STUDY ON THE EFFECT OF FLUID VISCOSITY VALUES ON THE PERFORMANCE OF FLUID VISCOUS DAMPER (FVD) IN A 20-STORY STEEL FRAME STRUCTURE

• Main Author: Agustinus, Ernest
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik sipil
• Online Access: https://digilib.itb.ac.id/gdl/view/82592
• Institution: Institut Teknologi Bandung

Indonesia is one of the countries located in the Pacific Ring of Fire. Consequently, Indonesia is susceptible to earthquake hazards. One of the devices capable of enhancing structural resilience against earthquakes is the Fluid Viscous Damper (FVD). In this Final Project, three 20-story steel frame structures will be compared. The first structure is not equipped with FVD, the second structure is equipped with low-viscosity FVD, and the third structure is equipped with high-viscosity FVD. The Final Project begins with calculating the damping coefficient values for each model, provided by Taylor Devices, using low and high fluid viscosity values. Then, both structures equipped with FVD are analyzed with linear time history analysis using ETABS v21.0.0 software. These two structures must meet two criteria for structures with damper systems, namely maximum roof displacement and maximum inter-story drift. The FVD placement configuration of both structures is designed iteratively until these two criteria are met. Based on the results obtained from the Final Project, the structure with highviscosity FVD has smaller floor displacement and acceleration compared to the low-viscosity FVD during an earthquake, although the reduction is not significant. However, the high-viscosity FVD in the structure has a significantly higher hysteresis curve compared to the low-viscosity FVD during an earthquake. This means that the structure with high-viscosity FVD has a much better capability in damping earthquake vibrations than the structure with low-viscosity FVD.