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All Journal Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan Portal: Jurnal Teknik Sipil Construction and Material Journal Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT) JURNAL POLI-TEKNOLOGI
Iwan Supriyadi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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PENGGUNAAN AHP UNTUK PEMILIHAN METODE PERENCANAAN ANTARA KONVENSIONAL DENGAN BIM PADA REDESIGN PROYEK KONSTRUKSI Supriyadi, Iwan; Hasbi, Aland
Construction and Material Journal Vol 1, No 3 (2019): CONSTRUCTION AND MATERIAL JOURNAL VOL. 1 NO. 3 NOVEMBER 2019
Publisher : Politeknik Negeri Jakarta

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Abstract

Abstract  During the construction projects, delays usually happen which are mainly caused by reworks, where 60% of reworks are caused by design failure. Since designs have a major impact on construction projects, there are methods to correctly create a design. Three methods of planning that can be done are conventional, semi-conventional, and BIM methods. The three methods have both advantages and disadvantages. Decision making for method selection for redesigning is very crucial to avoid delays to a project. The three main criteria in method selection are cost, time, and system. This research was done to decide the main criteria, sub-criteria, and an alternative in decision making of method selection for redesigning through the use of AHP (Analytical Hierarchy Process) and analyze conditions on the field with the result of AHP analysis. The result showed that cost was the main criterion with a weight if 0.40 and the sub-criterion for the cost was the HR  training cost with a global weight of 0.21. Alternative planning method selected was the BIM method with a global weight of 0.66. The result of field analysis showed that BIM planning method was 60.4% faster than the conventional method with an increase of training cost by 62.5%. The conclusion of this research was that BIM planning method was more efficient than conventional and semi-conventional planning in the process of re-design.Key words: Re-design, Conventional, BIM, AHPAbstrak Pada pelaksanaan proyek konstruksi, keterlambatan dengan rework menjadi penyebab utama dimana 60% penyebab Rework disebabkan oleh kesalahan desain. Besarnya dampak desain pada proyek konstruksi maka berbagai cara dilakukan untuk menyelesaikan proses desain dengan tepat. Tiga metode perencanaan yang dapat dilakukan yaitu Metode Konvensional, Metode Semi Konvensional, dan Metode BIM. Ketiga metode perencanaan tersebut sama-sama memiliki kelebihan dan kekurangan. Pengambilan keputusan saat pemilihan metode perencanaan pada pekerjaan re-design sangat krusial dalam mengurangi keterlambatan proyek. Banyaknya variabel dan kurangnya kriteria obyektif menyulitkan proses pemilihan metode perencanaan re-design. Tiga kriteria utama dalam proses pengambilan keputusan dalam pemilihan metode perencanaan re-design yaitu biaya, waktu, sistem. Penelitian ini dilakukan untuk menentukan kriteria utama, subkriteria dan alternatif dalam penentuan pengambilan keputusan dalam pemilihan metode perencanaan re-design dengan menggunakan metode AHP (Analytical Hirerachy Process) dan menganalisa kondisi di lapangan dengan hasil analisis AHP. Hasil penelitian menunjukkan biaya menjadi kriteria utama dengan bobot sebesar 0.40 dan subkriteria yang terpilih adalah biaya pelatihan SDM dengan bobot global sebesar 0.21. Alternatif metode perencanaan yang dipilih adalah metode perencanaan BIM dengan bobot global sebesar 0.66. Hasil analisis lapangan juga menunjukan bahwa metode perencanaan BIM lebih cepat 60.4% dari metode perencanaan konvensional dengan peningkatan biaya pelatihan sebesar 62.5%. Simpulan dari penelitian ini adalah Metode Perencanaan BIM lebih efisien daripada Perencanaan Konvensional maupun semi-konvensional dalam pengerjaan re-design.Kata kunsi : Re-design, Konvensional, BIM, AHP
ANALISIS KELAYAKAN INVESTASI RELOKASI TOL PORONGGEMPOL AKIBAT TAMBAHAN LINGKUP PEKERJAAN Sugama, Agum Setya; Supriyadi, Iwan
Construction and Material Journal Vol 2, No 3 (2020): CONSTRUCTION AND MATERIAL JOURNAL VOL. 2 NO. 3 NOVEMBER 2020
Publisher : Politeknik Negeri Jakarta

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ABSTRACTSurabaya–Gempol Toll Road is a toll that has operated since 1986, but in 2006 the Porong-Gempol route collapsed due to lapindo mud flow. Therefore, the toll road needs a relocation. On the construction of its relocation, additional scope of work was added and affected the feasibility of the investment which must be put into consideration for analyzing purposes in order to regain the initial feasibility value of 14.84% IRR. The forecast of cost and income analyzed with financial approach. The method used are Net Present Value (NPV) and Internal Rate of Return (IRR) with a discount rate of 11.8%. The result of investment feasibility after additional scope of work shows that the NPV during concession period (39 years) is negative Rp459.150.000.000,00 and IRR at NPV = 0 is 9,55%. To return the feasibility value, concession period is must be increase to 50 years with adjustment of the toll fee to Rp1.625 in 2021 and Rp1.980 in 2023. It shows that NPV is Rp1.037.727.000.000,00 and IRR at NPV = 0 return to 14,84%.Keywords: Additional scope of work; Compensation; Feasibility; RelocationABSTRAKJalan Tol Surabaya-Gempol merupakan jalan tol yang sudah beroperasi sejak tahun 1986 akan tetapi pada tahun 2006 ruas tol Porong-Gempol terputus oleh lumpur lapindo sehingga perlu dilakukan relokasi. Dalam pembangunan relokasi ruas tol tersebut, terjadi tambahan lingkup pekerjaan sehingga membuat biaya investasi membengkak sehingga perlu diketahui pengaruhnya terhadap nilai kelayakan investasi proyek tersebut untuk kemudian dilakukan analisis dalam upaya pengembalian nilai kelayakan yaitu IRR sebesar 14,84% seperti kondisi awal. Prakiraan biaya dan pendapatan akan dianalisis dengan pendekatan finansial. Metode yang digunakan adalah Net Present Value (NPV) dan Internal Rate of Return (IRR) dengan discount rate 11,8%. Hasil evaluasi kelayakan investasi akibat tambahan lingkup pekerjaan menunjukkan bahwa NPV selama masa konsesi (39 tahun) adalah negatif Rp459.150.000.000,00 dan IRR pada NPV = 0 adalah 9,55%, nilai IRR ini lebih kecil dari discount rate yaitu 11,8%. Untuk mengembalikan nilai kelayakan, dilakukan skema kompensasi penambahan masa konsesi menjadi 50 tahun dan penyesuaian tarif tol baru menjadi Rp1.625,00 pada tahun 2021 dan Rp1.980,00 pada tahun 2023. Hasil dari skema kompensasi tersebut menunjukkan bahwa NPV sebesar Rp1.037.727.000.000,00 dan IRR pada NPV = 0 kembali ke nilai 14,84%.Kata kunci: Kelayakan; Kompensasi; Relokasi; Tambah Lingkup
Analisis Faktor Keterlambatan Pada Pembangunan Proyek X Fahira Khairani; Supriyadi, Iwan
Journal of Applied Civil Engineering and Infrastructure Technology Vol 2 No 2 (2021): Desember 2021
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v2i2.248

Abstract

In a construction project generally has its own work schedule and activities. Project planning refers to the estimates that have been generated at the time of planning. If there is a discrepancy between the planned plan and its implementation, it can cause delays in project development. Based on the s curve, in May the progress should have reached 83.8%, but the realization in the field has only reached 59.2%, As a result, late indications might be detected in the project. It's necessary to look at the dominant reasons of project delays based on the percentage data. The purpose of this study is to reveal or find the dominant factors that affect delays and solutions for delays in the construction of Project X. Data was collected by distributing questionnaires to individuals who were directly involved with project development such as contractors, supervisory consultants, and owners. Multiple linear regression analysis was used to analyze the data using SPSS V25 software. The financial factor with parameter X28, namely late payment by the owner obtaining a β value of 0.386 has proven to be the most significant factor in the delay in the construction of Project X and the effort to overcome this delay is to provide a letter to the owner to make a cash-in plan to pay off the outstanding payment in progress.
Public relations strategy in rebuilding Airline Company reputation following aircraft crash Mudiardjo, Rapin; Ariantoro, Muhammad Firdaus; Supriyadi, Iwan; Aras, Muhamad; Hidayat, Z.
Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan Vol. 5 No. 1 (2022): Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan
Publisher : Departement Of Accounting, Indonesian Cooperative Institute, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.239 KB) | DOI: 10.32670/fairvalue.v5i1.2238

Abstract

The issue discussed in this study is rebuilding Lion Air's reputation tarnished by aircraft accidents. This study aims to identify public relations strategies pursued by case study of Lion Air, Indonesia, to rebuild its reputation following air accidents it has been involved. The research method employed in this study is the qualitative method using single case studies on Lion Air Company. Data is collected through observation, interviews, and a review of news articles in the media. The output of the research takes the form of corporate strategies that are aimed at rebuilding the company's reputation using stakeholder approaches, including (1) alignment of internal perceptions within the organization; (2) "communication holding,"; (3) centralization of information issuance; (4) appointment of partners as "communicators"; (5) use of humanitarian approaches. The conclusion drawn from the research is that public relations strategies through a stakeholder approach would provide a basis for Lion Air's management to exercise control over information that brings positive value. The result also shapes stakeholders' perceptions to align with the company's expectation in restoring its reputation.
Perancangan Green Design Kolam Renang di Desa Cipelang Kabupaten Bogor Pratiwi, Devi Megarusti; Sutantiningrum, Kartika Hapsari; Supriyadi, Iwan
Portal: Jurnal Teknik Sipil Vol 16, No 3 (2024): October Edition
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v16i3.5646

Abstract

Kementerian PUPR mendukung pembangunan desa wisata dengan membangun infrastruktur ramah lingkungan. Pembangunan infrastruktur ramah lingkungan tersebut akan meningkatkan kapasitas daerah wisata dalam hal pengolahan air (water treatment). Jawa Barat adalah salah satu wilayah yang mempunyai kekayaan alam yang mempesona. Objek wisata di Jawa Barat cukup banyak diketahui masyarakat mulai dari wisata pantai, laut, pegunungan, cagar alam, air terjun juga wisata lainnya. Adapun salah satu lahan yang akan direncanakan sebagai objek wisata kolam renang dengan pemandangan alam yang terletak di desa Cipelang Kecamatan Cijeruk Kabupaten Bogor yang memiliki luas lahan 1,5 Ha. Tujuan dan kontribusi penelitian ialah merencanakan sistem kolam renang (water treatment) pada kolam wisata dengan baik dan benar dengan memanfaatkan air sungai yang berada di sekitar lahan wisata sehingga tidak merusak simpanan air tanah berdasarakan hasil uji laboratorium. Pada penelitian ini akan dimulai dengan menghitung jumlah debit air hujan dan beban air pada permukaan tanah, kemudian melakukan survey DAS (Daerah Aliran Sungai) yang dapat dimanfaatkan untuk kebutuhan air kolam serta pengukuran kualitas air bersih sesuai dengan Peraturan Menteri Kesehatan Nomor 32 Tahun 2017  yaitu temperatur, pH, TSS, BOD, COD, dan DO. Kemudian dilanjutkan dengan menyusun DED (Detail Engineering Design) untuk struktur kolam beserta dengan water treatmentnya. Selanjutnya peneliti akan mendesain sistem pengolahan air pada kolam sehingga dapat memenuhi standar kualitas air bersih. Hasil dari pengujian kualitas air untuk kolam renang yaitu untuk parameter bau 1, kekeruhan 0,8, suhu 24,4, TDS 50,63, TSS 2,5, pH 5,13, Cl2 0,74, DO 6,8, COD 10,75, BOD5 0,21, E-Coli 1. Sehingga perlu dilakukan perencanaan agar nilai kekeruhan pH dapat sesuai dengan standar baku mutu. DED gambar berupa rencana kolam dan sistem pompa beserta filtrasi untuk mendukung penyaringan air baku yang akan digunakan untuk kolam renang sesuai dengan baku mutu kekurahan yaitu SNI 06 6989.25-2005 dan pH SNI 6989.11-204 tanpa menggunakan bahan kimia chlorin.
STUDI KASUS KERUSAKAN JEMBATAN DAN PENGARUHNYA TERHADAP SISA UMUR JEMBATAN Andi Indianto; Iwan Supriyadi
Jurnal Poli-Teknologi Vol. 12 No. 1 (2013)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v12i1.589

Abstract

This paper presents the results of research case studies of bridge damage and influence on the remaining life of the bridge. This research takes the case of the highway bridge between kebon jeruk – penjaringan west of jakarta. The purpose of this activity is to get an idea of the residual life of the bridge that is related to the presence of defects in the structure of the bridge. To determine the actual condition of the bridge, performed data collection by measuring the compressive strength of concrete, crack depth, crack width, thick concrete cover, reinforcement diameter, reinforcement spacing, deflection due to load and run. From these data made feasibility and serviceability analysis to determine the value of the bridge.condition. Furthermore value condition used to predict the residual life of the bridge. The results of the residual life analysis showed that highway bridge on 1 segment , who suffered damage to the value of the condition 2.67, residual life if the damage continue only 1.07 years, and if the damage does not continue, the remaining life of 11.67 years. For segment 3 which suffered minor damage with the value of condition 2, residual life if the damage continues only 2,125 years, and if the damage does not continue the residual life of 18.89 years. Keywords: bridge, pile slab, value condition, feasibility, serviceability, remaining life.
Co-Authors Andi Indianto Aras, Muhamad Ariantoro, Muhammad Firdaus Fahira Khairani Hasbi, Aland Hidayat, Z. Mudiardjo, Rapin Pratiwi, Devi Megarusti Sugama, Agum Setya Sutantiningrum, Kartika Hapsari