Performance Improvement for Steel Structures with Y-Braced Dampers

Project Details


Steel structures possess high strength and significant ductility, thus areeffective structural forms for earthquake-resistant designs. Structuraldesigns using special moment resisting frames (SMRF) are usuallyconsidered when high ductility is required. In order to improve theseismic performance of the structures, a modified structure adopting kneebraces, namely knee-braced moment resisting frame (KBRF), has beenproposed. This study is focused on the further improvement of seismicperformance for large-spanned steel frames by adopting a new Y-braceddamper system. The Y-braced damper is composed of highly ductileenergy dissipation plate and knee-braced segments. A series of cyclicloading tests will be conducted on the SMRF and Y-braced momentresisting frames with difference arrangement of energy dissipationmechanisms. Test results will be used to evaluate the frame strength,structural stiffness and the structural ductility so that the efficiency ofY-braced damper in seismic performance improvement can be justified.
Effective start/end date1/08/1731/07/18

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


Explore the research topics touched on by this project. These labels are generated based on the underlying awards/grants. Together they form a unique fingerprint.