期刊
STRUCTURAL ENGINEERING AND MECHANICS
卷 61, 期 3, 页码 397-406出版社
TECHNO-PRESS
DOI: 10.12989/sem.2017.61.3.397
关键词
concrete torsion; multicell box girder; carbon fiber reinforced polymer; strengthened girders; finite elements; nonlinear analysis
资金
- Exploratory Research Grant Scheme (ERGS) [ER021-2012A]
The use of fiber reinforced polymer (FRP) for torsional strengthening of reinforced concrete ( RC) single cell box beams has been analyzed considerably by researchers worldwide. However, little attention has been paid to torsional strengthening of multicell box girders in terms of both experimental and numerical research. This paper reports the experimental work in an overall investigation for torsional strengthening of multicell box section RC girders with externally-bonded Carbon Fiber Reinforced Polymer CFRP strips. Numerical work was carried out using non-linear finite element modeling (FEM). Good agreement in terms of torque-twist behavior, steel and CFRP reinforcement responses, and crack patterns was achieved. The unique failure modes of all the specimens were modeled correctly as well.
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