Evaluation of the Effectiveness of Viscous Fluid in Chevron Brace Arrangement and Tuned Mass for the Control of Structures with Irregularity of Incoming Corners

Comun J.N.R.; Gora V.M.G.; Luis J.J.C.; Luna M.I.L. · SSRG International Journal of Civil Engineering (2026) · DOI: 10.14445/23488352/ijce-v13i4p117

Resumen

Peru is located in the Pacific Ring of Fire, prone to earthquakes, particularly in buildings whose construction is defined by quaker irregularities, like such in the geaming of the polygonal L, in which the corners overseeing construction recesses, thereby creating mass torsion of the rigid blocks, creating a torsional rapture increasing primary weaknesses of the buildings framed in the geplants. Under such conditions, the research assesses the VFDs in chevron-braced systems, and the other is a TMD, and this is framed within the 10-20 story Ls bonoment of the buildings Senator E034-150ft. The responses are modelled with ETABS, and the Structures Ease has confirmed that indeed there is viscosity, but the total effort is aimed at generating a further 59.93%, controlling the 58.43% acceleration, 56.31% control of drifting, and 48.14% control. To achieve this, the 10 to 15-storey buildings (10-15) should be able to increase viscosity. In contrast, the TMD was more efficient in tall buildings (18–20 storeys), with reductions in displacement of up to 60.27%, drifts of 49.21%, accelerations of 32.27%, and basal shear of 59.92%, due to its resonant energy absorption when the tuning frequency coincides with that of the predominant structural mode. In conclusion, the Chevron Brace is more stable and versatile in compact buildings, while the TMD is more effective in slender structures. Both systems complement each other by controlling accelerations and displacements, keeping the structural response within the elastic range, and improving the seismic safety of buildings with geometric irregularities.

Instituciones: Universidad Continental