Seismic Design Optimization for Long-Span Warehouses: A Comparative Study of Ordinary and Intermediate Moment Resisting Frames

This research addresses the seismic resilience of long-span steel warehouses, specifically focusing on the application of a moment-resisting frame system (MRFS).The main objective of this study is to comprehensively examine and compare the seismic performance of long-span warehouses using two distinct MRFS configurations: the ordinary moment-resisting frame system (OMRFS) and the intermediate moment-resisting frame system (IMRFS).The investigation strictly adhered to the Indonesian Building Code (SNI) guidelines.Notably, the results demonstrate striking similarities in the distribution of internal forces within the beams and columns for both the OMRFS and IMRFS systems in regions characterized by low to moderate seismic activity.This observation was primarily attributed to the predominant influence of gravitational loads under such conditions.This study reaffirms the appropriateness of the selected beam and column profiles for both systems, underlining the structural robustness of the designs.A key highlight of this investigation is the revelation of a substantial cost advantage associated with OMRFS endplate connections across a range of span configurations.These cost savings, when compared to IMRFS, indicate that the position of OMRFS is a cost-efficient choice, especially in regions with low to moderate seismic risk.These findings provide valuable guidance for stakeholders involved in the design and construction of long-span structures and offer a unique perspective that combines seismic resilience and cost-effectiveness.