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

Guang Ming Chang; Guo Hua Xing; Bo Quan Liu

doi:10.4028/www.scientific.net/AMR.163-167.1714

Paper Titles

Calculation of Internal Force of Axial Tension Member due to Temperature Variation Accounting for Cracking
p.1692

The Clever Use of Neutron-Axis of the Girder in the Stress Measurement of the Large Span PC Cable Stayed Bridge
p.1696

Ultimate Load Analysis of RC Beam under Combined Action of Axial, Bending and Shear Loading
p.1702

Freeze-Thaw Deterioration Mechanism of Concrete in Different Multi-Aggressive Solution
p.1708

Equivalent Ductility Damage Model for Seismic Response of RC Structures: Test and Verification
p.1714

Calculation of Incremental Force of External Steel in Simply Supported Externally Prestressed Beams
p.1719

Research on Transient Temperature of Concrete Surrounding Spiral Case and Temperature Effect on Gaps in a Hydropower Station
p.1724

Bilateral Shear Strength of Rectangular Frame Column with Different Stirrup on Two Principal Axis
p.1728

The Application of Reinforced Concrete Composite Floor System of Superimposing Box and Net Beam to Zibo Athletes Apartment
p.1732

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167Equivalent Ductility Damage Model for Seismic...

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

Abstract:

. 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.