Local Stiffening of Steel I-Beams by Using CFRP Materials

Abstract:

Article Preview

This paper reports the experimental studies on the local stiffening of steel I-beams by using Carbon Fiber Reinforced Polymer (CFRP) strips. One of the problems which frequently occur for steel section is the large local deformation under point loads. To study the effects of applying CFRP for local stiffening, four steel I-beams were selected and tested to failure. The first beam had no steel stiffeners below the point loads and used as the control beam. The second beam had steel stiffeners and was not enhanced by using CFRP strip. The third and fourth beams had no steel stiffeners below the point loads and were strengthened on the compressive flanges by using two longitudinal CFRP strips. Also, the third and fourth specimens were strengthened on the web by using the latitudinal CFRP strips in the discrete and continual types, respectively. The results show that applying CFRP on the compressive flange and web increased the load bearing capacity and decreased the local and overall deformations appropriately. Also, the full-covering of the web seems to be the best type of web strengthening.

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Edited by:

Lijuan Li

Pages:

3838-3843

Citation:

K. Narmashiri et al., "Local Stiffening of Steel I-Beams by Using CFRP Materials", Advanced Materials Research, Vols. 163-167, pp. 3838-3843, 2011

Online since:

December 2010

Export:

Price:

$41.00

[1] R. Sen, L. Liby and G. Mullins: Compos. Part B-Eng. Vol. 32 (2001), p.309.

[2] J. Deng, M.M.K. Lee and S.S.J. Moy: Compos. Struct. Vol. 65 (2004), p.205.

[3] K. Nozaka, C.K. Shield and J.F. Hajjar: J Bridge Eng. Vol. 10 (2005), p.195.

[4] P. Colombi: Eng. Fract. Mech. Vol. 73 (2006), p. (1980).

[5] P. Colombi and C. Poggi: Compos. Part B-Eng. Vol. 37 (2006), p.64.

[6] N.K. Photiou, L.C. Hollaway and M.K. Chryssanthopoulos: Constr. Build. Mater. Vol. 20 (2006), p.11.

[7] M.A. Youssef: Eng. Struct. Vol. 28 (2006), p.903.

[8] A.H. Al-saidy, F.W. Klaiber and T.J. Wipf: Constr. Build. Mater. Vol. 21 (2007), p.295.

[9] J. Deng and M.M.K. Lee: Compos. Struct. Vol. 78 (2007), p.232.

[10] J. Deng and M.M.K. Lee: Compos. Struct. Vol. 78 (2007), p.222.

[11] A.H. Al-saidy, F.W. Klaiber, T.J. Wipf, K.S. Al-Jabri and A.S. Al-Nuaimi: Constr. Build. Mater. Vol. 22 (2008), p.729.

[12] A. Fam, C.M. Dougall and A. Shaat: Thin Wall. Struct. Vol. 47 (2009), p.1122.

[13] C. Pellegrino, E. Maiorana and C. Modena: Mater. Struct. Vol. 42 (2008), p.353.

[14] S. Rizkalla, M. Dawood and D. Schnerch: Compos. Part A-Appl. Vol. 39 (2008), p.388.

[15] M. Bocciarelli: Eng. Struct. Vol. 31 (2009), p.956.

[16] D. Linghoff, R. Haghani and M. Al-emrani: (2009). Thin Wall. Struct. Vol. 47 (2009), p.1048.

[17] K. Narmashiri and M.Z. Jumaat: Simul. Model. Pract. Theory (2010), in press, doi: 10. 1016/j. simpat. 2010. 08. 012.

[18] K. Narmashiri, M.Z. Jumaat and N.H. Ramli Sulong: Int. J. Phys. Sci. Vol. 5 (2010), in press.

[19] A.K. Patnaik, C.L. Bauer and T.S. Srivatsan: Sadhana- Acad. P. Eng. S. Vol. 33 (2008), p.261.

[20] K. Narmashiri, M.Z. Jumaat and N.H. Ramli Sulong: Sci. Res. Essays, Vol. 5 (2010), p.2155.

[21] X.L. Zhao, D. Fernando and R. Al-mahaidi: Eng. Struct. Vol. 28 (2006), p.1555.

[22] K.A. Harries, A.J. Peck and E.J. Abraham: Thin Wall. Struct. Vol. 47 (2009), p.1092.

[23] D. Fernando, T. Yu, J.G. Teng and X.L. Zhao: Thin Wall. Struct. Vol. 47 (2009), p.1020.

[24] X.L. Zhao and R. Al-Mahaidi: Thin Wall. Struct. Vol. 47 (2009), p.1029.

[25] SIKA Product Information. Second ed. (Sika Kimia Sdn Bhd., Kuala Lumpur 2008).

[26] C.G. Salmon, J.E. Johnson and F.A. Malhas: Steel Structures, Design and Behavior. Fifth ed., (Pearson Prentice Hall, New Jersey 2009).