Investigation and comparison of two new dampers in short, medium and long structures

Authors

  • Samet Sadeghian Junior, Faculty of Engineering, Chalous Branch, Islamic Azad University, Chalous, Iran"Junior, Faculty of Engineering, Chalous Branch, Islamic Azad University, Chalous, Iran
  • Morteza Jamshidi
  • Akbar Shahidzade
  • Sepehr Saadat
  • Seyed Abbas Mojtabavi

Keywords:

Damper, Earthquake, Seismic Resonse, Structural

Abstract

An earthquake is one of the most common natural phenomena, which causes a lot of human and financial losses due to the
impossibility of predicting and preventing it. Iran is one of the regions with high earthquake risk in the world due to special
tectonic conditions and the existence of active faults and high seismicity. New methods in earthquake engineering, especially
in recent decades, have had a significant impact on reducing seismic damage to structures. Over the years, researchers have
introduced a variety of methods to reduce earthquake damage to structures. However, the existence of economic issues arising
from the use of innovative equipment has always been the subject of public debate. Structural control is one of the effective
methods of earthquake engineering to reduce seismic response. Structural control means that the characteristics of the
dynamic behavior of the structure are adjusted in such a way that the response of the structure does not exceed the allowable
limits due to external stimuli. One way to control the structural behavior is to use dampers. In this research, the performance
of a multi-level pipe in pipe damper and a new brace-type slit damper in structures is investigated. In this paper, first, four
structural models including two 5 and 10 story models with the same plan and two 10 and 15 story models with the same plan
are modeled in SAP software. Then the same structure is examined by considering the pipe damper in the pipe. The results
show that the presence of this type of damper reduces the structural responses, including drift and displacement of the
maximum roof to an acceptable extent. Also, according to the models, the performance of brace-type slit damper was better
than multi-level pipe in pipe damper.

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Published

2021-11-01

How to Cite

Sadeghian, S., Jamshidi, M., Shahidzade , A., Saadat, S., & Mojtabavi, S. A. (2021). Investigation and comparison of two new dampers in short, medium and long structures. Journal of Civil Engineering Researchers, 3(3), 1=12. Retrieved from https://www.journals-researchers.com/ojs/index.php/jcer/article/view/43

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