Abstract
This innovative joint was conceived for the effective and sustainable construction of precast concrete pipe-rack structures in petrochemical plants. It consists in a cast-in-situ joint between precast beam and column concrete elements, featuring easy in-shop fabrication and on-site assembly, with no scaffolding and minimum formworks. The solution is characterized by high strength and ductile behaviour in the plastic range, by means of loop splices and cast-in-situ concrete with steel fibres. Experimental tests conducted on reduced-scale structures verified that the performance of the prefabricated solution during an earthquake is comparable to, if not better than, that of the corresponding cast-in-situ concrete solution, while fulfilling the American Concrete Institute requirements. This precast concrete solution economically mimics the behaviour of monolithic reinforced concrete frames and has been already successfully implemented in several pipe rack structures in remote seismic zones.
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References
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Breccolotti M, Bonfigli MF, Colone V, Luigi A, Materazzi BP, Tommasini M (2017) Wet-joint techniques for the construction of precast concrete pipe rack structures in remote seismic zones. PCI J
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Colone, V., Lopriore, P. (2020). An Innovative and Sustainable Wet Joint Between Precast Beam and Columns from the Oil & Gas. In: di Prisco, M., Menegotto, M. (eds) Proceedings of Italian Concrete Days 2018. ICD 2018. Lecture Notes in Civil Engineering, vol 42. Springer, Cham. https://doi.org/10.1007/978-3-030-23748-6_45
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DOI: https://doi.org/10.1007/978-3-030-23748-6_45
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