Load and Capacity Evaluation of 32 Meters Prestressed Concrete I-Girder
Keywords:
code, load, capacity, girderAbstract
Design methods of a civil structure are continuously improved to keep up with the building technology. One aspect of design methods evolution is a change in the codes or regulation which regulates structural safety to achieve the desired performance. This paper investigates the implication of the new load regulation (SNI-1725-2016) to the structural capacity of a single prestressed concrete I-girder (PCI Girder) with a span of 32 meters. The numerical analysis in this paper was carried out on CSI bridge software to model a single girder with 32 meters of span and 1,6 meters of height. The transfer of prestressed force on the girder is provided by a-high strength strand embedded in 54 MPa of concrete. The analysis showed that a single PCI girder sustained an ultimate flexural loading (Mu) of about 11,83 kNm and, at the same time, provided a 13,5 kNm of flexural capacity (Mn). Based on the result, it is concluded that applying a new loading rule to a single PCI Girder does not affect the capacity requirement.
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