The study is focused on the seismic performance of an existing hospital built in Tirana-Albania in 1970 and the retrofitting of this building.The hospital is a six floor building, with a frame system, designed with Albanian earthquake code of that time KTP-78. The ground acceleration of this area is 0.2m/s2. The building is designed with SAP-2000 computer program according to the Albanian earthquake code of that time KTP-89. The data collected from the program are compared with the Euro Code performance level. The program results show that all the data that are analyzed do not provide sufficient performance level. Therefore is an emergency need for retrofitting to bring it at the required level.There are varieties of ways where we can build up our strategies for building rehabilitation, especially for a specific institution, such as a hospital which requires a high performance level.The first way of retrofitting the frame system building is to add shear walls. After adding shear walls at the specific positions of the building, the hospital is reanalyzed and the performance level is not close enough to the EC performance level.Since the building is very particular, we can not add shear walls everywhere, because this might reduce the functionality of the frame system building, so to increase the performance levelwe add steel bracing in the facade.After putting steel bracing the hospital provide sufficient performance level.The rehabilitation makes the hospital a safer place for everyone.
Seismic assessment of an existing hospital, through analytical methods
Egla Luca
2012
Abstract
The study is focused on the seismic performance of an existing hospital built in Tirana-Albania in 1970 and the retrofitting of this building.The hospital is a six floor building, with a frame system, designed with Albanian earthquake code of that time KTP-78. The ground acceleration of this area is 0.2m/s2. The building is designed with SAP-2000 computer program according to the Albanian earthquake code of that time KTP-89. The data collected from the program are compared with the Euro Code performance level. The program results show that all the data that are analyzed do not provide sufficient performance level. Therefore is an emergency need for retrofitting to bring it at the required level.There are varieties of ways where we can build up our strategies for building rehabilitation, especially for a specific institution, such as a hospital which requires a high performance level.The first way of retrofitting the frame system building is to add shear walls. After adding shear walls at the specific positions of the building, the hospital is reanalyzed and the performance level is not close enough to the EC performance level.Since the building is very particular, we can not add shear walls everywhere, because this might reduce the functionality of the frame system building, so to increase the performance levelwe add steel bracing in the facade.After putting steel bracing the hospital provide sufficient performance level.The rehabilitation makes the hospital a safer place for everyone.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
