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INFLUENCES OF THE CHARACTERISTICS OF A SEMI-ACTIVE FRICTION-TYPE SEISMIC PROTECTIONSYSTEMS IN THE SEISMIC RESPONSE OF PALANAR REINFORCED CONCRETE FRAME

  • Universidad Javeriana

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The use of semi-active control devices to protect building from the occurrence of earthquakes have received focused attention in the last decades as these systems combine characteristics from passive and active control devices. The determination of the optimal parameters of a semi-active system, including the number and position of the devices, depends on the characteristics of the protection system, the main structural configuration and the seismic hazard. This research deals with the assessment of the influence in the seismic response of planar reinforced concrete (PRC) frames of equipping it with proposed friction-type semi-active dampers. The device is of variable damping, which has a passive reaction while the ranges of displacements do not exceed the imposed limit to generate the operation of the active part of the device. The active part has a function is used that allows to generate different frictional forces in the device that depend on the displacements of the structure due to the earthquake. The function has a minimum and maximum force that is exclusive of the capacity of the friction device. The assessment criteria correspond to the number, position and properties of the devices. The state space formulation for a shear-building configuration including semi-active dampers is reported and implemented in Matlab. Six PRC frames are subjected to the ten earthquake signals corresponding to the seismic hazard of Bucaramanga (Colombia).
Original languageSpanish
Title of host publicationProceedings of the XL Ibero-Latin-American Congress on Computational Methods in Engineering, ABMEC,
Pages1-12
Number of pages12
Volume1
Edition1
StatePublished - 11 Nov 2019

Publication series

NameXL Ibero-Latin-American Congress on Computational Methods in Engineering

Keywords

  • Semi-active Control
  • Structural Control
  • Friction
  • Dampers
  • Energy balance
  • Dissipators

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