Seismic Retrofitting of Non-Seismically Designed RC Beam-Column Joints using Buckling-Restrained Haunches: Design and Analysis

Bin Wang, Songye Zhu, You Lin Xu, Huanjun Jiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

Past earthquake reconnaissance showed that strong earthquakes can lead to substantial damage to non-seismically designed RC buildings, particularly to their beam-column joints. This paper presents a novel retrofit method using buckling-restrained haunches (BRHs) to improve the seismic performance of such joints. A numerical model for RC joints is introduced and validated. Subsequently, a new seismic retrofit strategy using BRHs is proposed, aimed at relocating plastic hinges and increasing energy dissipation. The results indicate the retrofit method can effectively meet the performance objectives.
Original languageEnglish
Pages (from-to)1-21
Number of pages21
JournalJournal of Earthquake Engineering
DOIs
Publication statusAccepted/In press - 12 May 2017

Keywords

  • Buckling-Restrained Haunches
  • Energy Dissipation
  • Non-Seismically Designed RC Beam-Column Joint
  • Plastic Hinge Relocation
  • Seismic Retrofit

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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