PSI - Issue 44

Paolino Cassese et al. / Procedia Structural Integrity 44 (2023) 774–781 P. Cassese et al./ Structural Integrity Procedia 00 (2022) 000 – 000

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O1, showed an increase in lateral load resistance of approximately 15% coupled with a reduction in ductility of about 48%; similarly, (ii) specimen W2 was characterized a force increase equal to 8% and a ductility reduction of 13%. Furthermore, specimens subjected to higher axial load reached first yielding for larger displacement demand. • Axial load variation had negligible influence on the displacement corresponding to the peak condition: in fact, both W- specimens reached their maximum resisting force at IDR equal to 0.4% and both the O- panels at 0.6% IDR. • The final damage state was characterized by diffuse cracks horizontally arising from lateral surfaces and evolving along diagonal directions towards the middle-line of the walls for all the tested specimens, thus confirming considerable flexure-shear interaction in the structural response of these panels. Additionally, especially for W- specimens, significant damage was concentrated at the wall/foundation interface due to combined sliding and fixed-end rotation. References 12390-3, E. (2019). Testing Hardened Concrete - Part 3: Compressive Strength of Test Specimens. In BSI Standards Publication . European Committee for Standardization Brussels, Belgium. Ahmad, A., & Singh, Y. (2021a). In-plane behaviour of expanded polystyrene core reinforced concrete sandwich panels. Construction and Building Materials , 269 , 121804. Ahmad, A., & Singh, Y. (2021b). Flexural behavior of Expanded Polystyrene core Reinforced Concrete Sandwich Panels with different construction methods and end conditions. Structures , 34 , 2900 – 2911. Benayoune, A., Samad, A. A. A., Ali, A. A. A., & Trikha, D. N. (2007). Response of pre-cast reinforced composite sandwich panels to axial loading. Construction and Building Materials , 21 (3), 677 – 685. Benayoune, A., Samad, A. A. A., Trikha, D. N., Ali, A. A. A., & Akhand, A. M. (2004). Precast reinforced concrete sandwich panel as an industrialised building system. International Conference on Concrete Engineering and Technology University Malaya , 1 – 6. Benayoune, A., Samad, A. A. A., Trikha, D. N., Ali, A. A. A., & Ashrabov, A. A. (2006). Structural behaviour of eccentrically loaded precast sandwich panels. Construction and Building Materials , 20 (9), 713 – 724. Brunesi, E., Nascimbene, R., & Pavese, A. (2016). Mechanical model for seismic response assessment of lightly reinforced concrete walls. Earthquakes and Structures , 11 (3), 461 – 481. Bush, T. D., & Stine, G. L. (1994). Flexural behavior of composite precast concrete sandwich panels with continuous truss connectors. PCI Journal , 39 (2), 112 – 121. Cassese, P., De Risi, M. T., & Verderame, G. M. (2020). Seismic assessment of existing hollow circular reinforced concrete bridge piers. Journal of Earthquake Engineering , 24 (10), 1566 – 1601. Davies, J. M. (2008). Lightweight sandwich construction . John Wiley & Sons. D.M. 17/01/2018. Norme Tecniche per le Costruzioni (NTC 2018). Gazzetta Ufficiale, Serie Generale n. 42 del 20/02/2018, Supplemento ordinario n.8., Roma, Italia (In Italian). Gara, F., Ragni, L., Roia, D., & Dezi, L. (2012). Experimental tests and numerical modelling of wall sandwich panels. Engineering Structures , 37 , 193 – 204. Hamed, E. (2016). Modeling, analysis, and behavior of load-carrying precast concrete sandwich panels. Journal of Structural Engineering , 142 (7), 4016036. Kabir, M. Z. (2005). Structural performance of 3-D sandwich panels under shear and flexural loading . Looi, D. T. W., Su, R. K. L., Cheng, B., & Tsang, H. H. (2017). Effects of axial load on seismic performance of reinforced concrete walls with short shear span. Engineering Structures , 151 , 312 – 326. Losch, E. D., Hynes, P. W., Andrews Jr, R., Browning, R., Cardone, P., Devalapura, R., Donahey, R., Freedman, S., Gleich, H. A., & Goettsche, G. (2011). State of the art of precast/prestressed concrete sandwich wall panels. PCI Journal , 56 (2), 131 – 176. Mohamad, N., Omar, W., & Abdullah, R. (2011). Precast Lightweight Foamed Concrete Sandwich Panel (PLFP) tested under axial load: preliminary results. Advanced Materials Research , 250 , 1153 – 1162. Paulay, T., & Priestley, M. J. N. (1992). Seismic design of reinforced concrete and masonry buildings (Vol. 768). Wiley New York. Pavese, A., & Bournas, D. A. (2011). Experimental assessment of the seismic performance of a prefabricated concrete structural wall system. Engineering Structures , 33 (6), 2049 – 2062. Pečur, I. B., Milovanović, B., Carević, I., & Alagušić, M. (2014). Precast sandwich panel — innovative way of construction. Proc 10th CCC Congr Lib , 1 – 12. Qiao, W., Yin, X., Zhao, S., &Wang, D. (2019). Cyclic loading test study on a new cast-in-situ insulated sandwich concrete wall. PloS One , 14 (11), e0225055. Refaei, F. A. I., El-Mihilmy, M. T., & Bahaa, T. M. (2015). Seismic behavior of sandwich panel walls. World Applied Sciences Journal , 33 (11), 1718 – 1731. Ricci, I., Palermo, M., Gasparini, G., Silvestri, S., & Trombetti, T. (2013). Results of pseudo-static tests with cyclic horizontal load on cast in situ sandwich squat concrete walls. Engineering Structures , 54 , 131 – 149. Salmon, D. C., Einea, A., Tadros, M. K., & Culp, T. D. (1997). Full scale testing of precast concrete sandwich panels. Structural Journal , 94 (4), 354 – 362.