The Effects of Buildability Factors on Rebar Fixing Labour Productivity of Beamless Slabs

Abdulaziz M Jarkas


Abstract

 

Buildability is an important factor affecting labour productivity. Nevertheless, a thorough search of the literature revealed a dearth of research into its effects on in situ reinforced concrete construction, especially at the activity levels. Since rebar fixing is an integral trade of this type of construction material, and beamless slabs are amongst the major encountered activities on construction sites, the objective of this research is to explore the buildability factors affecting its rebar fixing efficiency. To achieve this objective, a large volume of fixing productivity data was collected and analysed using the categorical interaction - regression method. As a result, the main and interaction effects of rebar diameter; reinforcement quantity; slab geometry; and reinforcement layer location are determined. The findings show a significant influence of these factors on the fixing operation, which can be used to provide designers and construction managers with feedback on how well the design of this activity considers the requirements of buildability, and the tangible consequences of designers‟ decisions on labour productivity

Keywords

Beamless slabs, Buildability, Categorical interaction-regression, Labour productivity, Rationalisation, Rebar fixing, Standardisation

Full Text

PDF

References

Adams, S. (1989) Practical Buildability, Construction Industry Research and Information Association (CIRIA), Building Design Report

Aiken, L.S. and West, S.G. (1991) Multiple Regression: Testing and Interpreting Interactions, Newbury Park, California: Sage Publications

Aldana, L.F. (1991) Measurement and Analysis of Concrete Formwork and Steel Reinforcement Productivity, MSc Dissertation, Department of Civil Engineering, University of Dundee, Dundee, UK

Allmon, E., Hass, C.T., Borcherding, J.D., and Goodrum, P.M. (2000) 'US construction labour productivity trends, 1970 – 1998', ASCE Journal of Construction Engineering and Management, 126 (2), 97-104 http://dx.doi.org/10.1061/(ASCE)0733-9364(2000)126:2(97)

Alshawi, M. and Underwood, J. (1996) 'Improving the constructability of design solutions through an integrated system', Journal of Engineering, Construction and Architectural Management, 3 (1 & 2), 47-67

Carter, G.R. (1999) Buildability – Effects of Design on Labour Costs, MSc Dissertation, Department of Civil Engineering, University of Dundee, Dundee, UK

Chan, D.W.M. and Kumaraswamy, M.M. (1995) 'A study of the factors affecting construction durations in Hong Kong', Construction Management and Economics, 13, 319-333 http://dx.doi.org/10.1080/01446199500000037

Cheetham, D.W. and Lewis, J. (2001) 'Productivity, buildability, and constructability: is work study the missing link?' Association of Researchers in Construction Management, 17th Annual Conference, University of Salford, 1 (5-7), 271-279

Construction Industry Development Board, CIDB (1995) Buildable Design Appraisal System, 3rd Edition, Singapore

Construction Industry Research and Information Association, CIRIA (1999) Standardisation and Pre-assembly: Adding Value to Construction Projects, CIRIA Report No. 176

Construction Industry Research and Information Association, CIRIA (1983) Buildability: An Assessment, CIRIA Publications, Special Report No. 26

Dong, C.J. (1996) Effects of Design on Buildability, MEng Thesis, Nanyang Technological University, Singapore

Ferguson, I. (1989) Buildability in Practice, Mitchell's Professional Library, London, UK

Fischer, M. and Tatum, C.B. (1997) 'Characteristics of design-relevant constructability knowledge', ASCE Journal of Construction Engineering and Management, 123 (3), 253-260 http://dx.doi.org/10.1061/(ASCE)0733-9364(1997)123:3(253)

Friedrich, R.J. (1982) 'In defence of multiplicative terms in multiple regression equations', American Journal of Political Science, 26, 797-833 http://dx.doi.org/10.2307/2110973

Griffith, A. (1987) 'An investigation into factors influencing buildability and levels of productivity for application to selecting alternative design solutions – a preliminary report', Managing Construction Worldwide, Chartered Institute of Building (CIOB), 2, 646-657

Gujarati, D.N. (1995) Basic Econometrics, McGraw-Hill, New York

Hardy, M.A. (1993) 'Regression with dummy variables', Sage University Papers, QASS No. 07-093, Sage Publications, Newbury, California

Hidayatalla, N.A. (1992) A Study of Labour Productivity on Reinforcement Steel Fixing, MSc Dissertation, Department of Civil Engineering, University of Dundee, Dundee, UK

Horner, R.M.W. and Duff, R. (2001) More for Less', A Contractor's Guide to Improving Productivity in Construction, Construction Industry Research and Information Association, CIRIA, Londno

Horner, R.M.W. and Zakieh, R. (1996) 'Characteristic items – a new approach to pricing and controlling construction projects', Construction Management and Economics, 14, 241-252 http://dx.doi.org/10.1080/014461996373494

Horner, R.M.W., Talhouni, B.T., and Thomas, H.R. (1989) 'Preliminary results of major labour productivity monitoring programme', proceedings of the 3rd Yugoslavian Symposium on Construction Management, Cavtat

Hyde, R. (1996) 'Buildability as a design concept for architects: a case study of laboratory buildings', Journal of Engineering, Construction and Architectural Management, 3 (1 & 2), 45-56

Jaccard, J. and Turrisi, R. (2003) 'Interaction effects in multiple regression', 2nd Edition, Series: Quantitative Applications in the Social Sciences, A Sage University paper, Vol. 72, Sage Publications

Jaccard, J., Turrisi, R., and Wan, C.K. (1990) Interaction Effects in Multiple Regression, Newbury Park, California: Sage Publications

Jarkas, A.M. (2005) An Investigation into the Influence of Buildability Factors on Productivity of in situ Reinforced Concrete Construction, PhD Thesis, Department of Civil Engineering, University of Dundee, Dundee, UK

Jergeas, G. and Put, J. (2001) 'Benefits of constructability on construction projects', ASCE Journal of Construction Engineering and Management, 127 (4), 281-290 http://dx.doi.org/10.1061/(ASCE)0733-9364(2001)127:4(281)

Kim, J. and Feree, G. (1981) 'Standardisation in causal analysis', Sociological Methods and Research 10 (2), 187-210

Lal, H. (1999) The Use of Characteristic Productivity Modelling in the Improvement of Site Performance and the Evaluation of Delay and Disruption Claims, PhD Thesis, Department of Civil Engineering, University of Dundee, Dundee, UK

Lam, P., Chan, A, Wong, F.K., and Wong, F.W. (2007) 'Constructability rankings of construction systems based on the analytical hierarchy process', ASCE Journal of Construction Engineering and Management, 13 (1), 36-43

Lam, P. and Wong, F.W. (2009) 'Improving building project performance: how buildability benchmarking can help', Construction Management and Economics, 27 (1), 41-52 http://dx.doi.org/10.1080/01446190802570498

Lawrence, C.H. (1992) Regression with Graphics, Brooks/Cole, Pacific Grove, Calif

Moore, D. (1996a) 'Buildability, prefabrication, rationalisation and passive buildings in the UK', Association of Researchers in Construction Management, 12th Annual Conference and Annual General Meeting, Conference Proceedings, Sheffield Hallam University, 1, 93-100

Moore, D. (1996b) 'Buildability assessment and the development of an automated design aid for managing the transfer of construction process knowledge', Journal of Engineering, Construction and Architectural Management, 3 (1 & 2), 29-46

Munshi, A.H. (1992) Influence of Wall Panel Characteristic on the Productivity of Brick Layers, PhD Thesis, Department of Civil Engineering, University of Dundee, Dundee, UK

Nima, M.A., Abdul-Kadir, M.R., Jaafar, M.S., and Alghulami, R.G. (2002) 'Constructability concepts in West Port Highway in Malaysia', ASCE Journal of Construction Engineering and Management, 128 (4), 348-356 http://dx.doi.org/10.1061/(ASCE)0733-9364(2002)128:4(348)

Noor, I. (1992) A Study of the Variability of Labour Productivity in Building Trades, PhD Thesis, Department of Civil Engineering, University of Dundee, Dundee, UK

O'Connor, J.T. and Victoria, S.D. (1988) 'Constructability improvement during field operations', ASCE Journal of Construction Engineering and Management, 114 (4), 548-564 http://dx.doi.org/10.1061/(ASCE)0733-9364(1988)114:4(548)

O'Connor, J.T., Larimore, M.A., and Tucker, R.L. (1986) 'Collecting constructability improvement ideas', ASCE Journal of Construction Engineering and Management, 112 (4), 463-475 http://dx.doi.org/10.1061/(ASCE)0733-9364(1986)112:4(463)

O'Connor, J.T., Rusch, S.E., and Schulz, M.J. (1987) 'Constructability concepts for engineering and procurement', ASCE Journal of Construction Engineering and Management, 113 (2), 235-248 http://dx.doi.org/10.1061/(ASCE)0733-9364(1987)113:2(235)

Poh, P. and Chen, J. (1998) 'The Singapore buildable design appraisal system: a preliminary review of the relationship between buildability, site productivity and cost', Construction Management and Economics, 16 (6), 681-692 http://dx.doi.org/10.1080/014461998371971

Pulaski, M.H. and Horman, M.J. (2005) 'Organizing constructability knowledge for design', ASCE Journal of Construction Engineering and Management, 131 (8), 911-919 http://dx.doi.org/10.1061/(ASCE)0733-9364(2005)131:8(911)

Saghatforoush, E., Hasim, S., Jaafar, M., and Abdul Kadir, M. (2009) 'Constructability implementation among Malaysian building contractors', European Journal of Scientific Research, 29 (4), 518-532

Salim, M., and Bernold, L. (1994) 'Effects of design-integrated process planning on productivity in rebar placement', ASCE Journal of Construction Engineering and Management, 120 (4), 720-737 http://dx.doi.org/10.1061/(ASCE)0733-9364(1994)120:4(720)

Sanford, W. (1985) Applied Linear Regression, 2nd Edition, John Wiley & Sons

Sincich, T., Levine, D.M., and Stephan, D. (2002) Practical Statistics by Example using Microsoft– Excel and Minitab–, 2nd Edition, Prentice Hall, Upper Saddle River, New Jersey, USA

Song, Y. and Chua, D. (2006) 'Modeling of functional construction requirements for constructability analysis', ASCE Journal of Construction Engineering and Management, 132 (12), 1314-1326 http://dx.doi.org/10.1061/(ASCE)0733-9364(2006)132:12(1314)

Talhouni, B.T. (1990) Measurement and Analysis of Construction Labour Productivity, PhD Thesis, Department of Civil Engineering, University of Dundee, Dundee, UK

Trigunarsyah, B. (2004) 'Constructability practices among construction contractors in Indonesia', ASCE Journal of Construction Engineering and Management, 130 (5), 656-669. http://dx.doi.org/10.1061/(ASCE)0733-9364(2004)130:5(656)

Trigunarsyah, B. (2007) 'Project designers' role in improving constructability of Indonesian construction projects', Construction Management and Economics, 25 (2), 207-215

Tucker, R.L. (1986) 'Management of construction productivity', ASCE Journal of Management and Engineering, 2 (3), 148-156 http://dx.doi.org/10.1061/(ASCE)9742-597X(1986)2:3(148)

Williamson, M.T. (1999) Buildability – The Effect of Design Complexity on Construction Productivity, MSc Dissertation, Department of Civil Engineering, University of Dundee, Dundee, UK

Article Metrics

Metrics Loading ...

Metrics powered by PLOS ALM