Main Article Content
Abstract
This paper investigates the effects of construction errors during the implementation of reinforced concrete T-beams. These errors are classified into two main sections. The first focuses on the position and ratio of reinforcing bars, while the other is related to the concrete strength. A total of ten specimens of T-beams were tested to assess the effect of the possible defects in the construction sites, viz. impact of misplacement of slab reinforcement, irregular arrangement of slab reinforcement, the change in bar diameter of slab reinforcement and the effect of casting method of concrete on the structural behavior of T-beam sections. The results indicated that the faulty placement of slab reinforcement leads to a lower bending moment capacity of the slab (brittle behavior) and the steel strain of slab decreases as the height of slab reinforcement decreases. The irregularity of the reinforcing bars in concrete slab affects the ultimate load carrying capacity of the slab. Also, it was found out that well-arranged distribution of reinforcement improves the ductile behavior of the slab and reduces the corresponding deflections.
Keywords
Article Details
References
- ACI Committee Report 224.1R-93 (1993), Causes, evaluation and repair of cracks in concrete structures (ACI 224.1R-93). American Concrete Institute Journal 1-22.
- Al Khuzaie H.M. Atea R.S. (2018). Investigation of torsional behavior and capacity of reactive powder concrete (RPC) of hollow T-beam. J. Mater. Res. Technol. 1:1-9.
- Alexandra C, Bogdan H, Camelia N and Zoltan K (2018), Mix design of self-compacting concrete with limestone filler versus fly ash addition. Procedia Manufacturing. 22: 301-8.
- Al-Khaburi Sakina and Amoudi Omar (2018), Analysis of accident causes at construction sites in Oman. Jordan Journal of Civil Engineering. 12(22 : 279-294.
- Amr H. Zaher, Wael M Montaser, and Ahmed K Elshenawy (2015), Shear behavior of light weight concrete T–beams. International Journal of Emerging Technology and Advanced Engineering. 5(12): 12.
- Byung Hwan O.H. and Young-Jin Kang (1987). New formulas for maximum crack width and crack spacing in reinforced concrete flexural members. ACI Journal 103-112.
- Cogurcu M.T. (2015), Construction and design defects in the residential buildings and observed earthquake damage types in Turkey. Nat. Hazards Earth Syst. Sci., 15: 931-945.
- Dhia B. Ghailan (2010), T-beam behavior in flexure with different layers of concrete in web and flange. Kufa Journal of Engineering. 2: 53-61.
- Duinkherjav Y. Javkhlan B (2011), The influence of concrete cover to protect reinforcing bar on load carrying capacity of floor slab. The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction, Procedia Engineering 14: 2254-2259.
- Egyptian code of practice for design and construction of reinforced concrete structures (ECCS203-2007). Housing and Building Research Center, Giza, Egypt.
- Hong H.P. He, W. X. (2015), Effect of human error on the reliability of roof panel under uplift wind pressure. Structural Safety, 52: 54-65.
- Kaminetzky D (1991). Design and construction failures: Lessons from forensic investigations.: McGraw-Hill Inc., New York, USA.
- Katarzyna C, Maciej S, and Jacek Ścigałło (2017), The numerical analysis of the effective flange width in T-section reinforced concrete beams. www.sciencedirect.com. Procedia Engineering 172: 178-185.
- Nurul N. B. and Mydin A.O. (2014), General building defects: Causes, symptoms and remedial work. European Journal of Technology and Design, 3: 4-17.
- Riadh Al-Mahaidi, Geoff Taplin, and Craig Giaccio (2011), Experimental study on the effect of flange geometry on the shear strength of reinforced concrete T-beams subjected to concentrated loads. Canadian Journal of Civil Engineering 29: 911-918.
- Stewart M.G. (1993), Modeling human performance in reinforced concrete beam construction. Journal of Construction Engineering and Management. 119: 6-22.
- Vachara Peansupapa and Rothmony Ly (2015), Evaluating the impact level of design errors in structural and other building components in building construction projects in Cambodia. Procedia Engineering 123: 370-378.
- Watstein D, Parson D.E. (1943), Width and spacing of tensile cracks in axially reinforced concrete cylinders. Journal of research national bureau of standards 31: 1-24.
- Zhang Yannian, Xie Jun and Wang Liu (2018), Experimental study on RC T-section beams strengthened with bottom steel plates. Jordan Journal of Civil Engineering. 12(3): 502-515.
References
ACI Committee Report 224.1R-93 (1993), Causes, evaluation and repair of cracks in concrete structures (ACI 224.1R-93). American Concrete Institute Journal 1-22.
Al Khuzaie H.M. Atea R.S. (2018). Investigation of torsional behavior and capacity of reactive powder concrete (RPC) of hollow T-beam. J. Mater. Res. Technol. 1:1-9.
Alexandra C, Bogdan H, Camelia N and Zoltan K (2018), Mix design of self-compacting concrete with limestone filler versus fly ash addition. Procedia Manufacturing. 22: 301-8.
Al-Khaburi Sakina and Amoudi Omar (2018), Analysis of accident causes at construction sites in Oman. Jordan Journal of Civil Engineering. 12(22 : 279-294.
Amr H. Zaher, Wael M Montaser, and Ahmed K Elshenawy (2015), Shear behavior of light weight concrete T–beams. International Journal of Emerging Technology and Advanced Engineering. 5(12): 12.
Byung Hwan O.H. and Young-Jin Kang (1987). New formulas for maximum crack width and crack spacing in reinforced concrete flexural members. ACI Journal 103-112.
Cogurcu M.T. (2015), Construction and design defects in the residential buildings and observed earthquake damage types in Turkey. Nat. Hazards Earth Syst. Sci., 15: 931-945.
Dhia B. Ghailan (2010), T-beam behavior in flexure with different layers of concrete in web and flange. Kufa Journal of Engineering. 2: 53-61.
Duinkherjav Y. Javkhlan B (2011), The influence of concrete cover to protect reinforcing bar on load carrying capacity of floor slab. The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction, Procedia Engineering 14: 2254-2259.
Egyptian code of practice for design and construction of reinforced concrete structures (ECCS203-2007). Housing and Building Research Center, Giza, Egypt.
Hong H.P. He, W. X. (2015), Effect of human error on the reliability of roof panel under uplift wind pressure. Structural Safety, 52: 54-65.
Kaminetzky D (1991). Design and construction failures: Lessons from forensic investigations.: McGraw-Hill Inc., New York, USA.
Katarzyna C, Maciej S, and Jacek Ścigałło (2017), The numerical analysis of the effective flange width in T-section reinforced concrete beams. www.sciencedirect.com. Procedia Engineering 172: 178-185.
Nurul N. B. and Mydin A.O. (2014), General building defects: Causes, symptoms and remedial work. European Journal of Technology and Design, 3: 4-17.
Riadh Al-Mahaidi, Geoff Taplin, and Craig Giaccio (2011), Experimental study on the effect of flange geometry on the shear strength of reinforced concrete T-beams subjected to concentrated loads. Canadian Journal of Civil Engineering 29: 911-918.
Stewart M.G. (1993), Modeling human performance in reinforced concrete beam construction. Journal of Construction Engineering and Management. 119: 6-22.
Vachara Peansupapa and Rothmony Ly (2015), Evaluating the impact level of design errors in structural and other building components in building construction projects in Cambodia. Procedia Engineering 123: 370-378.
Watstein D, Parson D.E. (1943), Width and spacing of tensile cracks in axially reinforced concrete cylinders. Journal of research national bureau of standards 31: 1-24.
Zhang Yannian, Xie Jun and Wang Liu (2018), Experimental study on RC T-section beams strengthened with bottom steel plates. Jordan Journal of Civil Engineering. 12(3): 502-515.