Damage Analysis of Reinforced Concrete Structures with Substandard Detailing

Part of book or chapter of book English OPEN
Mergos, P.E. ; Kappos, A. J. (2013)

The goal of this study is to investigate seismic behaviour of existing R/C buildings designed and constructed in accordance with standards that do not meet current seismic code requirements. In these structures, not only flexure, but also shear and bond-slip deformation mechanisms need to be considered, both separately and in combination. To serve this goal, a finite element model is developed for inelastic seismic analysis of complete planar R/C frames. The proposed finite element is able to capture gradual spread of inelastic flexural and shear deformations as well as their interaction in the end regions of R/C members. Additionally, it is capable of predicting shear failures caused by degradation of shear strength in the plastic hinges of R/C elements, as well as pullout failures caused by inadequate anchorage of the reinforcement in the joint regions. The finite element is fully implemented in the general inelastic finite element code IDARC2D and it is verified against experimental results involving individual column and plane frame specimens with nonductile detailing. It is shown that, in all cases, satisfactory correlation is established between the model predictions and the experimental evidence. Finally, parametric studies are conducted to illustrate the significance of each deformation mechanism on the seismic response of the specimens under investigation. It is concluded, that all deformation mechanisms, as well as their interaction, should be taken into consideration in order to predict reliably seismic damage of R/C structures with substandard detailing.
  • References (3)

    [23] Park R, Sampson RA (1972) Ductility of reinforced concrete column sections in seismic design. ACI Struct J 69:543-551

    [24] Soroushian P, Kienuwa O, Nagi M, Rojas M (1988) Pullout behaviour of hooked bars in exterior beam-column connections. ACI Struct J 85:269-276

    [25] Saatcioglu M, Alsiwat JM, Ozcebe G (1992) Hysteretic behaviour of anchorage slip in R/C members. J Struct Eng, 118:2439-2458 Biskinis D, Roupakias G, Fardis MN (2004) Degradation of shear strength of R/C members with inelastic cyclic displacements. ACI Struct J 101:773-783 Ozcebe G, Saatcioglu M (1989) Hysteretic shear model for reinforced concrete members. J Struct Eng 115:132-148 [19] Park R, Paulay T (1975) Reinforced concrete structures. Wiley and Sons, New York Alsiwat JM, Saatcioglu M (1992) Reinforcement anchorage slip under monotonic loading. J Struct Eng 118:2421-2438 ACI Committee 408 (2003) Bond and development of straight reinforcement in tension. American Concrete Institute, Farmington Hills [16] [17] [18] [20] [21] [22] [26] [27] [28] [29] [30] [31] [32] Newmark NM (1959) A method of computation for structural dynamics. J Eng Mechanics Division 89:67-94 Kanaan AE, Powel GH (1973) DRAIN-2D: A general purpose computer program for dynamic analysis of inelastic plane structures. Report EERC-73/06 and 73/22, Univ. of California Berkeley [33] El-Attar AG, White RN, Gergely P (1997) Behaviour of gravity load designed R/C buildings subjected to earthquakes. ACI Struct J 94:1-13

  • Bioentities (1)
    3mpa Protein Data Bank
  • Metrics
    0
    views in OpenAIRE
    0
    views in local repository
    107
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    City Research Online - IRUS-UK 0 107
Share - Bookmark