The Problem

Adobe brick is an inexpensive, readily-available construction material used throughout Latin America, especially in rural areas. Unfortunately, these solid and rigid bricks tend to crack and break apart during an earthquake, causing walls to collapse and ceilings to fall in. Much death and injury could be avoided if structures could be made more secure in this earthquake-prone country.

The Proposal

Researchers designed a frame consisting of a grid of bamboo poles anchored at the top and bottom that allows the walls and roof to react to the vibrations of an earthquake as a unit, rather than by breaking apart. The new design was tested on a seismic table and proved capable of resisting a force equal to that of Peru's strongest earthquakes.

The Potential

Several prototype models of schools, clinics, and community centres have been built and the construction methods have been widely promoted. The improved construction techniques require no special skills beyond those of an ordinary mason.

Further Information:

Withstanding an Earthquake, IDRC Reports, July 1992
Quake-Proof Adobe Housing, 101 Technologies, IDRC, 1992

Contact:

Ing. Gladys Villa Garcia
Jefe del Laboratorio de Estructuras Antisísmicas
Pontificia Universidad Católica del Perú
Casilla de Correo 1761
Lima 100
PERU

Tel: 4622540 or 4629515, anexo 259
Fax: (51-14) 611785
e-mail: gvillag@pucp.edu.pe

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