A New Approach to the Optimal Placement of the Viscous Damper Based on the Static Force Distribution Pattern

Authors

  • Mohammad Reza Hashemi
    Affiliation
    School of Engineering, Semnan University, 35131-19111 Semnan, Iran
  • Reza Vahdani
    Affiliation
    School of Engineering, Semnan University, 35131-19111 Semnan, Iran
  • Mohsen Gerami
    Affiliation
    School of Engineering, Semnan University, 35131-19111 Semnan, Iran
  • Ali Kheyroddin
    Affiliation
    School of Engineering, Semnan University, 35131-19111 Semnan, Iran
https://doi.org/10.3311/PPci.17238

Abstract

Viscous dampers (VDs) are currently used an effective earthquake risk reduction measure. Due to the high cost of this type of dampers, an optimal damper layout across the stories will specifically improve the seismic response and reduce building costs. This paper introduces a new simple three-stage method to determine the optimal placement of VDs on different stories of reinforced concrete structures. In the first stage, the damping demand of each story was determined using the distribution pattern of earthquake forces by the equivalent static method and the story velocity obtained through time-history analysis. In the second stage, the number of dampers required for the structure was calculated, and the location and damping percentage of dampers were precisely determined through an iterative process in the third stage. An indicator representing all basic structural responses was used to evaluate the multiple choices for the damper layout. This process was evaluated for 4, 8 story concrete frames under a near-field earthquake. The results indicated the efficiency of the proposed method in determining the location and damping of VDs on different stories of the structure.

 

Keywords:

viscous damper, near-field earthquake, three-stage algorithm, optimal layout, equivalent static method

Citation data from Crossref and Scopus

Published Online

2022-06-30

How to Cite

Hashemi, M. R., Vahdani, R., Gerami, M., Kheyroddin, A. “A New Approach to the Optimal Placement of the Viscous Damper Based on the Static Force Distribution Pattern”, Periodica Polytechnica Civil Engineering, 66(3), pp. 866–875, 2022. https://doi.org/10.3311/PPci.17238

Issue

Section

Research Article