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Jarkas, A M (2010) The influence of buildability factors on rebar fixing labour productivity of beams. Construction Management and Economics, 28(05), 527–43.

  • Type: Journal Article
  • Keywords: reinforced concrete beams; labour productivity; buildability; rebar fixing; characteristic bar diameter
  • ISBN/ISSN: 0144-6193
  • URL: https://doi.org/10.1080/01446191003703482
  • Abstract:
    Buildability is one of the most important factors affecting construction labour productivity. Nonetheless, an extensive search of the literature revealed a dearth of research into its effects on in situ reinforced concrete construction, especially at the rebar fixing trade level. Buildability factors affecting rebar fixing labour productivity of major structural elements, such as foundations, columns, walls, beams and slabs, are yet to be investigated and quantified. In comparison with the other constituents of the reinforced concrete frame, rebar fixing in beams is one of the most labour-intensive and time-consuming activities, therefore, the objective of this research is to quantify the effects and relative influence of buildability factors on fixing labour productivity of beams. To achieve this objective, a large volume of productivity data was collected and analysed using the categorical interaction-regression method. As a result, the effects of the variability of beam sizes, rebar diameter, stirrups diameter, reinforcement quantity, beam dimensions, and span geometry are determined. The findings show a significant influence of these factors on the labour efficiency of the fixing operation, which may be used to provide designers and construction managers with feedback on how well the designs of this activity consider the requirements of buildability, and the consequences of designers’ decisions on the labour productivity of the operation. In addition, a set of recommendations are presented, which upon implementation, can improve the buildability level of this activity, thus translate into higher labour productivity and more efficient utilization of resources.

Lingard, H C, Francis, V and Turner, M (2010) Work–family enrichment in the Australian construction industry: implications for job design. Construction Management and Economics, 28(05), 467–80.

Marrero, M and Ramirez-De-Arellano, A (2010) The building cost system in Andalusia: application to construction and demolition waste management. Construction Management and Economics, 28(05), 495–507.

Ness, K (2010) The discourse of ‘Respect for People’ in UK construction. Construction Management and Economics, 28(05), 481–93.

Olawale, Y A and Sun, M (2010) Cost and time control of construction projects: inhibiting factors and mitigating measures in practice. Construction Management and Economics, 28(05), 509–26.

Ross, N, Bowen, P A and Lincoln, D (2010) Sustainable housing for low-income communities: lessons for South Africa in local and other developing world cases. Construction Management and Economics, 28(05), 433–49.

Tuuli, M M, Rowlinson, S and Koh, T Y (2010) Control modes and mechanisms in construction project teams: drivers and consequences. Construction Management and Economics, 28(05), 451–65.