Abstract
In this research, carbon fiber sheet (CFS) substitute to lateral tie was used for torsional strengthening of PC member. To investigate the mechanical properties of CFS strengthened PC member subjected to torsion and torsional reinforcement effects of CFS, monotonic and cyclic torsional loading tests were carried out with specimens which strengthened by lateral ties and unreinforced specimen for comparison. From both monotonic and cyclic loading test results, it was proved that the CFS can increase the ultimate torsional capacity and cracking torque. And it was also confirmed that the CFS had sufficient reinforcement effect, and for CFS strengthened specimen, the cracks of concrete were dispersed and widths were small. Mechanical properties such as torsional rigidity retention, residual twist, resilience and ductility were excellent. As for three-dimension finite element method analysis, analysis results matched the results of monotonic loading tests well and tracked the cyclic torsional loading tests when both nonlinear properties and hysteresis properties of each material were applied. A calculation concept including torsional effective cross-sectional area and thickness of shearing flow for the torsional capacity of CFS strengthened PC member was proposed.
| Original language | English |
|---|---|
| Journal | Structural Engineering/Earthquake Engineering |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 |
Fingerprint
Keywords
- CFS
- FEM analysis
- Loading test
- Torsion
- Torsional reinforcement
- Torsional rigidity
ASJC Scopus subject areas
- Architecture
Cite this
Study on torsion properties of carbon fiber sheet strengthened PC member with zebra-shaped. / He, Haiming; Kiyomiya, Osamu.
In: Structural Engineering/Earthquake Engineering, Vol. 25, No. 1, 2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Study on torsion properties of carbon fiber sheet strengthened PC member with zebra-shaped
AU - He, Haiming
AU - Kiyomiya, Osamu
PY - 2008
Y1 - 2008
N2 - In this research, carbon fiber sheet (CFS) substitute to lateral tie was used for torsional strengthening of PC member. To investigate the mechanical properties of CFS strengthened PC member subjected to torsion and torsional reinforcement effects of CFS, monotonic and cyclic torsional loading tests were carried out with specimens which strengthened by lateral ties and unreinforced specimen for comparison. From both monotonic and cyclic loading test results, it was proved that the CFS can increase the ultimate torsional capacity and cracking torque. And it was also confirmed that the CFS had sufficient reinforcement effect, and for CFS strengthened specimen, the cracks of concrete were dispersed and widths were small. Mechanical properties such as torsional rigidity retention, residual twist, resilience and ductility were excellent. As for three-dimension finite element method analysis, analysis results matched the results of monotonic loading tests well and tracked the cyclic torsional loading tests when both nonlinear properties and hysteresis properties of each material were applied. A calculation concept including torsional effective cross-sectional area and thickness of shearing flow for the torsional capacity of CFS strengthened PC member was proposed.
AB - In this research, carbon fiber sheet (CFS) substitute to lateral tie was used for torsional strengthening of PC member. To investigate the mechanical properties of CFS strengthened PC member subjected to torsion and torsional reinforcement effects of CFS, monotonic and cyclic torsional loading tests were carried out with specimens which strengthened by lateral ties and unreinforced specimen for comparison. From both monotonic and cyclic loading test results, it was proved that the CFS can increase the ultimate torsional capacity and cracking torque. And it was also confirmed that the CFS had sufficient reinforcement effect, and for CFS strengthened specimen, the cracks of concrete were dispersed and widths were small. Mechanical properties such as torsional rigidity retention, residual twist, resilience and ductility were excellent. As for three-dimension finite element method analysis, analysis results matched the results of monotonic loading tests well and tracked the cyclic torsional loading tests when both nonlinear properties and hysteresis properties of each material were applied. A calculation concept including torsional effective cross-sectional area and thickness of shearing flow for the torsional capacity of CFS strengthened PC member was proposed.
KW - CFS
KW - FEM analysis
KW - Loading test
KW - Torsion
KW - Torsional reinforcement
KW - Torsional rigidity
UR - http://www.scopus.com/inward/record.url?scp=45949106130&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=45949106130&partnerID=8YFLogxK
U2 - 10.2208/jsceseee.25.1s
DO - 10.2208/jsceseee.25.1s
M3 - Article
AN - SCOPUS:45949106130
VL - 25
JO - Structural Engineering/Earthquake Engineering
JF - Structural Engineering/Earthquake Engineering
SN - 0289-8063
IS - 1
ER -