Detection, placement and tracking loads on structural elements

Abstract

This paper presents an analytical, numerical and experimental approach to detect, measure, locate and track moving loads in a structural element using discrete strain measures. An analytical model considering an Euler-Bernoulli beam was first studied in simple supported beam. Then a computer gorithm was implemented by using numerical models to automatically detect, locate and track different concentrated loads on this structural element. Finally, steel and reinforced concrete beams were tested in the experimental phase to validate the algorithm. Nowadays we are developing more structural types, as slabs (building foundations) or plates (frameworks), and considering random boundary conditions. Together with multifunctional cement composites capable of sensing strain and damage (carbon fiber reinforced cement pastes or mortars), it could be a reakthrough in the field of preventive maintenance, offering a real time structural health monitoring system.