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Journal : Rekayasa Sipil

Analisis Produktivitas Alat Berat dan Pekerja di Pekerjaan Pengecoran Lantai Spillway pada Proyek Pembangunan Bendungan Mery Komalasari; Dinda Fardila; Dedy Dharmawansyah; Eti Kurniati
Rekayasa Sipil Vol. 17 No. 3 (2023): Rekayasa Sipil Vol. 17 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.03.5

Abstract

Productivity is one of the keys to determining the factors that affect competitiveness in construction projects, including the productivity of workers and heavy equipment for spillway casting work at Dam Development. The aim of the research is to analyze productivity and factors affecting heavy equipment and workers. This research using quantitative descriptive calculation methods, and observation in field time study. The results of the data calculations show that the productivity value of a concrete pump is 167.491 m3/day, the productivity of mixer trucks is 46.305 m3/day/unit, and the productivity of workers is 13.790 m3/day/person. Factors that affect heavy equipment productivity are weather, work time efficiency, and material or payload. As well as factors that affect worker productivity, there are the weather, worker time efficiency, foundry location, and the number of workers.
Analisis Faktor Penyebab Contract Change Order dan Pengaruhnya Terhadap Pelaksanaan Proyek Konstruksi Jalan dan Jembatan Dinda Fardila; M. Syarif Afandy; Eti Kurniati
Rekayasa Sipil Vol. 17 No. 3 (2023): Rekayasa Sipil Vol. 17 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.03.6

Abstract

The Contract Change Order problems in construction projects significantly influence the project’s success. Therefore, analysis related to the factors causing the occurrence of CCO and its effect on the implementation of construction projects is expected to be used as a reference by related parties for future project implementation. This research used quantitative and descriptive methods to find out which factors caused CCO and their effects. The study was carried out on one road acceleration project in NTB Province with the owners, consultants, and contractors who were respondents to this research. There are 14 variables in the causative factor of CCO and two variables in the influence that occurs. "Additional Needs for Functional and Maintenance" becomes the dominant causative factor, and "Cost Overruns" becomes the variable with the highest effects.