THE INFLUENCE OF BELT DIRECTION ON THE CONNECTION OF PRECAST COLUMN- BEAMS WITH CFRP SHEETS
DOI:
https://doi.org/10.31957/jipi.v11i3.3181Keywords:
CFRPs, monolith connection, U-shape, diagonal belt, edge stress, premature failure keyAbstract
The precast beam-column connection method with CFRPs can be developed into an applicable splicing method and environmentally friendly, considering its achievement of 90.6% over monolith joints. The existing weaknesses need to be studied further for the improvement of this connection method. The use of belts with a perpendicular U-shape direction apparently causes the effect of edge stress (scissor force) which actually causes premature failure. This study aims to analyze the influence of belt direction on precast beam-column joints with CFRPs, namely attaching diagonal directional belts to the U-shape. Variations of specimens used are monolith connections (MN) as normal specimens, beltless connections (U1-B0), connections with one belt installed perpendicular to U-shape (U1-B1) and connections with one belt mounted diagonally to the U-shape (U1-DB1). The MN joint achieves a load capacity of 24 kN and deflection of 44.7 mm. U1-B0 reaches 21.75 kN or 90.6% with deflection of 31.36 mm or 70.2% against MN. The U1-B1 reaches 15 kN (62.5%) and deflection is 27.10 mm (60.6%). The U1-DB1 connection reached 26.25 kN (109.4%) with a deflection of 47.16 mm (105.5%) against MN. Changing the direction of the belt to diagonal has improved joint performance, increasing load capacity by 175% and deflection by 174% against U1-B1 and achieving more than monolith joints. With the use of diagonal belts, edge stress still occurs but the process is slower so that the U-shape can last longer. A thicker U-shape is needed to overcome edge stress and this is a part that needs further study.
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References
Alcocer ,Sergio M.; Carranza, Rene.; Navarrete, David P. (2000). “Behaviour of a Precast Concrete Beam-Column Connection “. 12 WCEE 2000.
Badan Standardisasi Nasional. “SNI 2847:2013 Persyaratan Beton Struktural Untuk Bangunan Gedungâ€. Jakarta 2013.
Balasubramaniana, K.; Lakshmananb, N.; Jeyaseharc, Antony C.; Ramesha, G.; Bharatkumar, B.H. (2012). “Evaluation Of Performance Of Retrofitted Reinforced Concrete Beam Column Joints-A Simplified Modelâ€. Asian Journal of Civil Engineering (Building and Housing) vol. 13, no. 6 (2012) pages 783-803
Djamaluddin, R. (2006). “Analitycal Study of The Radially Stress Due To Initial Tensile Force In Manufacturing of CFRPâ€. Media Komunikasi Teknik Sipil. Volume 14, No. 1, Edisi XXXIV Pebruari 2006. Pages 73-77
European Commission Joint Research Centre Institute for the Protection and Security of the Citizen. (2012). “Design Guidelines for Connections of Precast Structures under Seismic Actionsâ€. JRC71599, EUR 25377 EN, ISBN 978-92-79-25250-1, ISSN 1831-9424, doi:10.2777/37605. Luxembourg: Publications Office of the European Union, 2012
Faella, Ciro: Lima, Carmine; Napoli, Annalisa.; Realfonzo, Roberto.; Ruiz, Pinilla J. G. (2012). “Beam-Column Joints Strengthened With FRP Systemsâ€.
Mosallam A.S. (2007). “Structural Upgrade of Reinforced Concrete Column-Tie Beam Assembly using FRP Compositesâ€. SP-258-4. Pg 57-68.
Nimse, Rohit B.; Joshi, Digesh D.; Patel, Paresh V. (12 November 2014). “Behavior of wet precast beam column connections under progressive collapse scenario: an experimental studyâ€. Int J Adv Struct Eng (2014) 6:149–159. DOI 10.1007/s40091-014-0072-3
Rante, H., Djamaluddin, R., Parung, H., dan Sampebulu, V. (2015). Prosiding ICCEIE 2015 : 17th International Conference on Civil, Environmental and Infrastructure Engineering, Kyoto, Japan, 12-13 Nopember 2015, 1047 - 1053
Ravi, Robert S. (2010). “Experimental Investigation on Behavior of Reinforced Concrete Beam Column Joints Retrofitted with FRP Wrap Subjected to Static Loadâ€
Rose, Leema A.; Suguna K.; Ragunath, P.N.; (2009). “Strengthening of Corrosion-Damaged Reinforced Concrete Beams with Glass Fiber Reinforced Polymer Laminatesâ€. Journal of Computer Science 5 (6): 435-439, 2009. ISSN 1549-3636 © 2009 Science Publications. Pg 435-439
SNI-03-2847-2002. “Procedures for Calculating Concrete Structures for Buildingâ€. Desember 2002.
Sultan, M.A. (2015). “Study of the Influence of the Tropical Marine Environment on the Characteristics of Reinforced Concrete Blocks reinforced with GFRP Sheetâ€.
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