Energy Dissipater for Concentrically Braced Frames: Brace Member with Combined Properties of Metallic Structural Fuse and Friction Damper

• Author / Creator

  Melnik, Alexander

• The main focus of this research is to develop and evaluate a high performance seismic energy dissipater for a concentrically braced frame that can be easily fabricated using common steel grades by a typical steel fabricator.
  Developmental stage of the research has concluded that brace member with combined properties of metallic structural fuse and friction damper can achieve superior performance while being a cost-effective solution. An experimental program was conducted to evaluate hysteretic response of six configurations of prototype brace member. Physical tests demonstrate that proposed energy dissipater can sustain axial deformation of up to 140.0 mm under incrementally increasing cyclic load. Parametric study was performed using FEA to evaluate and postpone out-of-plane buckling within metallic structural fuse that was observed during the experiment.
  Experimental program results demonstrate that developed seismic energy dissipater is capable of achieving high ductility and superior, in certain aspects, performance when compared to existing alternatives.

• Subjects / Keywords

  • Yielding Steel Plate Fuse
  • Metallic Structural Fuse
  • Seismic Energy Dissipater
  • Earthquake Engineering
  • Friction Damper
  • Seismic Damper
  • Concentrically Braced Frame

• Graduation date

  Spring 2014

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R36D64

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.