Apif M. Hajji, R.M. Sugandi, M.N. Fatrianis
The purpose of this study was to determine the effect of using work zone, the number of workers, work volume, and working hours on productivity of the upper-structure works. The works includes columns, beams, and floor slabs of high-rise buildings. The productivity rate will be conducted by using multiple linear regression technique. The results show that (1) the average productivity of column formwork is 0.086 m3/hour, column reinforcement work is 0.042 m3/hour, scaffolding is 4.309 m3/hour, beam formwork is 0.097 m3/hour, beam reinforcement work is 0.032 m3/hour, slab formwork is 0.153 m3/hour, and floor slab reinforcement work is 0.019 m3/hour, (2) the effect of using work zone, number of workers, and working hours on the productivity of the upper structure work is 69.9%, (3) the number of workers and the volume of work have a positive effect, that if the value increases it will increase the productivity. The duration of work has a negative effect, which means if the value increases, it will reduce productivity rate. © 2024 Author(s).
Civil Engineering Department, Universitas Negeri Malang, Jl. Semarang no. 5, Malang, Indonesia