HW
- Doctoral Supervisor
- Gender:
- Alma Mater:西安建筑科技大学
- Degree:Doctoral Degree in Engineering
- School/Department:科研院/土木工程学院
- Business Address:华侨大学厦门校区主楼1710/土木工程学院C5-402
- E-Mail:houwei@hqu.edu.cn
Contact Information
- Paper Publications
Wei Hou, Shilang Xu, Dashuai Ji, Qinghua Li, Pan Zhang. Seismic performance of steel plate reinforced high toughness concrete coupling beams with different steel plate ratios
Release time:2019-06-14 Hits:
- Journal:Composites Part B
- Abstract:Embedded steel plate reinforced concrete (PRC) coupling beams are newly introduced into the family of coupling beams to improve the seismic behavior of reinforced concrete (RC) coupling beams. However, the brittle crush and spalling of concrete in these composite members noticeably reduce their deformation performance and energy-dissipating capacity which largely deteriorate the efficiency of this combination. Considering this noteworthy shortcoming, in this paper the authors propose a novel type of composite coupling beams, which is entitled steel plate reinforced high toughness concrete (PRHTC) coupling beam. This novel member replaces the conventional reinforced concrete with the high toughness concrete (HTC) which is a sort of pseudo strainhardening cementitious composites exhibiting quasi-ductile behaviors. This study mainly investigates the seismic performance of PRHTC deep coupling beams (span-to-depth ratio, l/h=1.5) with various steel plate reinforcement ratios. The test results indicate that the PRHTC coupling beams exhibit a ductile flexural failure mechanism with excellent energy dissipation capability. The high toughness concrete in this composite member displays multiple cracking pattern and maintains desirable integrity. All specimens attained high-level ductility factors exceeding 5.5, survived large rotations ranging from 0.064 to 0.078 rad, manifested superior stiffness retention capacity and strength retention capacity. The steel plate ratio ranging from 4.31% to 6.47% is proven to be appropriate and effective for maintaining high ductility and rotation deformability of the PRHTC coupling beams in this paper.
- Indexed by:Journal paper
- Volume:159:
- Page Number:199-210
- Translation or Not:no
- Date of Publication:2018-09-28
- Included Journals:SCI
- DOI number:10.1016/j.compositesb.2018.09.100
- Links to published journals:https://doi.org/10.1016/j.compositesb.2018.09.100