid in mud mortar. The roof structure is made of wood, and usually consists of timber beams with timber planks covered with a mud mortar overlay or with clay tiles or metal sheets. This construction is considered to be very vulnerable to earthquake effects.
Reference: EERI and IAEE\'s World Housing Encyclopedia (Report #52) - Cesar Loaiza F., Marcial Blondet, Gianfranco Ottazzi
*Building types and their descriptions are taken from the World Housing Encyclopedia (WHE) database when available or based on additional research performed by the PAGER team. This information is provided with the understanding that it is not guaranteed to be correct or complete, and conclusions drawn from such information are the sole responsibility of the user.