Innovations in Torsion, Flexure, and Shear-Yielding Dampers: State-of-the-Art and Future Prospects

Steel structures are recognized for their excellent earthquake-resistant capabilities. However, this perception was challenged after the catastrophic earthquakes of ۱۹۹۴, which caused widespread damage to steel structures. Conventional seismic design methodologies primarily rely on the strength and ductility of the system, enabling structures to remain elastic under low-magnitude quakes and undergo inelastic deflections during high-magnitude shocks to dissipate energy. This reliance on ductility has prompted extensive research to enhance structural strength and resilience. This article provides a comprehensive review of metallic dampers as a pivotal advancement in seismic-resistant steel structures. The dampers discussed are classified into torsion, flexure, and shear-yielding categories. Among these, mild steel emerges as the most favored material due to its superior properties. Additionally, this paper integrates insights from experimental and numerical studies, addressing the evolution of metallic dampers, their design principles, and future directions for research.

کلیدواژه ها:

Metallic Damper ، Steel Structures ، Seismic Loads ، Energy Dissipation ، Earthquake Resistance