A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deflection of a concrete t-beam with prestressed and non-prestressed fiber reinforcement polymers at elevated temperatures
Prestressed concrete members have gained popularity as the most efficient and effective way of constructing a structural member with the best engineering and material properties. The method of prestressing a structural concrete member has the capability of controlling increased service loads with less depth over longer spans. However, deflections from over-loading or loading over time give a disadvantage to the common steel reinforced concrete members by the effect of corrosion as the structural concrete develop cracks. To prevent corrosion of a structural concrete member, exchanging of steel reinforcement with fiber reinforcing polymers (FRP) has sparked engineering interest in recent years. Prestressed and non-prestressed FRP reinforcement is the best technique for reducing tension in concrete. However, the performance of such structural members under elevated temperatures is currently unknown. The knowledge and application of this leads to a cost effective, and practical consideration in fire safety design. In this article, a model is developed using flexural rigidity of a concrete T-beam with prestressed and non-prestressed FRP reinforcement to study the deflection behavior at elevated temperature. The model is compared with the finite element model (FEM) of a T-beam with both prestressed and non-prestressed reinforcement subjected to practical elevated temperatures. In addition, comparison is made with an indirect reference to the real behavior of the material. The results of the model correlated reasonably with the FEM and the real behavior, and were within the accepted range of the American Concrete Institute (ACI) specifications.
Deflection of a concrete t-beam with prestressed and non-prestressed fiber reinforcement polymers at elevated temperatures
Prestressed concrete members have gained popularity as the most efficient and effective way of constructing a structural member with the best engineering and material properties. The method of prestressing a structural concrete member has the capability of controlling increased service loads with less depth over longer spans. However, deflections from over-loading or loading over time give a disadvantage to the common steel reinforced concrete members by the effect of corrosion as the structural concrete develop cracks. To prevent corrosion of a structural concrete member, exchanging of steel reinforcement with fiber reinforcing polymers (FRP) has sparked engineering interest in recent years. Prestressed and non-prestressed FRP reinforcement is the best technique for reducing tension in concrete. However, the performance of such structural members under elevated temperatures is currently unknown. The knowledge and application of this leads to a cost effective, and practical consideration in fire safety design. In this article, a model is developed using flexural rigidity of a concrete T-beam with prestressed and non-prestressed FRP reinforcement to study the deflection behavior at elevated temperature. The model is compared with the finite element model (FEM) of a T-beam with both prestressed and non-prestressed reinforcement subjected to practical elevated temperatures. In addition, comparison is made with an indirect reference to the real behavior of the material. The results of the model correlated reasonably with the FEM and the real behavior, and were within the accepted range of the American Concrete Institute (ACI) specifications.
Deflection of a concrete t-beam with prestressed and non-prestressed fiber reinforcement polymers at elevated temperatures
Dean, Zachary Scott (author)
Miscellaneous
Electronic Resource
English
DDC:
690
Deflection of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures
| BASE | 2016
Fiber Reinforcement in Prestressed Concrete Beams
| NTIS | 2005
Deflection of prestressed concrete beam using fiber reinforced polymer (FRP) tendon
| Online Contents | 2016