Construcciones Sismorresistentes de Albañileria para paises de Asia, Universidad de Mie-Japón NIED

This paper describes the shaking table tests performed on three full-scale confined masonry models in Peru in 2008, due to an agreement between several Japanese institutions and the Catholic University of Peru. The purpose of the experimental program was to observe the performance of low quality masonry constructions similar to those found in seismic active regions of South-East Asia (Indonesia, Pakistan, etc.), and to study two approaches in order to improve their seismic behavior. The models were built of hand-made clay bricks, laid with low quality mortar, and confined by columns and beams of low strength concrete. The overall dimensions of the models were 3x3m plan and 3 m height. The materials low quality properties were below the minimum required by the Peruvian Masonry Code (SENCICO 2006). The basic first model had no extra reinforcement. The second model had internal reinforcement with small wires to connect the masonry walls to the confining columns and a continuous lintel beam. The third model was similar to the first one, with external wire meshes covering the wall surfaces. Preliminary conclusions are given regarding the observed behavior and response. The international cooperation possibilities are emphasized to aid earthquake-prone countries without important research on masonry constructions.

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