Influence of Infills on the Seismic Behaviour of a Six Storey RC Frame at Different Levels of Demand (original) (raw)

2018

Abstract

The effect of infills on the global and local performances of a 6-storey reinforced concrete (RC) frame structure is investigated at two different seismic demand levels, using dynamic step by step analyses procedures. Three different seismic excitations extracted from PEER’s database are considered and are scaled to fit the Eurocode 8 (EC8) elastic spectrum for low zone of seismic hazard and ground type B. The examined seismic demands are the Significant Damage and the Near Collapse limit state (EC8-part3). Two types of infilled RC frames are studied: (a) fully infilled and (b) pilotis type frame (without infills at the base floor). The case of bare frame is also included for comparison reasons. Results in terms of failure modes, interstory drifts, top displacements, base shear requirements, ductility requirements and infills local inelastic responses are presented. In this study, the influence of infills on the seismic response of the 6-storey frame is beneficial at the limit state...

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