Cyclic Behavior of Diagonal-to-Upright Connection in Steel Storage Rack

Abstract

Currently, Automated Storage and Retrieval Systems (ASRS) are gaining popularity in the industrial sector. The ASRS generally utilizes ultra-high steel storage racks, which are sensitive to lateral forces such as seismic loads from earthquakes. To date, no experimental data exists on the behavior of the connection between the upright columns and diagonal bracing members in steel storage rack structures currently used in Thailand. This paper presents the experimental behavior of this connection under static and cyclic loading. The test specimens are configured as simply supported beams inclined at an angle of 38 degrees to the horizontal. The diagonal bracing members are oriented vertically, with the applied load acting along the bracing member. Key results include the load-displacement relationship at the column-to-diagonal member connection. After testing, a finite element model is created to simulate the load-bearing behavior and study the behavior of the connection with varying parameters. The results can be used in future structural design analysis for this type of structure.