Seismic performance evaluation of precast reinforced concrete modular housing units using Mt. Pinatubo ejecta

This study aimed to develop prefabrication techniques for building reinforced concrete structures using Mt. Pinatubo ejecta as concrete aggregates and propose houses that are strong against earthquakes. This paper first gives an overview of the structure and a test design of prefabricated houses. Then, an investigation of their seismic performances is described, which involved static loading tests of full-scale frame models of the structures. A model for elasto-plastic analysis that could reproduce the behaviors of the frames was also constructed and used to calculate their responses and limit strengths, with which the seismic performances were checked.