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All Journal Construction and Material Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) Sewagati
Saputra, Pungky Dharma
Universitas Pertahanan
Humanities Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Materials Science & Nanotechnology Social Sciences Transportation

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ANALISIS PERBANDINGAN KUALITAS DAN BIAYA PENGGUNAAN MECHANICAL COUPLER PADA KONSTRUKSI PIER PROYEK MRT JAKARTA CP 103 Saputra, Pungky Dharma
Construction and Material Journal Vol 2, No 3 (2020): CONSTRUCTION AND MATERIAL JOURNAL VOL. 2 NO. 3 NOVEMBER 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTThe Government of Indonesia is accelerating the development of railway infrastructures. MRT is a milestone in the development of railway infrastructures in Indonesia since 2013. The elevated construction uses a single pier structure with a main reinforcement bar diameter of 40 mm. However, the conventional overlapping connection is unsuitable; hence it used a mechanical coupler connection. This research focused on the quality and cost comparison of using a mechanical coupler as a reinforcing connection in the MRT CP 103 Project's pier construction. The variables which would be studied were conventional connection and mechanical coupler connection. There were two stages in this research: quality testing in an independent laboratory and a cost comparison analysis. The data used were primary data from quality testing results, and secondary data were the project volume and unit price. The project sample in this research was MRT CP 103 Project with Pier AP 29 as the case study. The analytical approach used was descriptive analysis by making a comparison of the two variables. According to the quality test results, the tensile strength of the reinforcement was 665.56 N/mm2 and the mechanical coupler tensile strength was 626.33 N/mm2 . According to the calculation results of the case study on Pier AP29, it was found that the price difference was IDR2,246,622 or 6.17% cheaper than conventional connection. Further analysis showed that the mechanical coupler connection with 40 mm diameter was very effective because it was cheap. This research can be used as a reference in the alternative selection of reinforcement connection.Keywords : Quality, Cost, Mechanical Coupler; Pier; MRT CP 103 ProjectABSTRAKPembangunan infrastruktur kereta api sedang dipercepat oleh Pemerintah Indonesia. MRT merupakan tonggak sejarah perkembangan infrastruktur kereta api di Indonesia sejak tahun 2013. Pada konstruksi layang digunakan struktur single pier dengan diameter tulangan utama 40 mm. Namun, penyambungan tulangan dengan sambungan konvensional dianggap tidak tepat, sehingga menggunakan sambungan mechanical coupler. Penelitian ini berfokus pada perbandingan kualitas dan biaya penggunaan mechanical coupler sebagai sambungan tulangan pada konstruksi pier Proyek MRT CP 103.Variabel yang akan diteliti adalah sambungan tulangan konvensional dan sambungan mechanical coupler. Penelitian ini terdiri dari dua tahap yaitu pengujian kualitas pada laboratorium independent dan tahap kedua adalah dengan melakukan analisis perbandingan biaya. Data yang digunakan adalah data primer hasil pengujian kualitas dan data sekunder yaitu volume dan harga satuan dasar proyek. Sampel proyek penelitian ini adalah Proyek MRT CP 103 dengan Pier AP29 sebagai studi kasusnya. Pendekatan analisis yang digunakan adalah analisis deskriptif dengan mencari perbandingan kedua variabel. Dari hasil pengujian kualitas didapat nilai kuat tarik tulangan sebesar 665.56 N/mm2 dan kuat tarik mechanical coupler sebesar 626.33 N/mm2 . Dari hasil perhitungan studi kasus pada Pier AP 29 didapat selisih sebesar IDR2,246,622 atau 6.17% lebih murah dari sambungan tulangan konvensional. Hasil analisis selanjutnya menunjukkan sambungan mechanical coupler sangat efektif bila digunakan diameter 40 mm karena murah. Penelitian ini dapat dijadikan referensi dalam alternatif pemilihan sambungan tulangan.Kata kunci : Kualitas; Biaya; Mechanical Coupler; Pier; Proyek MRT CP 103.
ANALISIS PERBANDINGAN KUALITAS DAN BIAYA PENGGUNAAN MECHANICAL COUPLER PADA KONSTRUKSI PIER PROYEK MRT JAKARTA CP 103 Pungky Dharma Saputra
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3581

Abstract

The Government of Indonesia is accelerating the development of railway infrastructures. MRT is a milestone in the development of railway infrastructures in Indonesia since 2013. The elevated construction uses a single pier structure with a main reinforcement bar diameter of 40 mm. However, the conventional overlapping connection is unsuitable; hence it used a mechanical coupler connection. This research focused on the quality and cost comparison of using a mechanical coupler as a reinforcing connection in the MRT CP 103 Project's pier construction. The variables which would be studied were conventional connection and mechanical coupler connection. There were two stages in this research: quality testing in an independent laboratory and a cost comparison analysis. The data used were primary data from quality testing results, and secondary data were the project volume and unit price. The project sample in this research was MRT CP 103 Project with Pier AP 29 as the case study. The analytical approach used was descriptive analysis by making a comparison of the two variables. According to the quality test results, the tensile strength of the reinforcement was 665.56 N/mm2 and the mechanical coupler tensile strength was 626.33 N/mm2 . According to the calculation results of the case study on Pier AP29, it was found that the price difference was IDR2,246,622 or 6.17% cheaper than conventional connection. Further analysis showed that the mechanical coupler connection with 40 mm diameter was very effective because it was cheap. This research can be used as a reference in the alternative selection of reinforcement connection. Keywords : Quality, Cost, Mechanical Coupler, Pier, MRT CP 103 Project.
Identification of Precast Parapet Work Activities in Elevated Railway Construction Pungky Dharma Saputra
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 2 No. 02 (2021): Variety of Case Study
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v2i02.3416

Abstract

Railway infrastructure development is very massive in Indonesia. Many projects have been constructing since 2013, such as the Mass Rapid Transit (MRT), Light Rail Transit (LRT), Double-Double Track (DDT), and High-Speed Rail (HSR). And all of these projects were design with elevated structures. When applying precast parapet panel technology in the MRT project elevated section, the contractor didn’t have a reference for precast parapet work activities. Hence, it required new planning for its construction and took time. The project sample of this research was MRT Jakarta CP 103 Project. There were three stages in this research starting from documentation analysis, expert judgment, and respondent survey. There were 5 bridge construction experts and 30 respondents which were professional engineers asked for their recommendations and opinions. Descriptive analysis was applied to know the percentage of opinions. This research focuses on identifying precast parapet activities in elevated railway construction project. There are 14 activities that had been identified in this research, namely preparation, position survey, adjustment material installation, precast parapet panel shifting from trailer to the top of deck slab, precast parapet panel distribution, precast parapet panel installation, rebar parapet installation for concrete stitch, sealing work, concrete casting, formwork dismantling, and finishing. These activities will be very useful for similar precast parapet works in a future project.
Membangun Ketahanan Berbasis Komunitas dalam Mengurangi Risiko Bencana Tanah Longsor di Desa Tangkil Kecamatan Citeureup Kabupaten Bogor Muhammad Hamzah Fansuri; Nina Purwanti; Anasya Arsita Laksmi; Sabrina Harahap; Surya Dewi Puspitasari; Pungky Dharma Saputra; Okri Asfino Putra; Suprayogi; Yanto; Baskoro Dian Pratama
Sewagati Vol 7 No 6 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i6.773

Abstract

Bencana longsor dengan intensitas besar dapat mengakibatkan kerusakan bangunan dan infrastruktur lainnya, sehingga menyebabkan hilangnya korban jiwa. Bencana longsor sejauh ini belum bisa diprediksi secara tepat atau dihindari. Akan tetapi dapat diminimalkan risiko kerugiannya salah satunya dengan peningkatan kapasitas berbasis komunitas. Kabupaten Bogor merupakan salah satu daerah rawan longsor melihat zona gerakan kerentanan tanahnya kategori menengah sampai tinggi. Kerentanan masyarakat terhadap bencana dipicu oleh pemahaman risiko yang terbatas sehingga mengakibatkan kurangnya kesiapsiagaan. Kesiapsiagaan dan ketahanan masyarakat dapat diwujudkan melalui kegiatan pengurangan risiko bencana berbasis komunitas dengan memberikan pendidikan dan pelatihan. Pengabdian masyarakat ini bertujuan untuk melakukan kajian terhadap kapasitas masyarakat dalam upaya pengurangan risiko bencana longsor berbasis komunitas di Desa Tangkil, Kecamatan Citeureup, Kabupaten Bogor. Metode yang dipakai adalah pendekatan deskriptif kuantitatif dan kualitatif dengan didukung pengumpulan data menggunakan kuesioner, observasi, dan studi dokumentasi. Hasil implikasi pelatihan menunjukkan bahwa adanya peningkatan pengetahuan dalam pengurangan risiko bencana longsor berbasis komunitas sebesar 48%. Strategi dalam meningkatkan kapasitas masyarakat sebagai upaya pengurangan risiko adalah menggiatkan gerakan pengurangan risiko bencana dibanding menghadapi risiko secara langsung. Upaya tersebut bisa berjalan efektif karena dilakukan dengan konsep desain yang jelas dan adanya partisipasi yang aktif dari masyarakat dan pemangku kepentingan terkait.
Co-Authors Anasya Arsita Laksmi Baskoro Dian Pratama Muhammad Hamzah Fansuri Nina Purwanti Okri Asfino Putra Sabrina Harahap Suprayogi Surya Dewi Puspitasari Yanto