Seismic performance evaluation of space-frame structures using nonlinear static and time-history analyses DOI Creative Commons
Fooad Karımı Ghaleh Jough, Sasan Babaei

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Год журнала: 2025, Номер 14(2), С. 659 - 667

Опубликована: Апрель 15, 2025

Space-frame structures are extensively used in modern architecture and engineering due to their high load-bearing efficiency, lightweight nature, suitability for large-span applications. This study assesses seismic response through nonlinear static time-history analyses using finite element modeling ABAQUS. Various configurations with different spans, heights, column arrangements were analyzed under loads. The modification factor (R) was evaluated concerning ductility-based reduction, overstrength, allowable stress factors, ranging from 2.6 3.8. Results indicate that structural ductility plays a crucial role determining the Response factor, notable variations across configurations. Increasing number of columns improves this whereas low-story models exhibit reduced ductile behavior. Time-history analysis reveals base shear values remain within similar range but sensitive frequency content. Additionally, increasing story height leads significant rise maximum roof displacement, highlighting influence on performance stability dynamic conditions.

Язык: Английский

Seismic performance evaluation of space-frame structures using nonlinear static and time-history analyses DOI Creative Commons
Fooad Karımı Ghaleh Jough, Sasan Babaei

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Год журнала: 2025, Номер 14(2), С. 659 - 667

Опубликована: Апрель 15, 2025

Space-frame structures are extensively used in modern architecture and engineering due to their high load-bearing efficiency, lightweight nature, suitability for large-span applications. This study assesses seismic response through nonlinear static time-history analyses using finite element modeling ABAQUS. Various configurations with different spans, heights, column arrangements were analyzed under loads. The modification factor (R) was evaluated concerning ductility-based reduction, overstrength, allowable stress factors, ranging from 2.6 3.8. Results indicate that structural ductility plays a crucial role determining the Response factor, notable variations across configurations. Increasing number of columns improves this whereas low-story models exhibit reduced ductile behavior. Time-history analysis reveals base shear values remain within similar range but sensitive frequency content. Additionally, increasing story height leads significant rise maximum roof displacement, highlighting influence on performance stability dynamic conditions.

Язык: Английский

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