Seismic Damage Assessment on Cast in situ Recycled Aggregate Concrete Frame Model Structure

Abstract:

Based on the shaking table tests of a six storey frame model structure made of recycled aggregate concrete (RAC), seven levels of standard for the grade classification of earthquake damage of the RAC frame structure were preliminarily put forward. The seismic performance level based on the structural damage limit state of the RAC frame structure was defined. Furthermore, a two parameter seismic damage model based on the deformation and the accumulated energy dissipation was suggested to evaluate the aseismic capacity of the RAC frame structure. The results show that the two parameter seismic damage model can well assess the damage process of the RAC frame structure system. The analysis results provide a basis for the performance based aseismic optimum design of the RAC frame structures.

Key words:recycled aggregate concrete (RAC); frame model structure; shaking table test; standard for grade classification of earthquake damage; seismic performance level; seismic damage model