DOI Number : 10.5614/j.eng.technol.sci.2014.46.4.1
Hits : 6

Seismic Performance and Application of Sandwiched Buckling-Restrained Braces and Dual-Core Self-Centering Braces

Chung-Che Chou1,2, Ping-Ting Chung1 & Ying-Chuan Chen1

1Dept. of Civil Engineering, National Taiwan University,
No. 1, Roosevelt Road Section 4, Daan District, Taipei City 10617, Taiwan
2Research Fellow, National Center for Research on Earthquake Engineering,
200, Sec. 3, HsinHai Rd., Taipei 10668, Taiwan
Email: cechou@ntu.edu.tw


Abstract. This paper first presents cyclic test results  and  the  application  of  the proposed sandwiched buckling-restrained brace (BRB).  The proposed BRB can be easily  disassembled  in the field.  This  provides  an opportunity for inspection of  the  core  after  a  large  earthquake.  The  mechanics  and  cyclic  behavior  of  a novel  steel  dual-core  self-centering  brace  (SCB)  are  then  proposed  and introduced, followed by  the  testing of  a  dual-core SCB  in order  to evaluate  its cyclic  performance.  Both  braces  achieve  an  excellent  target  lateral  drift performance  of  up to 2.5%,  thus  satisfying  the seismic requirement by  the  AISC Seismic Provisions 2010.

Keywords: cyclic test; dual-core self-centering brace (SCB); sandwiched buckling-restrained brace (BRB).

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