scholarly journals Numerical Analytical Model for Seismic Behavior of Prestressing Concrete Bridge Column Systems

2011 ◽  
Vol 14 ◽  
pp. 2333-2340 ◽  
Author(s):  
Zhiqiang Wang ◽  
Wei Song ◽  
Yuanyuan Wang ◽  
Hongyi Wei
Keyword(s):  
Analytical Model ◽  
Seismic Behavior ◽  
Concrete Bridge ◽  
Bridge Column

SEISMIC BEHAVIOR OF POST-TENSIONED ROCKING COLUMNS WITH RE-PLACEABLE ENERGY DISSIPATERS

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
H. H. Hung ◽  
C. W. Huang ◽  
C. R. Jiang
Keyword(s):  
Energy Dissipation ◽  
Inelastic Deformation ◽  
Recovery Time ◽  
Seismic Behavior ◽  
Seismic Events ◽  
External Energy ◽  
Mechanical Joint ◽  
Bridge Column ◽  
Energy Dissipation Devices ◽  
Post Tensioned

To mitigate the column damage during seismic events and to reduce the recovery time after a major earthquake, a post-tensioned bridge column with a rocking interface above the foundation and externally-installed energy dissipation devices was proposed. The energy dissipation devices were specially designed to serve as fuse elements that can be easily replaced after yielding. In addition, a mechanical joint that can rotate freely in all directions was incorporated at one end of the dissipater to ensure bending was not transmitted into this device. To verify the seismic performance of the proposed system, two proposed specimens with different prestressing forces and design details in the rocking base were constructed and tested. From the experiments, it was found that the proposed post-tensioned specimens suffered minor damage after cyclic loadings. All of the damage was concentrated on the inelastic deformation that occurred at the external energy dissipaters. The ease of replacement for the external energy dissipaters was also confirmed.

Failure Analysis of Reinforced Concrete Bridge Column Using Cohesive and Adhesive Interfaces

2006 ◽  
Vol 321-323 ◽  
pp. 716-719 ◽  
Author(s):  
In Kyu Rhee ◽  
Hee Up Lee ◽  
Jun S. Lee ◽  
Woo Kim
Keyword(s):  
Reinforced Concrete ◽  
Failure Analysis ◽  
Interfacial Crack ◽  
Concrete Columns ◽  
Crack Model ◽  
Concrete Bridge ◽  
Reinforced Concrete Columns ◽  
Reinforced Concrete Bridge ◽  
Bridge Column ◽  
The University

This study examines the performance of adhesive and cohesive interfacial crack model in assessing the brittle shear behavior of reinforced concrete bridge columns. The quarter-scale reinforced concrete columns tested at the University of California at San Diego by Xiao et al. (1993) to explore the ductility of reinforced concrete columns under cyclic loading. The three columns R-1, R-3 and R-5 with different transverse reinforcement are considered for finite element failure analysis.

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