Behavior of structural members under oblique impact loading

Abstract

Strategic infrastructure, including highway bridges, high-rise buildings, and other structures, uses structural members that are naturally exposed to oblique impact loads from falling rocks, cars, ships, and solid bodies with varying weights, geometric shapes, and impact velocities. As the failure of structural members can cause the entire structure to collapse, this study aims to understand how these members behave and what causes them to fail under non-axial or lateral impact loads, such as those caused by vehicles, moving ships, explosions, or terrorist attacks.

The collapse and cracking behavior of thin-walled columns subjected to oblique impact loads are influenced by several geometric characteristics, the most relevant of which are loading angle, width, length, and thickness. Beams that are subjected to oblique impact loads are impacted by factors such as impact speed, impactor body mass, dropped weight height, total impact energy, and member stiffness at the moment of impact. Loading was a possibility. The results showed that the oblique impact angle has an effect on reinforced concrete slabs subjected to oblique impact loads.  Researchers discovered that local damage is greater at loading angles more than 20 degrees compared to angles less than 20 degrees. The energy of the concrete slab was found to grow at a greater rate when subjected to an oblique impact load. The building has suffered less damage because of this. The impactor's shape greatly affects the deformation that reinforced concrete panels experience as a result of an angled impact load.