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Seismic performance of RC-column wrapped with Velcro
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 Title & Authors
Seismic performance of RC-column wrapped with Velcro
Kwon, Minho; Seo, Hyunsu; Kim, Jinsup;
A seismic strengthening method using Velcro is proposed to improve the seismic performance of columns in RC frame structures. The proposed method was evaluated experimentally using three fabricated RC specimens. Velcro was wrapped around the columns of the RC-frame specimen to prevent concrete spall falling. The reinforcing performance of the Velcro was determined from comparison of results on seismic performance (i.e., strength, displacement, failure mode, displacement ductility capacity and amount of dissipated energy). As the displacement of the reinforced specimens was increased, the amount of dissipated energy increased drastically, and the displacement-ductility-capacity of the reinforced specimens also increased. The final failure mode of RC frame structure was changed. As a result, it was concluded that the proposed seismic strengthening method using Velcro could be used to increase the displacement ductility of RC columns, and could be used to change the final failure mode of RC-frame structures.
Velcro;RC column;seismic performance;concrete spalling;ductility;
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Aprile, A, and Feo, L. (2007), "Concrete cover rip-off of R/C beams strengthened with FRP composites", Compos. Part B: Eng., 38(5-6), 759-771. crossref(new window)

Ascione, L. and Feo, L. (2000), "Modeling of composite/concrete interface of RC beams strengthened with composite laminates", Compos. Part B: Eng., 31(6-7), 535-40. crossref(new window)

Ascione, L., Berardi, V.P., Feo, L. and Mancusi, G. (2005), "A numerical evaluation of the interlaminar stress state in externally FRP plated RC beams", Compos. Part B: Eng., 36(1), 83-90.

Camata, G., Corotis, R. and Spacone, E. (2004a), "Simplified stochastic modeling and simulation of unidirectional fiber reinforced composites", Probab. Eng. Mech., 19(1), 33-40. crossref(new window)

Camata, G., Spacone, E., Al-Mahaidi, R. and Saouma, V. (2004b), "Analysis of test specimens for cohesive near-bond failure of fiber-reinforced polymer-plated concrete", J. Compos. Construct., 8(6), 528-538. crossref(new window)

Chai, Y.H., Priestley, M.J.N. and Seible, F. (1991), "Seismic retrofit of circular bridge columns for enhancing flexural performance", ACI Struct. J., 88(5), 572-584.

Di Ludovico, M., Balsamo, A., Prota, A. and Manfredi, G. (2008), "Comparative assessment of seismic rehabilitation techniques on a full scale 3-story RC moment frame structure", Struct. Eng. Mech., 28(6), 727-747. crossref(new window)

Ha, G.J. and Cho, C.G. (2008), "Strengthening of reinforced high-strength concrete beam-column joints using advanced reinforcement details", Mag. Concrete Res., 60(7), 487-497. crossref(new window)

Kim, J.S., Kwon, M.H., Jung, W.Y. and Limkatanyu, S. (2013), "Seismic performance evaluation of RC columns reinforced by GFRP composite sheets with clip connectors", Constr. Build. Mater., 43, 563-574. crossref(new window)

Lee, H.H. (2007), "Shear strength and behavior of steel fiber reinforced concrete columns under seismic loading", Eng. Struct., 29, 1253-1262. crossref(new window)

Limkatanyu, S. and Spacone, E. (2002), "Reinforced concrete frame element with bond interfaces. II: State determinations and numerical validation", J. Struct. Eng., 128(3), 356-364. crossref(new window)

Matsuda, T., Sato, H., Fujiwara, H. and Higashira, N. (1990), "Effect of carbon fiber reinforcement as a strengthening measure for reinforced concrete bridge piers", First US-Japan Workshop on Seismic Retrofit of Bridges, Tsukuba Science City, Japan.

Monti, G., Filippou, F.C. and Spacone, E. (1997), "Analysis of hysteretic behavior of anchored reinforcing bars", ACI Struct. J., 94(3), 248-261.

Priestley, M.J.N. and Seible, F. (1991), "Seismic assessment and retrofit of bridges", Report Number: SSRP-91-103, University of California, San Diego, California, USA.

Priestley, M.J.N., Seible, F., Xiao, Y. and Verma, P. (1994), "Steel jacket retrofit of squat RC bridge columns for enhanced shear strength. Part II: Experimental results", ACI Struct. J., 91(5), 537-551.

Priestley MJN, Seible F and Calvi GM. (1996), Seismic design and retrofit of bridges, John Wiley and Sons.

Purba, B.K. and Mufti, A. (1999), "Investigation of the behavior of circular columns reinforced with carbon fiber reinforced polymer (CFRP) jackets", Can. J. Civil Eng., 26(5), 590-596. crossref(new window)

Rousakis, T. (2013), "Hybrid confinement of concrete by FRP sheets and fiber ropes under cyclic axial compressive loading", J. Compos. Construct., 17(5), 732-743. crossref(new window)

Rousakis, T. (2014), "Elastic fiber ropes of ultra high extension capacity in strengthening of concrete through confinement", J. Mater. Civil Eng., 26(1), 34-44. crossref(new window)

Rousakis, T. and Tourtouras, I. (2014), "RC columns of square section-Passive and active confinement with composite ropes", Compos. Part B, 58, 573-581. crossref(new window)

Saadatmanesh, H., Ehsani, M.R. and Li, M.W. (1994), "Strength and ductility of concrete columns externally reinforced with fiber composite straps", ACI Struct. J., 91(4), 434-447.

Saadatmanesh, H., Ehsani, M.R. and Jin, M.R. (1996), "Seismic strengthening of circular bridge pier models with fiber composites", ACI Struct. J., 93(6), 639-647.

Shimomura, T, Fujikawa, H. and Maruyama, K. (2009), "Modeling of load bearing mechanism of RC column with external continuous fiber rope under reversed cyclic load", The Second International Conference of International Institute for FRP in Constructon for Asia-Pacific Region, Seoul, South Korea.

Xiao, Y. and Ma, R. (1997), "Seismic retrofit of RC circular columns using prefabricated composite jacketing", ASCE J. Struct. Eng., 123(10), 1357-1364. crossref(new window)

Xiao, Y. and Wu, H. (2003), "Compressive behavior of concrete confined by various types of FRP composite jackets", J. Reinf. Plast. Compos., 22(13), 1187-1201. crossref(new window)

Xiao, Y., Priestley, M.J.N. and Seible, F. (1996), "Seismic assessment and retrofit of bridge column footings", ACI Struct. J., 93(1), 79-94.

Yan, Z. and Pantelides, C.P. (2011), "Concrete column shape modification with FRP shells and expansive cement concrete", Constr. Build. Mater., 25(1), 396-405. crossref(new window)

Ye, L.P., Zhang, K., Zhao, S.H. and Feng, P. (2003), "Experimental study on seismic strengthening of RC columns with wrapped CFRP sheets", Constr. Build. Mater., 17(6-7), 499-506. crossref(new window)