Uncertainty Quantification of Structural Response Due to Earthquake Loading

In the performance-based structural design, the crucial component is to estimate the uncertainties in the structural responses precisely. The uncertainty may lie in many structural design parameters such as load, material properties, etc. Each parametric uncertainty has led to variation in the structural responses. Currently, structural design is performed considering the constant loading and material properties. But in reality, all these parameters are highly uncertain and can pose a wide variation in the structural responses due to earthquake loading. This study focuses on identifying the uncertainties arising from the different means and their impacts on the responses. The Monte Carlo Sampling (MCS) is employed to quantify the uncertainties in a structural deformation. The Multi-Degrees of Freedom (MDOF) structural model is constructed in the OpenSees program, and non-linear dynamic analysis is performed. The El-Centro earthquake was applied for the structural analysis. The result shows the probabilistic distribution of the earthquake response parameters. This approach is a more realistic representation of structural responses by incorporating the uncertainties in the design parameters. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG