Seismic Repair of Circular Reinforced Concrete Bridge Columns by Plastic Hinge Relocation with Grouted Annular Ring

2019 ◽  
pp. 1-35
Author(s):  
Zachary F. Krish ◽  
Mervyn J. Kowalsky ◽  
James M. Nau
Keyword(s):  
Reinforced Concrete ◽  
Plastic Hinge ◽  
Bridge Columns ◽  
Concrete Bridge ◽  
Annular Ring ◽  
Reinforced Concrete Bridge ◽  
Seismic Repair

Seismic Performance Analysis of a Continuous Girder Bridge with Precast Segmental Pier

2011 ◽  
Vol 250-253 ◽  
pp. 1966-1970 ◽  
Author(s):  
Ji Ping Ge
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Plastic Hinge ◽  
Bridge Columns ◽  
Concrete Bridge ◽  
Reinforced Concrete Bridge ◽  
Continuous Girder Bridge ◽  
Girder Bridge ◽  
Plastic Hinge Method ◽  
Segmental Bridge

Based on available research results of precast segmental bridge pier, seismic performance of a continuous girder bridge with precast segmental bridge columns using match-cast dry joints was analyzed with the lumped plastic hinge method verified by experiment, the similarities and differences of seismic performance between the continuous girder bridge with precast segmental bridge columns and that of cast-in-placement reinforced concrete bridge columns were gained. Results show that the maximum displacement response of the continuous girder bridge with precast segmental bridge columns is bigger than that of the continuous girder bridge with cast-in-place reinforced concrete bridge columns. While for the residual displacement, the opposite is true. The reason is that the restoring force exists in the precast segmental bridge pier by the prestress strands. The concentrated plastic hinge method for cast-in-place reinforced concrete bridges could be used to bridges with precast segmental bridge columns.

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