Evaluation of the Soil-Structure Interaction through Environmental Vibration Tests of the Historic Religious Monument Santa Ana located in Barrios Altos, Lima.

This study investigates the Soil-Structure Interaction of the historic church of Santa Ana located in Lima, and focuses on its conservation using non-destructive methods to measure its dynamic behavior. The techniques applied were Multichannel Analysis of Surface Waves (MASW), Multichannel Multiple Array (MAM), Vertical Horizontal Spectral Ratio (HVSR). For the creation of the FEM I perform laser scanning for high-precision three-dimensional survey. The results obtained through the MASW and HVSR test allowed us to characterize the soil type as S _{1 as well as to determine their dynamic properties, including the velocities of seismic wave propagation ( V p y V s ), unit weight (γ), Poisson's coefficient and dynamic moduli (Gd, Ed, Kd). In addition, by means of HVSR, the predominant periods of vibration of the investigation site were obtained, with values ranging from 0.129 s to 0.169 s, key information for the estimation of the natural frequencies of the structure and the soil-structure interaction analysis. This methodological approach not only promotes the preservation of the structural integrity of the church, but also proposes a replicable model for the intervention of similar heritage buildings. The research highlights the importance of considering the soil-structure interaction to mitigate risks.}