Experimental investigation of seismic behavior of UHPC-filled socket precast bridge column-foundation connection with shear keys

2021 ◽  
Vol 228 ◽  
pp. 111527
Author(s):  
Guangda Zhang ◽  
Qiang Han ◽  
Kun Xu ◽  
Xiuli Du ◽  
Weili He
Keyword(s):  
Experimental Investigation ◽  
Seismic Behavior ◽  
Bridge Column ◽  
Shear Keys ◽  
Column Foundation

Seismic behavior of reinforced concrete sacrificial exterior shear keys of highway bridges

2017 ◽  
Vol 139 ◽  
pp. 59-70 ◽  
Author(s):  
Qiang Han ◽  
Yulong Zhou ◽  
Yuchen Ou ◽  
Xiuli Du
Keyword(s):  
Reinforced Concrete ◽  
Seismic Behavior ◽  
Highway Bridges ◽  
Shear Keys

Experimental Evaluation of Bridge Column Foundation Rocking Behavior

2018 ◽  
Vol 23 (11) ◽  
pp. 04018088 ◽  
Author(s):  
Ahmad S. Saad ◽  
David H. Sanders ◽  
Ian G. Buckle
Keyword(s):  
Experimental Evaluation ◽  
Bridge Column ◽  
Column Foundation ◽  
Rocking Behavior

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.

Influence of the use of external shear keys on the seismic behavior of Chilean highway bridges

2017 ◽  
Vol 147 ◽  
pp. 613-624 ◽  
Author(s):  
José de Jesús Wilches Están ◽  
Hernán Santa María ◽  
Rafael Riddell ◽  
Carlos Arrate
Keyword(s):  
Seismic Behavior ◽  
Highway Bridges ◽  
Shear Keys
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