Kalman Filter And Its Advanced Variants For Condition Assessment Of Hysteretic Structural Systems

Abstract

Civil infrastructures in the modern era are indispensable for basic facilities that help society function, including buildings, roads, utilities, and other systems. Its continuous development and maintenance are fundamental to the socio-economic growth of a country. These infrastructures have a speci c design life span, and they deteriorate as time progresses. Natural aging, overloading, and lack of maintenance are some of the primary causes of degradation. Besides aging, a structure also experiences damage due to natural calamities such as earthquakes, storms, tsunamis that often induce substantial distress and subsequent reduction of strength and service life. Structural health monitoring and condition assessment in periodic intervals, especially after any natural calamities, are crucial to avoid any catastrophic failure, which may lead to human causalities as well as severe economic losses.