M. Agung Wibowo
Jurusan Teknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275

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ANALISIS PROSES PENGADAAN MATERIAL PROYEK KONVENSIONAL DAN PROYEK ENGINEERING PROCUREMENT CONSTRUCTION (EPC) (Studi Kasus : Proyek Pembangunan Gunawangsa MERR Apartement Surabaya dan Proyek EPC 1 Banyu Urip Cepu) Moh. Nur Sholeh; Shifa Fauziyah; M. Agung Wibowo; Frida Kistiani
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Nowadays, construction project has been progressing well, it uses new technologies, materials and contract models. A new contract model is EPC (Engineering, Procurement and Construction). At Conventional contract, commonly used in highrise building projects which involves many participants such as owner, design consultant, general contractor, and management construction consultant. While, Engineering, Procurement and Construction (EPC) project involves general contractor only. In EPC project general contractor is the main actor in the engineering process, procurement until construction. EPC Contract is suitable to build facility of processing oil and gas. This research uses the project of Gunawangsa MERR Apartment and EPC 1 Banyu Urip as case studies of conventional project and EPC’s project. The goals are to analyze procurement organization and procurement material process at conventional project and EPC project, also to find out the weakness and strength of material procurement process from the both projects. The procurement process of materials on EPC projects uses the Material Tracking System (MTS) to manage the procurement process of materials because of the complexity of the project. In addition, the project EPC uses materials and equipments that have special specifications and are not available in the market so we need a system to manage the process of ordering, fabrication until materials can be delivered on time so it will not make any delays in the project. Because the material procurement process in EPC projects require time for fabrication so that procurement of materials has been performed on engineering phase. Therefore, the EPC project has its own material procurement organization which is directly supervised by a procurement manager. Where any personnel involved have a clear task.Meanwhile , the conventional material procurement project carried out by the logistics which is directly supervised by a project manager for the material procurement process which is much more simple when compared with Material Tracking System in EPC. In addition, the materials of conventional project are available in the market so that procurement is not through a specific manufacturing process and is often performed on construction phase. However, because the procurement process is undertaken during construction so that when there is a problem or difficulty in getting material it  will result any  project delays.
KAJIAN PEMILIHAN PEKERJAAN BASEMENT PADA BANGUNAN BERTINGKAT TINGGI MENGGUNAKAN METODE TOP DOWN SEBAGAI INOVASI METODE PELAKSANAAN (STUDI KASUS : PROYEK SUDIRMAN SUITES HOTEL AND APARTMENT JAKARTA) Nopirin Abliataniaga Bintang; Mahayekti Bagaskara; M. Agung Wibowo; Arif Hidayat
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

This paper explains on studies of top down basement construction method on high rise building as innovation of construction method. Nowadays, in the world of construction there are varies of innovations; one of them is top down method for basement construction. Sudirman Suites Hotel and Apartment is a project of 22 levels building and 5 levels of basement located in the middle of large city where there are already many buildings and activities surrounding. PT. Wika Gedung as a main contractor decided to apply top down method for 5 levels of basement with 24,4 m deep. As comparation there is Menara Sentraya project on Blok-M, which conventionally constructed with bottom up method. This research uses Sudirman Suites Hotel and Apartment’s site manager’s correspondency as primary data. Shop drawings, proposed budget, time schedule and site plan for the secondary data. Data analyzation method is to compare primary data on both project and uses secondary data for validation. Main reason for top down method for basement construction is the limited project area, only 4792.331 m2 and 2769.15 m2 for the excavation zone, moreover, open cut is not feasible to excavate 24,4 m deep without any reinforcements.
ANALISIS KONTRAK BERBASIS KINERJA (KBK) DAN KONTRAK KONVENSIONAL STUDI KASUS: PROYEK PEMBANGUNAN JALAN KBK SEMARANG-BAWEN DAN PROYEK PEMBANGUNAN JALAN TOL SEMARANG-SOLO Indra Wijaya; Vanessa Nurmalita; M. Agung Wibowo; Rudi Yuniarto Adi
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Construction sector in Indonesia, especially for road construction projects are progressing very rapidly in recent years. Indonesia is intensively implementing the road construction project, from new road construction, road maintenance and repairs. Road construction sector in Indonesia is mostly using the conventional contract system, with a lump sum or unit price. In this conventional contract service user must fully bear the risks associated with the quality of work that is to be maintained. It required an innovative method in order to contract the service user and the service provider can be better off, for example with the system performance based contracting (PBC). This study will analyze the differences between the PBC system and conventional system by comparing the life cycle project, project coordination line, the construction, the maintenance period, and the budget plan contract. The research method used was a descriptive analytical methods and data collection through direct field observations and interviews with project case studies Construction Project Semarang-Bawen Road with PBC and Construction Project Semarang-Solo Highway. From the results, the fact that the PBC has a single stage system that is not present in the conventional contract there is system maintenance services. At  the PBC system imposed fines ranging from construction period while the conventional system of fines awarded the contract if the contract or is unable to complete the construction work by the duration of time that has been given. At the PBC system there is not planning consultant contracts while the conventional system, there are consultants planning consultant. At the PBC system maintenance is faster than the conventional contract system maintenance. The budget plan contract at the PBC system is higher than the conventional contract system’s budget plan contract.