Evaluation of arrangements and distributions of fluid viscous dampers on seismic performance for Valley of Mexico

Fluid viscous dampers have become increasingly significant in the seismic design and rehabilitation of structures, as these devices can reduce both the response and damage of a structure. In this regard, it is crucial to evaluate the distribution and configuration of these devices within the structure. This paper examines several configurations of linear and non-linear fluid viscous dampers using three steel frames of 9, 16, and 20-storeys subjected to soft-soil earthquakes, such as those affecting the Valley of Mexico City. To evaluate the damper configurations, the seismic performance of the upgraded frames with different damper arrangements is assessed, considering various ratios of supplementary damping. The results indicate that the scissor-type configuration and storey shear strain energy distribution reduce the structural response by up to 80% compared to the diagonal configuration in the studied models.