ANALYSIS OF PRESTRESSED FORCE LOSS DUE TO VEHICLE OVERLOADING ON RIGID PRESTRESSED PAVEMENT STRUCTURES
CASE STUDY: MARGOMULYO ROAD, SURABAYA
DOI:
https://doi.org/10.26740/rekats.v13n01.p30-38Keywords:
Loss of Prestressed Forc, Flex, Prestressed Concrete, Westergaad Method, PPCPAbstract
The development of road pavement structures is indispensable in building advanced Indonesian infrastructure, one of which is the implementation of the Precast Pre-Stressed Concrete Pavement (PPCP) System. In 2018 on Jalan Margomulyo, Surabaya has applied PT. Waskita Beton Precast Tbk. known as SPRigWP. However, traffic characteristics in Indonesia often experience overloading. By assuming overloading loads of 5%, 10%, and 15% from the LHR survey data, the number of prestressed and deflection force losses is known. In this study, the westergaard method is used in analyzing the amount of voltage that occurs as a result of traffic load. Based on data from the Surabaya City Government Transportation Office, the Margomulyo Road section has experienced an increase in vehicles of 6.17% per year so that it can be estimated that the number of vehicles with a planned age in 2038 is 50,882 vehicles Meanwhile, the results of the traffic survey for 7x15 hours recorded the highest LHR of 2263.133 kend/hour. The result of this study is that the traffic load of the survey results is 486,477 kN with an increase in load of 5%, 10% and 15% is 511,361.1 kN; 535,616 kN; and 559,938.2 kN. The value of prestressed force loss due to traffic load meets the maximum limit of 20% and the deflection value meets the maximum deflection requirement of 50 mm.
Keywords: Loss of Prestressed Force, Flex, Prestressed Concrete, Westergaad Method, PPCP
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