Economic Comparison of the Concrete Structural Work for the System Form and the Truss Deck

The reduction of construction duration and cost is two of main success factors in the modern construction industry. Since reinforced concrete is the most economical material for construction, the large-scale form-work of concrete is also related to the competitiveness of construction method. Thus, the application of appropriate form-work system is one of key factors to reduce the construction cost, improve the quality of the finished concrete, shorten the construction period, and reduce the form-work collapse during the construction. The study conducted the case study to identify the cost differences between the steel-wire truss deck system and the table system form-work system. To compare the construction cost of two different form-work methods, the study estimated the total price for the form-work module of 14.4m×4.8m with material quantities. This study identified that the slab cost of truss deck form-work system was 15% lower than the table system form-work even though the combination form-work cost of beam and slab for the truss desk was 19% higher than the combination form-work costs of system form-work. In addition, the study identified that the truss-deck form-work system also required the additional steel reinforcement of 77% compared to the table system form-work. Finally, the study concluded that the table system form-work could reduce the total construction costs of 15% through lowering the form-work cost of beam and slab, and steel reinforcement