SEISMIC PERFORMANCE OF MODULAR BUILDLING UNDER NEAR FIELD GROUND MOTIONS

This paper presents a thorough investigation into the seismic performance of modular buildings subjected to near-field ground motions. The study focuses on key structural response parameters, including drift, base shear, base moment, and acceleration, with a primary objective of comparing the probability distribution function (PDF) and fragility functions of these responses against limit states defined by industry standards such as FEMA. Unlike existing literature that often delves into control strategies, this research takes a pragmatic approach, emphasizing the inherent structural behaviour of modular buildings during seismic events. The study utilizes a modular building model to assess its performance under 69 realistic near-field earthquake scenarios. A comprehensive overview of the study's methodology is provided, detailing the numerical simulations and analyses conducted to evaluate the structural response. The results are meticulously discussed, highlighting key findings and their implications for the seismic resilience of modular buildings. The study concludes by outlining the practical significance of the study's outcomes in informing structural design considerations and enhancing the overall seismic performance of modular buildings in regions prone to near-field earthquakes. This work contributes valuable insights to the seismic engineering community, offering a practical perspective on the performance of modular structures under seismic loading.