Rehabilitación sísmica de edificaciones históricas en tapia pisada: Estudio de caso de capillas doctrineras reforzadas con malla de acero y madera de confinamiento

In Latin America, there is little research on colonial churches (chapels) built with earth (rammed earth) taking into account architectural, historical and structural (seismic performance) considerations. The lack of studies have produced bad interventions of the historical heritage. In this paper, the authors present results of shake table tests of 1:50 scale models of doctrinal rammed-earth chapels built in Colombia in the sixteenth and eighteenth centuries. The walls of the models of the chapels were seismically strengthened with two different techniques: Confinement wooden elements and steel mesh; both techniques applied only on one side of the walls. The results suggest that the seismic reinforcement systems evaluated diminishes the displacement of the walls up to 52 % and reduce the cracking.