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CONSTRUCTION PERFORMANCE ANALYSIS IN THE PROJECT DELIVERY OF TOLL ROAD CONCESSION Milyardi, Roi; Wirahadikusumah, Reini D.; Abduh, Muhammad; Siregar, Budi H.
Jurnal Teknik Sipil Vol 27, No 1 (2020)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2020.27.1.5

AbstractPPP scheme has stimulate increasing the volume of infrastructure development in Indonesia from the period of 2014 and planned until 2025, where the toll road business is carried out by business entities with a concession period. In the PPP scheme, various variables need to be considered, including project cost, project complexity, strong public support, and performance indicators in each phase of toll road concession. The construction phase in the PPP scheme in Indonesia is the responsibility of the business entity regulated in PP No. 43 of 2013. Determination of project delivery on toll road construction projects is a strategy of the business entity to control the performance of the toll road construction project it manages. In the complexity of the variables in PPP, a variable pattern with project delivery is needed to find an effective strategy in achieving good construction performance. The purpose of this study is to identify patterns of achievement of construction performance on variations in project delivery in the toll road PPP scheme. The analytical approach QCA (Qualitative Comparative Analysis) is taken, with 14 BUJT case studies in 4 toll road networks in Indonesia. From the results of the study, two project deliveries, design-bid-build and design & build, were identified, which identified that project delivery variations did not have a strong influence on the performance of toll road construction projects, where other toll road PPP concession, such as business scheme, project management maturity, construction cost, length of road, corporation relation between business entities and contractor contractor's financial scheme, and land acquisition scheme variables which is more powerful. AbstrakMeningkatnya volume pembangunan infrastruktur di Indonesia pada periode 2014 dan direncanakan hingga tahun 2025 didorong dengan skema KPBU, dimana pengusahaan jalan tol dilakukan badan usaha dengan timbal balik suatu masa konsesi. Dalam skema KPBU, berbagai variabel perlu diperhatikan, diantaranya biaya proyek, kompleksitas proyek, dukungan publik yang kuat, hingga indikator kinerja pada setiap fase pengusahaan jalan tol. Fase konstruksi pada skema KPBU di Indonesia, menjadi tanggung jawab badan usaha yang diatur dalam PP No.43 Tahun 2013. Penentuan project delivery pada proyek konstruksi jalan tol menjadi strategi badan usaha mengendalikan kinerja proyek kosntruksi jalan tol yang dikelolanya. Dengan kompleksitas variabel dalam KPBU, diperlukan pola variabel dengan project delivery agar ditemukan strategi yang efektif dalam mencapai kinerja konstruksi yang baik. Tujuan dari penelitian ini adalah mengidentifikasi pola capaian kinerja konstruksi pada variasi project delivery di skema KPBU jalan tol. Pendekatan analisis yang dilakukan adalah QCA (Qualitative Comparative Analysis), dengan 14 studi kasus BUJT di 4 jaringan jalan tol di Indonesia. Dari hasil penelitian, diidentifikasi bahwa variasi project delivery tidak berpengaruh secara kuat terhadap capaian kinerja proyek konstruksi jalan tol. Kinerja konstruksi jalan tol lebih kuat dipengaruhi oleh variabel-variabel pengusahaan KPBU jalan tol lainnya, yaitu skema pengusahaan, maturitas manajemen proyek, biaya konstruksi, panjang jalan, skema finansial kontraktor, hubungan korporasi BUJT-korporasi, dan skema pengadaan tanah.

Construction Performance Analysis in the Project Delivery of Toll Road Concession Roi Milyardi; Reini D. Wirahadikusumah; Muhammad Abduh; Budi H. Siregar
Jurnal Teknik Sipil Vol 27 No 1 (2020)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2020.27.1.5

AbstractPPP scheme has stimulate increasing the volume of infrastructure development in Indonesia from the period of 2014 and planned until 2025, where the toll road business is carried out by business entities with a concession period. In the PPP scheme, various variables need to be considered, including project cost, project complexity, strong public support, and performance indicators in each phase of toll road concession. The construction phase in the PPP scheme in Indonesia is the responsibility of the business entity regulated in PP No. 43 of 2013. Determination of project delivery on toll road construction projects is a strategy of the business entity to control the performance of the toll road construction project it manages. In the complexity of the variables in PPP, a variable pattern with project delivery is needed to find an effective strategy in achieving good construction performance. The purpose of this study is to identify patterns of achievement of construction performance on variations in project delivery in the toll road PPP scheme. The analytical approach QCA (Qualitative Comparative Analysis) is taken, with 14 BUJT case studies in 4 toll road networks in Indonesia. From the results of the study, two project deliveries, design-bid-build and design & build, were identified, which identified that project delivery variations did not have a strong influence on the performance of toll road construction projects, where other toll road PPP concession, such as business scheme, project management maturity, construction cost, length of road, corporation relation between business entities and contractor contractor's financial scheme, and land acquisition scheme variables which is more powerful. AbstrakMeningkatnya volume pembangunan infrastruktur di Indonesia pada periode 2014 dan direncanakan hingga tahun 2025 didorong dengan skema KPBU, dimana pengusahaan jalan tol dilakukan badan usaha dengan timbal balik suatu masa konsesi. Dalam skema KPBU, berbagai variabel perlu diperhatikan, diantaranya biaya proyek, kompleksitas proyek, dukungan publik yang kuat, hingga indikator kinerja pada setiap fase pengusahaan jalan tol. Fase konstruksi pada skema KPBU di Indonesia, menjadi tanggung jawab badan usaha yang diatur dalam PP No.43 Tahun 2013. Penentuan project delivery pada proyek konstruksi jalan tol menjadi strategi badan usaha mengendalikan kinerja proyek kosntruksi jalan tol yang dikelolanya. Dengan kompleksitas variabel dalam KPBU, diperlukan pola variabel dengan project delivery agar ditemukan strategi yang efektif dalam mencapai kinerja konstruksi yang baik. Tujuan dari penelitian ini adalah mengidentifikasi pola capaian kinerja konstruksi pada variasi project delivery di skema KPBU jalan tol. Pendekatan analisis yang dilakukan adalah QCA (Qualitative Comparative Analysis), dengan 14 studi kasus BUJT di 4 jaringan jalan tol di Indonesia. Dari hasil penelitian, diidentifikasi bahwa variasi project delivery tidak berpengaruh secara kuat terhadap capaian kinerja proyek konstruksi jalan tol. Kinerja konstruksi jalan tol lebih kuat dipengaruhi oleh variabel-variabel pengusahaan KPBU jalan tol lainnya, yaitu skema pengusahaan, maturitas manajemen proyek, biaya konstruksi, panjang jalan, skema finansial kontraktor, hubungan korporasi BUJT-korporasi, dan skema pengadaan tanah.

Evaluation of Procurement Process on Ethanol Factory Construction – Lampung Roi Milyardi; Indra Koheru; Cindrawaty Lesmana
Journal of Innovation and Community Engagement Vol. 1 No. 1 (2021)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jice.v1i1.3366

The procurement process in construction is quite complicated with its various methods. One of them, design and construct contracting, which often used, is one that has an advantage of saving time and money. However, for companies without sufficient capabilities to carry out procurement, the design construct contract method also requires expert assistance in the process. To meet the construction procurement process requirements, one workable solution is that the company collaborates with a university for its factory construction development. The relevant academicians have expertise to solve problems in procurement process. The academician team was collecting appropriate data and then evaluating it to give suggestions on the construction procurement process. The method used was a simple comparison of the price proposed by the contractor to the owner estimate which was then calculated based on the Indonesian Regulation by the Minister of Public Works and Housing no. 28/PRT/M/concerning the unit price analysis that used as reference. Prices for materials, tools, and wages referred from Indonesian unit price journal references. The result of the evaluation was to determine the contract winner based on price and technical design aspects within company budget. During the evaluation process, clarification was made regarding the proposed design, construction method and quality of the proposed material to match the technical aspects of the design. The price evaluation process which was carried out in a short term has assisted the company in carrying out its construction procurement process. In the long run, cooperation can be developed in the form of human resource training so that the company can develop independently in carrying out the construction procurement process. Keywords: construction procurement, community service, owner estimate

Analysis of Benefits and Barriers Factors in the Implementation of Building Information Modeling (BIM) in Building Construction for Contractor Gustian, Egi; Milyardi, Roi; Lesmana, Cindrawaty
Jurnal Teknik Sipil dan Perencanaan Vol 24, No 2 (2022)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v24i2.37026

Abstract. Everywhere in the world, especially as the fourth industrial revolution begins, technological advancements are being discussed. This technological advancement also affects the building industry, one example being the use of Building Information Modeling (BIM) technology. All technologies, particularly BIM, will advance and redevelop throughout this Covid-19 epidemic. BIM has benefits and barriers to implementation that increase with its development and sophistication, particularly for contractors. Therefore, it's important to research the advantages of using BIM as well as the barriers for contractors. The purpose of this study is to analyze the benefits and inhibiting factors in the implementation of BIM in building construction for contractor. This research was conducted by using literature from previous studies to find out what statements are the benefits and barrier factors in the implementation of BIM 4D for contractors with top and middle qualifications. Then the statement was compiled into a questionnaire and distributed to respondents via online platform. In addition to obtaining the mean value for each research variable, the questionnaire survey responses were processed utilizing validity and reliability tests. The findings of this study show that the benefits of BIM implementation for top contractors include better and more appealing building design or modeling, more accurate documentation, as well as better and more attractive building design or modeling for middle contractors. The lack of training and education in BIM itself is the main obstacle to its implementation for these top contractors, while the cost of licensing BIM software or apps is fairly high for midrange contractors.

PEMETAAN RISIKO MULTIBENCANA ALAM PADA INFRASTRUKTUR JALAN Jaya Iskandar; Roi Milyardi; Cindrawaty Lesmana
JMTS: Jurnal Mitra Teknik Sipil Volume 6, Nomor 2, Mei 2023
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v6i2.23298

Road infrastructure as a means of transportation has an important role in the economy of a region. The ability of road infrastructure to serve the community is not only needed under normal conditions but is also needed when a disaster occurs as part of disaster resilience. One of the approaches that can be used in assessing disaster preparedness is mapping disaster risk on the road sections under review. In this research, a case study of disaster risk mapping was carried out on the Pasauran-Sp. Labuan - Cibaliung and Citereup-Tanjung Lesung, Banten Province which is divided into 11 road sections. Disaster risk mapping on roads in Padegelang is very much needed with disaster-prone locations making it very prone to disasters, especially floods, tsunamis, earthquakes, and landslides. The aim of this study is to map disaster risk based on the value of the multi-disaster risk index (floods, tsunamis, earthquakes, and landslides) on the Pasauran-Sp. Labuan-Cibaliung and Citereup-Tanjung Lesung. Disaster risk mapping is carried out using the procedures of Director General of Highways Circular Letter no. 12/SE/Db/2014 concerning Guidelines for risk analysis of natural disasters affecting roads and bridges. With this disaster risk map, it is hoped that it will be useful for stakeholders to make decisions related to disaster mitigation on these roads. The results of the multi-disaster disaster risk index values obtained from this study in sections 9, 10 and 11 have a low risk level, in sections 1,3,5 and 6 have a medium risk level, and in sections 2,4,7 and 8 have a high level of risk

Studi Eksperimental dan ANalitis Sambungan Batang Tarik Tipe Kegagalan Geser Baut Noek Sulandari; Roi Milyardi; Yosafat Aji Pranata
Jurnal Teknik Sipil Vol 13 No 1 (2017): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v13i1.1430

Sambungan baut pada batang tarik baja memiliki kapasitas dengan macam-macam tipekegagalan. Kapasitas sambungan baut pada batang tarik baja dapat ditentukan melalui analisiskapasitas dan kegagalan sambungan. Pada analisis kapasitas dan kegagalan sambungan batangtarik baja, kapasitas sambungan batang tarik baja yang ditentukan dihasilkan berdasarkan banyakparameter struktur diantaranya profil dan mutu batang tarik, tebal dan mutu pelat penyambung,dan juga tebal dan mutu baut sambungan. Kapasitas sambungan batang tarik baja hasil analisiskapasitas dan kegagalan sambungan seringkali memiliki nilai yang lebih rendah dari kapasitassambungan dalam kondisi riil. Pada penelitian ini dilakukan perbandingan kapasitas sambunganbatang tarik profil siku 30x30x3mm bermutu BJ-37 disambung dengan pelat mutu BJ-37 tebal3mm dan baut penyambung diameter 8 mm dengan mutu A307 melalui studi analisis kapasitas dankegagalan dan studi eksperimental dengan tipe kegagalan geser. Pada studi analisis kapasitas dankegagalan sambungan batang tarik baja diperoleh kapasitas sambungan sebesar 18,9 kN dengantipe kegagalan geser. Pada studi eksperimental dilakukan pengujian tarik sambungan baja batangtarik dengan 3 buah benda uji, didapatkan nilai rata-rata kapasitas ultimit sebesar 22,63 kN danmengalami kegagalan geser baut pada ketiga benda uji. Kesimpulan yang dapat diambil daripenelitian ini adalah baik hasil perhitungan secara analitis dan pengujian eksperimental dilaboratorium menunjukkan trend yang baik dan sama. Benda uji didesain berdasarkan perhitungananalitis untuk mengalami kegagalan geser pada baut, hasil pengujian eksperimental untuk 3 (tiga)benda uji seluruhnya menunjukkan pola kegagalan geser baut. Kekuatan nominal tarik rencana(Rn) dari hasil studi analitis dengan beban ultimit hasil studi eksperimental memiliki perbedaansebesar 16,48 % dengan hasil eksperimental lebih tinggi. Melalui penelitian ini diharapkan dapatmenjadi media pembelajaran untuk mengetahui salah satu jenis kegagalan pada sambungan batangtarik yaitu kegagalan geser baut, memperoleh gambaran perbandingan hasil perhitungan analtisyang mengacu pada standar perencanaan yang berlaku serta hasil pengujian eksperimental dilaboratorium

Perbandingan Karakteristik Manajemen Risiko Konstruksi Pada Kontraktor Bumn Dan Swasta Roi Milyardi
Jurnal Teknik Sipil Vol 16 No 1 (2020): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v16i1.2399

Adanya peningkatan volume pekerjaan konstruksi terkait program pemerintah Indonesia dalam pembangunan infrastruktur, membuat sektor konstruksi mengalami pertumbuhan yang cukup besar dibanding sektor ekonomi lainnya, dimana entitas yang mendominasi adalah kontraktor BUMN dan kontraktor swasta. Perbedaan utama kontraktor BUMN dan swasta tersebut adalah aspek finansial. Dalam usaha pendanaan investor, langkah IPO (Initial Public Offering) dan strategi perusahaan, terutama manajemen risiko menjadi hal penting untuk meyakinkan investor untuk berinvestasi pada perusahaan masing-masing. Oleh karena itu, pada penelitian ini bertujuan membahas perbandingan karateristik identifikasi risiko dan respon risiko dalam manajemen risiko perusahaan pada kontraktor BUMN dan kontraktor swasta yang memiliki manfaat pada pengambilan keputusan investor sektor konstruksi. Analisis dilakukan dengan analisis perbandingan kualitatif sederhana manajemen risiko pada studi kasus 4 kontraktor BUMN dan 4 kontraktor swasta yang telah melakukan IPO. Hasil analisis menyimpulkan bahwa pada identifikasi risiko, kontraktor BUMN memiliki top risk secara umum pada risiko-risiko di tingkat perusahaan pada hirarki proses konstruksi, sementara pada kontraktor swasta secara umum berfokus pada risiko-risiko di tingkat proyek pada hirarki proses konstruksi. Perbedaan signifikan yang ditemukan adalah pada perencanaan respons terhadap risiko persaingan usaha, dimana kontraktor BUMN berfokus pada tingkat perusahaan dan memanfaatkan hubungan entitas dengan pemerintah, sementara kontraktor swasta berfokus pada tingkat meningkatkan kuantitas dan kualita proyek yang dikerjakan.

Comparative Analysis of Earthquake Loss Estimation Using HAZUS Method with Modified Building Capacity Curve Sugianto, Joesack Renaldi; Lesmana, Cindrawaty; Milyardi, Roi
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 9, No 2 (2024): EDISI SEPTEMBER 2024
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v9i2.5676

Based on the World Bank publication in 2019, one of the strategies to improve disaster financial resilience is the availability of loss estimation data. As one of the vulnerable countries affected by earthquake disasters, Indonesia does not yet have a widely used pre-disaster estimation model. Model adoption is one of the strategies used to improve disaster resilience in Indonesia. The HAZUS method is a model FEMA (Federal Emergency Management Agency) developed to estimate earthquake losses in the US. The adoption process in Indonesia requires adjustments to the EDP (Engineering Demand Parameter) used in the HAZUS model. The EDP in the HAZUS model consists of capacity curves, fragility curves, and repair cost coefficients. The statistics of buildings affected by earthquakes in Indonesia from 2000 to 2020 show that residential houses are the most affected buildings. This study aims to obtain comparative results of the HAZUS model structural element loss estimation with modified data of local capacity curve pushover results in Indonesia. The study was conducted by performing a pushover analysis on a case study of a residential building to obtain a capacity curve. In this study, the EDP analyzed was only the EDP of the capacity curve. The case study was conducted at housing cluster X in West Bandung Regency, West Java, using house type T94/120 as the case study structure. The results of the capacity curve comparison show that the capacity curve of the local house from the pushover analysis has lower stiffness and ductility. The comparison of loss estimation for single hazard scenarios shows that the modified curve method has the most conservative loss estimation than HAZUS in the hazard of earthquake return periods of 100, 250, 500, and 750 years. The annual loss estimation shows that the modified capacity curve provides the most conservative or 37.5% larger in annual loss estimation.

Perbandingan Biaya, Durasi, dan Kerugian Pendapatan Operasional Metode Perkuatan Struktur Kolom Beton Bertulang Gedung Pabrik Suryamisena, Camelia Rafella; Milyardi, Roi; Lesmana, Cindrawaty
Jurnal Rekayasa Konstruksi Mekanika Sipil Vol 7 No 2 (2024): Volume 7 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Katolik Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/jrkms.v7i2.3983

Perkuatan struktur kolom beton bertulang pada gedung pabrik memiliki pengaruh pada kegiatan operasional, secara khusus pendapatan dari pabrik. Pada pemilihan metode perkuatan pada pabrik, estimasi kerugian pendapatan perlu dipertimbangkan selain kriteria umum lainnya. Studi ini bertujuan mendapatkan perbandingan metode perkuatan kolom beton bertulang antara metode steel jacketing (SJ) dan penggunaan carbon fiber reinforced polymers (CFRP) pada gedung pabrik berdasarkan aspek biaya, durasi pekerjaan, dan dampak kerugian pendapatan operasional pabrik. Studi kasus dilakukan pada fasilitas gedung pabrik di Provinsi Lampung, dengan 2 kolom yang akan diperkuat hasil analisis tahapan studi sebelumnya. Analisis biaya dan durasi dilakukan mengacu Analisis Harga Satuan Pekerjaan (AHSP) PerMen PUPR No.28/PRT/M/2016 dan harga satuan daerah pada wilayah Provinsi Lampung. Estimasi kerugian operasional pendapatan (YLOSi) pabrik dikalkulasi melalui pendekatan model HAZUS. Hasil penelitian menunjukkan pada aspek biaya, metode CFRP memiliki biaya yang lebih besar dengan selisih 37,02% dibandingkan metode SJ. Pada aspek durasi pelaksanaan, metode CFRP memiliki durasi yang lebih singkat dengan selisih 2 hari (40,00%) dibandingkan metode SJ. Pada aspek YLOSi pabrik menunjukkan metode CFRP memiliki estimasi kerugian lebih kecil dengan selisih 40,00% dibandingkan metode SJ. Namun pada total biaya tanggungan (biaya pelaksanaan dan estimasi kerugian), metode CFRP memiliki nilai lebih besar 24,28% dibandingkan metode SJ.

Faktor Utama Keterlambatan Pembayaran Dalam Proyek Perumahan Subsidi dan Komersial Verel, Bunga Olivia; Milyardi, Roi; Lesmana, Cindrawaty
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 7 No. 1 (2024): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v7i1.5244

In the implementation of housing development, the problem of late payment delays is a common issue encountered in commercial and subsidized housing projects during construction. These delays impact the timely completion and lead to disputes among the involved parties, which include owners, contractors, and subcontractors. This study aims to analyze the primary factors contributing to late payment in construction projects, specifically in commercial and subsidized housing. The analysis is conducted from the perspective of the owner, contractors, and subcontractors. The study involves six owner respondents, six contractor respondents, and four subcontractor respondents. The survey results were analyzed using the Analytical Hierarchy Process (AHP) to assess the significance of various factors influencing payment delays in both housing schemes. The analysis results indicate that financial issues with the owner's company are crucial factors from the owner's perspective in causing payment delays in both commercial and subsidized housing projects. A major challenge faced by contractors is the lack of capital availability, which can lead to delays that affect all involved parties. Meanwhile, discrepancies between job specifications not following the contract from the subcontractor's viewpoint highlight the importance of clear communication and rigorousness. All parties involved in housing projects need to improve financial management, enhance capital procurement, and tighten the supervision of contract implementation. By identifying key factors, adopting best practices can help mitigate the risk of payment delays and improve efficiency in future housing project implementations, whether commercial or subsidized.

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