Paper Title
Comparison of Seismic Performance of Braced Steel Frames & Tensegrity Braced Frames in Eight Storey Building with Mass Irregularity
Abstract
Tensegrity is a structural design concept that uses isolated components connected by cables or tendons to create a system balancing stability and flexibility, enhancing both strength and lightness. This study examines how varying mass distribution impacts seismic performance by comparing an eight-story concentrically braced steel frame with a Tensegrity bracing frame, focusing on different setback configurations that lead to abrupt reductions in the building’s plan dimensions and seismic weight at various heights. Three mass discontinuity scenarios—at 25%, 50%, and 75% of the building's height—were analyzed along with a structure with uniform mass distribution. The goal was to assess how these irregularities influence the seismic response of both systems, evaluating their stability, strength, and overall seismic performance. The findings showed that Tensegrity bracings produced less deflection compared to traditional systems. While the analysis was conducted for a single-bay, eight-story structure for simplicity, future research could extend this to entire building models with various floor numbers.