Article Open Access

Engineering Analysis of Implementation and Cost of Parapet Precast with Parapet Conventional/In-situ

Yoga Prasetya, Aditya Novendra Jaya, Razez Nugraha Erson, Yogi Permana, Mohamad Aripin Nurjanah, Siti Luthfiyah Permata Hadi

Abstract


A parapet is a solid side barrier installed on the edge of elevated structures such as bridges, pile slabs, or BUP at toll roads/ freeways. One innovation that can be developed to overcome the problems of conventional (in-situ) methods is the use of precast parapets, which can be produced in workshops or fabrication sites. Therefore, it is necessary to analyze the structural design, implementation method, and cost aspects that will be presented in this research. This study uses precast parapet designs with 2 different dimensions, namely 2.5 m long in straight alignment and 1.5 m long in superelevation alignment, used in bridge structures or pile slabs in toll road construction. Engineering analysis of precast parapets is carried out to determine the performance of precast parapets against impact loads. Precast concrete is produced in a workshop location and then transported to the project site, and it has advantages over conventional methods. Based on engineering analysis, a precast parapet design calculation analysis has been carried out, which is expected to withstand an impact load of 21.5 tons. Assuming 100 m in terms of time, the manufacture of precast parapet is one day faster than the conventional/in situ method. In addition, less labor is required, where precast parapets require 23 people, while conventional parapets require 28 people. In terms of cost, with a length of one meter, the precast parapet is 26.41% more expensive than the conventional/in situ method. Therefore, future studies should combine life-cycle cost analysis and life-cycle assessment with full-scale lateral or impact testing in order to create a more thorough technical, economic, and environmental foundation for deciding between precast and cast-in-situ parapet systems


Keywords


Engineering Analysis, Parapet, Precast, Life-Cycle Cost

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DOI: https://doi.org/10.52088/ijesty.v6i1.1584

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Copyright (c) 2026 Yoga Prasetya, Aditya Novendra Jaya, Razez Nugraha Erson, Yogi Permana, M. Aripin Nurjanah, Siti Luthfiyah P.H

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