TY  - JOUR
T1  - Seismic Performance Assessment of Soft-Story RC Frame Buildings
AU  - Apostolska, Roberta
AU  - Necevska-cvetanovska, Golubka
AU  - Bojadzieva, Julijana
AU  - Gjorgjievska, Elena
PY  - 2016
DA  - September
Y2  - 2016
JF  - Journal of International Environmental Application and Science
JO  - J. Int. Environmental Application & Science
PB  - Şükrü DURSUN
WT  - DergiPark
SN  - 1307-0428
SP  - 241
EP  - 248
VL  - 11
IS  - 3
LA  - en
AB  - Soft-story buildings are characterized by an inadequate stiffness or flexibility of the groundfloor, which is less resistant to horizontal seismic forces than the upper storys.On the other hand, such inadequate stiffness causes disproportionaldisplacement focused on that story. As a result, the ground floor becomes weakand susceptible to partial or complete damage to its structural elements, whichin turn, results in collapse of the entire building. The results obtained fromthe performed linear and nonlinear push-over analyses show that the flexible storymay result in a drastic change of the period of vibrations, which will furtherlead to a change of the seismic design force, the maximal relative story driftsand ductility of the considered structure. Within this paper, the effect of theflexible story on seismic performance of building has been explored throughcomparison between a structure with regular story heights and a structure witha flexible story. The effects of upgrading the critical story by appropriate structural interventions like enlargement of the basecolumns cross-section and/or insertion of RC walls are also investigated.
KW  - soft-story
KW  - seismic resistance
KW  - relative displacement
KW  - story stiffness
KW  - “pushover” analysis
KW  - strengthening
KW  - upgrading
CR  - Chopra A, Goel RK, (2001) A modal push-over analysis procedure to estimate seismic demands for buildings: Theory and preliminary evaluation. Pacific Earthquake Engineering Research Center, 2001/03.
CR  - Dya AF,  Oretaa AW, (2015). Seismic vulnerability assessment of soft-story irregular buildings using push-over analysis.  Procedia Engineering 125, 925 – 932.
CR  - Guevara-Perez T., (2012). “Soft-story” and “weak story” in earthquake resistant design: A multidisciplinary approach. Proceedings of 15th World Conference on Earthquake Engineering, Lisboa, September 24-28, 2012.
CR  - Kanno H., Nishida T., & Kobayashi J., (2014). Substructure pseudo-dynamic tests on seismic response control of soft-first-story buildings. In Seismic Evaluation and Rehabilitation of Structures, Ilki and Fardis (Eds.), Springer International Publishing, Switzerland, 2014.
CR  - Necevska-Cvetanovska G., & Apostolska R., (2012). Methodology for seismic assessment and retrofitting of RC building structures, Proceedings of 15th World Conference on Earthquake Engineering, Lisboa, September 24-28, 2012, (Paper ID 2149).
CR  - Necevska-Cvetanovska G, Cvetkovska E, Cvetanovska J,  Gjorgjievska E, (2011) Earthquake resistance of RC buildings with “soft-story”. Proceedings of the 14th International symposia of the Macedonian Associations of Structural Engineers, Ohrid. 2011.
CR  - Necevska-Cvetanovska, G, Petrusevska (Apostolska), R. (2000).  Methodology for Seismic Design of R/C Building Structures. Proceedings of the 12th World Conference on Earthquake Engineering, New Zealand.
CR  - Wilson and Habibullah. SAP2000 (2006).  Structural Analysis Programme, CSI, Berkeley, California.
UR  - https://dergipark.org.tr/en/pub/jieas/article/481286
L1  - https://dergipark.org.tr/en/download/article-file/571400
ER  -