Analytical Studies on Reinforced Concrete Members Under Cyclic Loading Based on Bond Stress-Slip Relationships

10.14359/6919 ◽  
1981 ◽  
Vol 78 (3) ◽  
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Bond Stress ◽  
Concrete Members ◽  
Analytical Studies

Reinforced Concrete Members with Cyclic Loading

1972 ◽  
Vol 98 (7) ◽  
pp. 1341-1360 ◽  
Author(s):  
Robert Park ◽  
Dudley Charles Kent ◽  
Richard A. Sampson
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Concrete Members

Equivalent Ductility Damage Model for Seismic Response of RC Structures: Test and Verification

2010 ◽  
Vol 163-167 ◽  
pp. 1714-1718
Author(s):  
Guang Ming Chang ◽  
Guo Hua Xing ◽  
Bo Quan Liu
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Damage Model ◽  
Damage Index ◽  
Shear Walls ◽  
Rc Structures ◽  
Index Model ◽  
Concrete Members ◽  
Ultimate Failure ◽  
Total Structure

. It is possible to quantify the damage to reinforced concrete members under cyclic loading through a nondimensional parameter known as a “damage index”. The damage index can be either a global damage index for the total structure, or a local damage index for the element level. In this paper, a new damage model termed “equivalent ductility damage model” has been suggested for evaluation of the damage index, which is consistent with accepted definitions of ductility. Substructure method was applied to verify the suggested new damage model. A total of 3 identical half-scale reinforced concrete columns were tested under variable amplitude cyclic loading up to the ultimate failure of the specimens. The imposed displacement histories were obtained from analytical simulations of the model column subjected to a series of earthquakes. Test observations indicate that the proposed model predicts 100 percent damage at the ultimate failure state of the element. The proposed damage index model can be extended to other structural elements, such as shear walls, beams, beam-column junctions, etc.

scholarly journals Uniaxial Bond Stress-Slip Relationship of Reinforcing Bars in Concrete

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Sungnam Hong ◽  
Sun-Kyu Park
Keyword(s):  
Reinforced Concrete ◽  
Bond Stress ◽  
Analytical Models ◽  
Cross Sectional ◽  
Concrete Members ◽  
Axial Tension ◽  
Analytical Results ◽  
Proposed Model ◽  
Relationship Of ◽  
Tension Loading

This paper documents a study carried out on the estimation of the bond stress-slip relationship for reinforced concrete members under axial tension loading. An analytical model is proposed that utilizes the conventional bond stress-slip theories as well as the characteristics of deformed bar and concrete cross-sectional area. An equation for the estimation of the bond stress is formulated as the function of nondimensional factors (e.g., bond stress, slip, etc.). The validity, accuracy, and efficiency of the proposed model are established by comparing the analytical results with the experimental data and the JSCE design codes, as well as the analytical models given by Ikki et al. and Shima. The analytical results presented in this paper indicate that the proposed model can effectively estimate the bond stress-slip relationship of reinforced concrete members under axial tension loading.

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