Civil Engineering and Architecture Vol. 12(3A), pp. 2181 - 2197
DOI: 10.13189/cea.2024.121318
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Prototype Development of Bridge Approach Model with Precast Concrete-cell Box Structure to Overcome Differential Settlement

A Didik Setyo Purwantoro ^1,2,*, Pratikso ¹, R Mudiyono ^1
1 Department of Civil Engineering, Sultan Agung Islamic University, Indonesia
² Civil Engineering Study Programme, Faculty of Engineering, University of Muhammadiyah Sorong, Indonesia

ABSTRACT

Bridge approach linking the road trajectory and bridge construction usually utilizes embankment material. At the post-construction stage, there are many cases of embankment settlement, especially at the position under the approach slab behind the abutment, posing a potential risk of differential decline. To address this issue, evaluation study and planning analysis were conducted to improve stability and overcome differential settlement. Therefore, a model of Precast Concrete-cell Box (PCcB) structure was developed as a substitute for the mass of earth embankment, considering the maximum repetition load and staged plan load. This study employed the prototype model method, conducted by loading and settlement experiments on the bridge approach, especially on the approach slab. Model validation was analyzed using the Plaxis method based on the Finite Element Method. Furthermore, analysis and simulation were undertaken under maximum reaction force and loading conditions. The results of the analysis of the prototype model, obtained from the loading tests of 26.6447 kN, 27.0762 kN, and 29.1650 kN, indicated the displacement at LVDT (no.1-2-3), with a recorded value of 0.00 mm. However, during the loading tests of 38.7951 kN and 38.1185 kN, there was a displacement observed at LVDT (no.1 and no.3) of 0.00 mm, while LVDT (no.2) exhibited a displacement of -0.01 mm. This displacement suggests deformation or deflection in the approach slab structure. Nonetheless, it is important to note that the structure remains within acceptable safety margins despite this deformation, and no structural failure has been observed.

KEYWORDS
Bridge Approach, Differential Settlement, Precast Concrete-cell Box, Finite Element Method

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] A Didik Setyo Purwantoro , Pratikso , R Mudiyono , "Prototype Development of Bridge Approach Model with Precast Concrete-cell Box Structure to Overcome Differential Settlement," Civil Engineering and Architecture, Vol. 12, No. 3A, pp. 2181 - 2197, 2024. DOI: 10.13189/cea.2024.121318.

(b). APA Format:
A Didik Setyo Purwantoro , Pratikso , R Mudiyono (2024). Prototype Development of Bridge Approach Model with Precast Concrete-cell Box Structure to Overcome Differential Settlement. Civil Engineering and Architecture, 12(3A), 2181 - 2197. DOI: 10.13189/cea.2024.121318.