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Journal : Jurnal Agregate

ANALISA PERBANDINGAN WAKTU PENJADWALAN PROYEK DENGAN METODE CPM (CRITICAL PATH METHOD) DAN PDM (PRECEDENCE DIAGRAM METHOD) (Studi Kasus : Rehabilitasi dan Renovasi Sarana Prasarana SD Negeri Waemasing, Kec. Waesama, Kab. Buru Selatan) Gabriel C. A. Lesbasa; Meyke Marantika; Nelda Maelissa; Rudi Serang
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

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Abstract

Project delays are a highly unenviable condition. A school project in Waesama Sub-district, Buru Selatan Regency was delayed where 208 days of planning were not achieved, and were realized more than the plan. This study aims to distinguish the duration of the project using CPM and PDM on the project, as well as determine the optimal duration between the two methods. As well as obtaining critical jobs for CPM and PDM. CPM (Critical Path Method) is an AON (Activity on Node) method that only has one constrain, namely FS (Finish to Start). While PDM (Precedence Diagram Method) is an AON (Activity on Node) method that has 4 constrains FS (Finish to Start), SS (Start to Start), SF (Start to Finish), FF (Finish to Finish). The results of this comparative study found that there were differences in activities that were critical, there were also differences in duration after the use of these two methods. Where CPM produces a duration of 203 days, while PDM produces the most optimal duration of 200 days because it saves 8 days more than the duration of project planning. The use of PDM methods were more effective.
PENERAPAN METODE NILAI HASIL PADA PROYEK PEMBANGUNAN GEDUNG PELAYANAN BPKB DIT LANTAS POLDA MALUKU Julia Dewi Leatemia; Lenora Leuhery; Nelda Maelissa
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

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Abstract

The construction of the BPKB Service Building of the Maluku Police Traffic Directorate is planned to be completed in 150 calendar days. But in fact the project experienced addendum 1 on November 2, 2020 because at the time of the field inspection the size of the plan drawing did not match the size in the field, so this project experienced a delay of 27.895%. So that delays in project implementation do not recur, the author's goal is to find out cost and time deviations using the result value method. This method uses basic assumptions to make forecasts so that you have enough time to think about how to deal with problems in the future. Data collection techniques carried out are site surveys, observations, and literature. There are two types of variables, namely the independent variable is time and the dependent variable is cost. The data analysis technique used the result value method. The results of the analysis at week 28 of the cost performance index (CPI) < 1 which means the actual costs (ACWP) incurred are greater than the planned work costs (BCWP) so that the project experiences a cost deviation of Rp. 106,014.970.36 from the value a contract of Rp. 21,701,579,200.00 with a percentage of 0.49% and a time performance index (SPI) < 1 which means the project performance is slower than the planned schedule so that the project experiences time deviations for 200 working days with a weight of 6.5845% from the planning schedule 150 working days. Keywords : Earned Value Method, Schedule Performance Index (SPI), Cost Performance Index (CPI)
Analisis Risiko dengan Menggunakan Metode Domino pada Rehabilitasi dan Renovasi Perpustakaan dan Laboratorium IAIN Ambon Febri Linda Keliola; Nelda Maelissa; Maslan Abdin
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

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Abstract

Construction work can cause Work Accident Risk, therefore the implementation of construction work is required to implement an occupational safety and health (K3) management system at the work site. However, the IAIN Ambon Library and Laboratory Rehabilitation and Renovation project was not implemented. So this study aims to obtain the Dominant Occupational Accident Risk, the causal factors and how to respond to these causal factors. The method used in this study is a semi-quantitative analysis method combined with the domino method. Semi Quantitative Analysis in the form of distributing questionnaires containing a scale of 'likelihood' and 'consequency' values and processed with SPSS, then analyzed with a Risk Matrix while the domino method is used to identify factors causing work accidents. The results obtained: 1. There are 8 Dominant risks (1) Workers are exposed to noise from iron cutting machines, (2) Workers' heads are exposed to wood impact during baking installation, (3) Workers' eyes are exposed to Splashing of Concrete Mixture, (4) Workers' breathing is disturbed due to ceramic cutting dust, (5) Workers are exposed to noise from ceramic cutting tools, (6) Workers' eyes are exposed to splashes from liquid paint, (7) Workers' breathing is disturbed due to ACP cutting dust, (8) Workers are exposed to noise from ACP cutting tools. 2. Factors causing work accidents (1)Lock of control/Management (2) Basic Cause of accident (3) Immediate cause/symptoms (4) Incident (5)Loss. 3.Response to factors causing work accidents, namely (1) Risk Reduction (2) Risk Transfer.
FAKTOR-FAKTOR PENYEBAB KETERLAMBATAN PROYEK RENOVASI DAN PERLUASAN GEDUNG BALAI KARANTINA IKAN AMBON Legion Kopong; Nelda Maelissa; Henriette Dorothy Titaley
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1200

Abstract

Conatruction dealy is acommon problem Which frequently happens in construction industry. The purpose of this study was to indentity and categorize the delays causing factors greatly effecting the fish quarantine center building revavation and expansion project. The Fish quarantine center building renovation project was the object of this study motivated by delays. Futhermore, based on the secondary data obtained, time schedule is entirely used as the duration and normal cost of the project. Then, the Principal Compenent Analysis (PCA) method is applied to be able to find out the main factors causing dealys. Based on the results of the normality test and principal compenent analysis, the factors that effect the delay in the renovation and expansion of the Ambon Fish Quarantine Center Building were the material factors with a total variance of 57.575% including X1.1. Lack of construction materials, X1.2 Material changes in from, function, and specifications, X1.3 Delay in delivery of materials, X1.4 Damage to materials in storage, X1.5 Inccuracy of time.
ANALISA RISIKO PADA PROYEK PEMBANGUNAN GEDUNG AUDITORIUM IAIN KOTA AMBON Tisya Glorya Pelatta; Nelda Maelissa; Henriette Dorothy Titaley; Abraham Tuanakotta
Journal Agregate Vol. 2 No. 1 (2023): Maret
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i1.1202

Abstract

Risk management is an effort to manage risk comprehensively, planned, and structured in a good system to prevent unexpected risks. It may allow the management to expand results by identifiying and analyzing the risk to work accident in the Auditorium building project in a IAIN Ambon. Each  risk in the work phase must be assessed risk professionally. The assessment method used a risk assessment matrix sourced from NHS Highland, which adopted from AS/NZS 1360:2004 Risk Management. Primary data were obtained from interviews and questionnaires.   Furthermore , secondary data were collected through the company’s organizational structure and project work items. In addition, data analysis was carried out through validity and realiability test, and finally, a risk assessment was implemented. The results of this study showed that there were five risk factors; injured/stabbed by risk level of 20 work accident risk variabels, there was obvioposly one medium risk inculuded in the category high risk and 19 other variables involved in the medium risk included in the category high and 19 other variebles invoveld in the medium risk category. In consclusion,strategiees that can be carried out to prevent the risk regaarding to the classification of risk levels, namely elimination, substitution, administation, and personal protecetive Equipment (PPE).
ANALISIS RISIKO PADA PROYEK PEMBANGUNAN GEDUNG LABORATORIUM TERPADU PENDUKUNG BLOK MASELA UNIVERSITAS PATTIMURA Nurhayati Maasily; Octovianus Jamlaay; Nelda Maelissa
Journal Agregate Vol. 2 No. 1 (2023): Maret
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i1.1280

Abstract

Risk management is an effort to manage risk in a comprehensive, planned and structured manner in a good system to prevent unexpected events. It allows management to improve results by identifying and analyzing the risk of work accidents that exist, namely the construction project of Masela Block Supporting Integrated Laboratory, Pattimura University. Each risk of the work phase must be assessed for professional risk management/control. The assessment method applied a risk assessment matrix sourced from NHS Highland which was adopted from AS/NZS 1360:2004 Risk Management. The secondary data obtained for this study consists of the company's organizational structure and project work items. Primary data obtained from observations in the field that is obtained by conducting interviews and distributing questionnaires. The data analysis carried out in this study was a variable test, namely Validity Test and Reliability Test. The next step was the application of risk assessment. The result of this study was that there were 4 risk factors, namely human resources, equipment and work materials, work methods, and working environment. The classification of the risk level from the 29 variables of occupational accident risk, there were two work risks that were included in the high-risk category and the other 27 risks were included in the medium risk category. Based on known risks, a strategy that can be carried out is obtained, namely risk control based on the classification of risk levels, namely Elimination, Substitution, Administration, and Personal Protective Equipment.