Study on Performance of Different Reinforced Concrete Structural Systems for Supporting Swimming Pool
Keywords:
Band Beam, Beam-Slab, Flat Slab, Maximum Crack Width, Maximum Deflection, Maximum Stress, Swimming poolAbstract
This study aims to compare behavior of different concrete structural systems for supporting swimming pool under the service load through the use of CSI ETABS software. The study started by comparing between on-site behavior of actual structure and the analyzed behavior. The model was then calibrated and subsequently applied to analyze behavior of various structural systems (e.g., Beam-Slab, Band Beam, Drop Panel, and Flat Slab). CSI SAFE software was applied to calculate the structural behavior of different floor systems. The comparison was done regarding the structural performance, worthiness, as well as cautions for design and construction. The results could be used as information for a suitable selection of structural system supporting swimming pool. It was found that the computational model applied in this study could predict deflections of slabs and beams in beam-floor system with an average discrepancy of 11.50 % and 10.18 %, respectively. When applying similar numerical model to simulate other structural systems by CSI SAFE, it was found that maximum deflection, maximum stress, and maximum crack width were higher in Band Beam, Drop Panel, and Flat Slab systems. As a result, one must be cautious on sufficient provision of reinforcement in the area with high stress. Additional steel mesh should also be provided in the area with high level of crack width. However, despite these additional requirements, it was found that the use of Flat Slab system can save cost of concrete formwork, and the duration of construction can also be shortened.
References
[2] British Standard Eurocode 8007, 1987, Design of concrete structures for retaining aqueous liquids (BS 8007:1997), British Standards Institute, London, pp.1-150
[3] ACI Committee 318, 2014, Building code requirements for structural concrete (ACI318- 14) and commentary (ACI318R-14), American Concrete Institute. Farmington Hill, MI, pp. 63-235
[4] Design and construction team, Office of the basic education commission of Thailand, Cost Reference for construction material and labor for the fiscal year 2015/2016, Bureau of trade and economic indices, Ministry of commerce, pp. 1 – 90. (in Thai)
[5] Thai government procurement office, 2007, Details of calculation for labor cost and operation cost per unit, The Comptroller General’s Department (CGD), pp. 1–81. (in Thai)
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