Steel storage pallet racks are a crucial component in logistics chains, industry, and customer goods supplies. Any direct affectation to steel storage pallet racks and their contents significantly diminishes society's recovery capacity and causes important economic losses. Due to these factors and considering the high seismic vulnerability of steel storage pallet racks observed during past earthquakes, it is crucial to understand their seismic response under different scenarios. Traditionally, steel storage pallet racks are placed on ground floors; hence, their seismic design considers the characteristics of ground motions. However, it is a common practice for retail and hardware stores in Colombia to have parking slots on the ground floors and commercial and storage areas on the upper floors. This configuration subjects steel storage pallet racks to floor motions rather than ground motions, leading to greater seismic demand at long periods that could correspond to those of the racks' down-aisle direction periods. This study compares the seismic demand, in terms of drifts and peak accelerations, on different configurations of steel storage pallet racks subjected to nonlinear analyses using ground and floor motion inputs.
SEISMIC DEMAND ON STEEL STORAGE PALLET RACKS LOCATED ON UPPER FLOORS
Chalarca, Bryan;Gabbianelli, Giammaria;
2025-01-01
Abstract
Steel storage pallet racks are a crucial component in logistics chains, industry, and customer goods supplies. Any direct affectation to steel storage pallet racks and their contents significantly diminishes society's recovery capacity and causes important economic losses. Due to these factors and considering the high seismic vulnerability of steel storage pallet racks observed during past earthquakes, it is crucial to understand their seismic response under different scenarios. Traditionally, steel storage pallet racks are placed on ground floors; hence, their seismic design considers the characteristics of ground motions. However, it is a common practice for retail and hardware stores in Colombia to have parking slots on the ground floors and commercial and storage areas on the upper floors. This configuration subjects steel storage pallet racks to floor motions rather than ground motions, leading to greater seismic demand at long periods that could correspond to those of the racks' down-aisle direction periods. This study compares the seismic demand, in terms of drifts and peak accelerations, on different configurations of steel storage pallet racks subjected to nonlinear analyses using ground and floor motion inputs.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
