Performance of Y-Braced Steel Frames Subject to Near-Fault Ground Motion

Project Details


Steel structures possess high strength and significant ductility, thus are effective structural forms for earthquake-resistant designs. Structural designs using special moment resisting frames (SMRF) are usually considered when high ductility is required. In order to improve the seismic performance of the structures, a modified structure adopting knee braces, namely knee-braced moment resisting frame, has been proposed. This study is focused on the performance evaluation of Y-braced moment resisting frames subject to near-fault ground motion. The Y-braced damper is composed of highly ductile energy dissipation plate and knee-braced segments. A series of tests will be conducted on the SMRF and Y-braced moment resisting frames with different arrangement of energy dissipation mechanisms subject to near-fault loading protocol. Test results will be used to evaluate the frame strength, structural stiffness and the structural ductility so that the efficiency of Y-braced damper in seismic performance improvement can be justified.
Effective start/end date1/08/1831/10/19

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 11 - Sustainable Cities and Communities
  • SDG 17 - Partnerships for the Goals


  • Y-Braced Moment Resisting Frame
  • Near-Fault Ground Motion
  • Performance Improvement
  • Seismic Design


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