Experimental Evaluation of Dynamic Properties of Controlled Building

Abstract

Nowadays, taller, more flexible, and lighter structure are built due to space constraints. These structures are more sensitive to dynamic loadings like wind, earthquake, etc. Therefore, it is necessary to control the responses of such structures to protect them against hazards. This paper includes the experimental determination of dynamic properties of uncontrolled as well as controlled building. Controlled building includes Tuned Mass Damper (TMD) and Base Isolation System. Two types of Buildings, one represented as Single Degree of Freedom (SDOF) and other as Multi Degree of Freedom (MDOF) system are considered. Dynamic properties like natural frequency and damping ratio are extracted for both types of buildings. It is found that both TMD as well as base isolation system shows increment in damping ratio for SDOF and MDOF systems and thus shows their efficacy.