Seismic loss optimization of frame buildings using viscous dampers

Arun M. Puthanpurayil, Oren Lavan, Rajesh P. Dhakal

Research output: Contribution to conferencePaperpeer-review

Abstract

The effectiveness of control strategies in achieving the objectives of a performance-based-design is well accepted in the earthquake engineering community. Consequently, various methods have been proposed for optimal design of dampers and their distribution along the building height. Most of the formulated methods concentrate mainly on reducing the responses with no explicit consideration of their long-term economic impact. In this study, an optimization problem is formulated for optimally distributing viscous dampers by minimizing the initial cost subject to a constraint on the total expected seismic loss. An intensity based assessment is used for the computation of the total expected loss. A generic Sequential Linear Programming procedure is employed to solve the formulated optimization problem. Implementation scheme of the optimization procedure is outlined in detail. The efficacy of the proposed procedure is illustrated by applying it on a four story reinforced concrete frame. It has been shown that the optimization procedure results in the optimal quantity and distribution of viscous dampers along the height of the case study building.

Original languageEnglish
Pages3767-3777
Number of pages11
DOIs
StatePublished - 2015
Event5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015 - Hersonissos, Crete, Greece
Duration: 25 May 201527 May 2015

Conference

Conference5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015
Country/TerritoryGreece
CityHersonissos, Crete
Period25/05/1527/05/15

Keywords

  • Earthquake engineering
  • Gradient optimization
  • Passive control
  • Sequential linear programming
  • Viscous dampers

All Science Journal Classification (ASJC) codes

  • Computers in Earth Sciences
  • Computational Mathematics
  • Geotechnical Engineering and Engineering Geology

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