Akademik Veri Yönetim Sistemi
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY - TRANSACTIONS OF CIVIL ENGINEERING, cilt.48, ss.1-13, 2024 (SCI-Expanded)
Tunnel-Form System (TFS) has become widely preferred, both for their ability to meet the increased housing demand due
to the speed of construction and their high seismic performance. This underscores the importance of understanding TFS
buildings’ behaviour during earthquakes. To obtain realistic responses under earthquake efects, Nonlinear Time History
Analysis (NLTHA) is an efective method and, accordingly selection of appropriate Ground Motion (GM) and their scaling
to a target design spectrum is one of the important steps of NLTHA. In this study, the seismic behavior of a TFS building was
analyzed using three pairs of GMs scaled with Amplitude Scaling Method (ASM) and Spectrum Matching Method (SMM).
Due to the considerably large stifness matrices of the TFS buildings, NLTHA for that structure may require a signifcant
amount of time and substantial data storage. To address this, the study investigates the potential for reducing analysis duration
and data storage by shortening the records to their Signifcant Ground Motion (SGM) segment and comparing the results
with those obtained with the original records. The analysis results indicate that the responses obtained with ASM exhibit
greater variability compared to those obtained with SMM. Also, ASM yields greater responses than those for SMM and it
is noteworthy that using GMs scaled with ASM is more conservative. Additionally, a comparison of results from the entire
record and SGM segment has shown that using the SGM segment can signifcantly reduce analysis duration (60%) and the
amount of data storage (70%) without substantially altering the responses.