Residual Behavior of Shear-Repaired Concrete Beams Using CFRP Sheets Subjected to Elevated High Temperatures
Source abstract
Abstract
This paper presents the residual behavior of unreinforced concrete beams repaired with carbon fiber-reinforced polymer (CFRP) sheets in shear subjected to elevated temperatures up to 200°C. An experimental program is conducted to examine the effects of high-temperature exposure on the response of constitutive materials, adhesive–concrete interface, and shear repaired beams. All test beams are notched to represent various levels of shear deficiency. A predictive modeling approach is proposed based on classical laminate theory. Elevated temperatures influence the capacity and interfacial characteristics of the repaired beams. Temperature effects, however, are not significantly correlated with the formation of diagonal tension cracks (shear crack) and their propagation rate. Shear resistance of the CFRP is found to be independent of high-temperature exposure because of the load-resisting mechanism associated with crack-plane strains and shear-failure angle.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fire effects on concrete materials · Structural Behavior of Reinforced Concrete · Structural Response to Dynamic Loads
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Assistant Professor, Dept. of Civil Engineering, North Dakota State Univ., Fargo, ND 58108.
Ph.D. Student, Dept. of Civil Engineering, North Dakota State Univ., Fargo, ND 58108.
Assistant Professor, School of Architecture, Soongsil Univ., Seoul, Korea (corresponding author).
References (44)
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