Abstract
This paper explores the combined effect of inerter and bio-inspired tuned mass damper (BTMD) on enhancing the performance the wind excited benchmark building. Initially, the performance of the building installed with BTMD on the top floor, under across wind loads is evaluated. In addition to this, an inerter is attached to the BTMD (BTMDI) and the performance of the benchmark building is studied. A mechanical device called an inerter has two terminals and generates an equal and opposing force proportionate to the relative acceleration between the terminals. One terminal of the inerter is linked to the BTMD and the other terminal is connected to the 76th floor of the structure in order to improve the performance of the structure. The response quantities of the building installed with BMTDI are studied, and compared with those installed with TMD and BTMD. Comparative study of various performance criteria of the building installed with BMTDI, BMTD and TMD is also carried out. Optimum values of parameters such as, damping ratio, frequency ratio and mass ratio of BTMDI are found by numerical search technique. The performance of the 76th - storey benchmark tower installed with BMTDI is enhanced considerably as compared to that with BMTD.
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