Nonlinear Response of Low Rise Hospital RC Building in Malaysia Due to Far and Near Field Earthquake

摘要

Geographically, Malaysia is situated in relatively far away from active seismic fault zones. Therefore, the earthquake hazard is not exist in Malaysian dictionary of life before the new century. Therefore, seismic consideration is not required in public buildings design. However, since a shock from a gigantic Mw 9.0 earthquake in Aceh, Indonesia on 26 December 2004, Malaysian authority and public citizen become aware of that hazard. The possibility to implement the seismic design start to be discussed at least for important structures such as bridge and dam. Hospital also cannot be ignored in discussion since the buildings is very important and must secure during disaster such as earthquake. This paper presents the study on the nonlinear response of three storey hospital reinforced concrete moment resisting frame designed for medium seismic region in Sabah, Malaysia. The typical frame had been designed according to Eurocode 8 for ductility class medium. The nonlinear response history analysis had been conducted on all five frames with far field and near field earthquake ground motion records as input. The result shows that the magnitude of interstorey drift ratio is strongly influenced by the value of behavior factor, q used in the design. The former is increases around 23% - 52% and 44% - 65% when subjected to the far field and near field earthquakes, respectively as the value of behavior factor, q is increases.