Seismic And Wind Analysis of Regular And Irregular RC Structures with Tuned Mass Damper
Deepak P. Kadam1, Atul B. Pujari2, Vipul N. Khosla3
1Deepak P. Kadam, Post Graduate Student Department of Civil Engineering, KJ College of Engineering & Management Research, Pune, India.
2Dr. Atul B. Pujari, Associate Professor Department of Civil Engineering, KJ College of Engineering & Management Research, Pune-411048, India.
3Vipul N. Khosla, Post Graduate Student Department of Civil Engineering, KJ College of Engineering & Management Research, Pune, India.
Manuscript received on 5 August 2019. | Revised Manuscript received on 11 August 2019. | Manuscript published on 30 September 2019. | PP: 2263-2269 | Volume-8 Issue-3 September 2019 | Retrieval Number: B3672078219/19©BEIESP | DOI: 10.35940/ijrte.B3672.098319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Latest trend in the development high rise structure demanding taller and lighter structures, which are progressively adaptable with very low damping ratio. As the structures developing vertically, they are ending up all the more affecting by powerful excitation forces, for example, wind and seismic forces. For the more safety of structure and inhabitant’s solace, the vibrations of the tall structures become a major issue for both structural designers. So as to control the vibration, various methodologies are proposed out of the few systems accessible for vibration control. Out of numerous methods, TMD has been observed to be increasingly powerful in controlling the dynamic forces caused due to seismic and wind excitations. In this paper, the adequacy of TMD in controlling the dynamic reaction of structures and the impact of different ground movement parameters on the seismic viability of TMD is researched. Essentially, a TMD is a vibratory subsystem appended to a bigger scale host structure so as to lessen the dynamic reactions. The frequency of damper will tuned to essential structure’s frequency, so when frequency is high, the damper will results to resonate out of phase along with structural movement. The objective of this work is to study the impact of TMD on the dynamic forces brought about by seismic tremor and wind excitations in standard just as unpredictable in tall RC building structures. For that three 22 story RC building structures are considered with a similar arrangement out of which one ordinary regular structure and the other two are irregular RC structures are demonstrated in Etabs. In irregular RC structures, Stiffness irregularity and torsional irregularity are considered. For assessing seismic and wind reactions of structures, time history analysis, and static analysis used, with and without the tuned mass damper in ETABS. The outcomes acquired from the investigation of three 22 story RC structures with and without tuned mass damper are compared.
Keywords: Tuned Mass Damper, Dynamic Responses, Time history Analysis, Etabs
Scope of the Article: Behaviour of Structures under Seismic Loads