Investigating the effect of bond slip on the seismic response of RC structures

Fallah, Mohammad Mehdi, Shooshtari, Ahmad and Ronagh, Hamid Reza (2013) Investigating the effect of bond slip on the seismic response of RC structures. Structural Engineering and Mechanics, 46 5: 695-711. doi:10.12989/sem.2013.46.5.695

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Author Fallah, Mohammad Mehdi
Shooshtari, Ahmad
Ronagh, Hamid Reza
Title Investigating the effect of bond slip on the seismic response of RC structures
Journal name Structural Engineering and Mechanics   Check publisher's open access policy
ISSN 1225-4568
1598-6217
Publication date 2013-06-10
Year available 2013
Sub-type Article (original research)
DOI 10.12989/sem.2013.46.5.695
Open Access Status Not Open Access
Volume 46
Issue 5
Start page 695
End page 711
Total pages 17
Place of publication Daejeon, Republic of Korea
Publisher Techno Press
Language eng
Abstract It is reasonable to assume that reinforced concrete (RC) structures enter the nonlinear range of response during a severe ground motion. Numerical analysis to predict the behaviour therefore must allow for the presence of nonlinear deformations if an accurate estimate of seismic response is aimed. Among the factors contributing to inelastic deformations, the influence of the degradation of the bond slip phenomenon is important. Any rebar slip generates an additional rotation at the end regions of structural members which are not accounted for in a conventional analysis. Although these deformations could affect the seismic response of RC structures considerably, they are often neglected due to the unavailability of suitable models. In this paper, the seismic response of two types of RC structures, designed according to the Iranian concrete code (ABA) and the Iranian seismic code (2800), are evaluated using nonlinear dynamic and static analyses. The investigation is performed using nonlinear dynamic and static pushover analysis considering the deformations due to anchorage slip. The nonlinear analysis results confirm that bond slip significantly influences the seismic behavior of RC structure leading to an increase of lateral deformations by up to 30% depending on the height of building. The outcomes also identify important parameters affecting the extent of this influence.
Keyword Nonlinear dynamic analysis
Nonlinear static analysis
Bond slip
RC building
Seismic performance
Reinforced-Concrete Columns
Cyclic Loads
Element
Model
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2014 Collection
 
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Created: Sun, 27 Oct 2013, 10:14:08 EST by System User on behalf of School of Civil Engineering