Seismic performance of self-centering precast segmental bridge columns under different lateral loading directions

2020 ◽  
Vol 221 ◽  
pp. 111037 ◽  
Author(s):  
Junfeng Jia ◽  
Kaidi Zhang ◽  
Suiwen Wu ◽  
Yang Guo ◽  
Xiuli Du ◽  
...  
Keyword(s):  
Seismic Performance ◽  
Bridge Columns ◽  
Lateral Loading ◽  
Segmental Bridge

Seismic Performance and Effects of Different Joint Shapes for Unbonded Precast Segmental Bridge Columns

2016 ◽  
Vol 32 (4) ◽  
pp. 427-433
Author(s):  
H.-L. Wang ◽  
S.-W. Liu ◽  
Z. Zhang
Keyword(s):  
Seismic Performance ◽  
Residual Deformation ◽  
Time History ◽  
Bridge Columns ◽  
Nonlinear Time History Analysis ◽  
Backbone Curve ◽  
Coulomb’S Friction ◽  
Plane Contact ◽  
Nonlinear Time History ◽  
Segmental Bridge

AbstractTo study the seismic performance and the effects of different joint shapes for unbonded precast segmental bridge columns under low-reversed cyclic loading, two 3-D finite element (FE) models respectively using plane-contact joints and shear resistant joints were established. In the FE models, the mechanical behaviors of concrete and tendons were respectively described by the damage-plastic model and the bilinear model, and the contact criteria was based on Coulomb's Friction. The results of nonlinear time history analysis showed that the deformation of the columns was mainly composed of alternately open-closed joints, and the failure of the column was mainly caused by concrete crush on the bottom segment. Compared with two model's hysteresis loop, backbone curve, ductility and residual deformation, it was found that the column with shear resistant joints had longer stable period of strength, better ductility, and smaller residual displacement than the column with plane-contact joints, so it had better seismic performance.

Seismic performance of precast segmental bridge columns repaired with CFRP wraps

2020 ◽  
Vol 243 ◽  
pp. 112218
Author(s):  
Yuye Zhang ◽  
Armin Tabandeh ◽  
Yu Ma ◽  
Paolo Gardoni
Keyword(s):  
Seismic Performance ◽  
Bridge Columns ◽  
Segmental Bridge

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.

Seismic performance of circular hollow RC bridge columns

2014 ◽  
Vol 19 (5) ◽  
pp. 1456-1467 ◽  
Author(s):  
Jae-Hoon Lee ◽  
Jin-Ho Choi ◽  
Do-Kyu Hwang ◽  
Im-Jong Kwahk
Keyword(s):  
Seismic Performance ◽  
Bridge Columns ◽  
Rc Bridge Columns
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