Evaluation of Seismic Performance of Highway Bridges considering the Ultimate Behavior of Rubber Bearings

2014 ◽  
Author(s):  
T. Mazda ◽  
C. Joon-Ho ◽  
H. Akinaga
Keyword(s):  
Seismic Performance ◽  
Highway Bridges ◽  
Rubber Bearings

SEISMIC CAPACITY OF MEDIUM SIZE CONTINUOUS BRIDGES WITH LEAD-RUBBER BEARINGS

2019 ◽  
Vol 3 (Special Issue on First SACEE'19) ◽  
pp. 199-206
Author(s):  
Bertha Olmos ◽  
José Jara ◽  
José Luis Fabián
Keyword(s):  
Seismic Performance ◽  
Seismic Vulnerability ◽  
Base Isolation ◽  
Elastic Behaviour ◽  
Medium Size ◽  
Nonlinear Behaviour ◽  
Seismic Capacity ◽  
Damage Scenarios ◽  
Isolation Systems ◽  
Rubber Bearings

This paper investigates the effects of the nonlinear behaviour of isolation pads on the seismic capacity of bridges to identify the parameters of base isolation systems that can be used to improve seismic performance of bridges. A parametric study was conducted by designing a set of bridges for three different soil types and varying the number of spans, span lengths, and pier heights. The seismic responses (acceleration, displacement and pier seismic forces) were evaluated for two structural models. The first model corresponded to the bridges supported on elastomeric bearings with linear elastic behaviour and the second model simulated a base isolated bridge that accounts for the nonlinear behaviour of the system. The seismic demand was represented with a group of twelve real accelerograms recorded on the subduction zone on the Pacific Coast of Mexico. The nonlinear responses under different damage scenarios for the bridges included in the presented study were estimated. These results allow determining the seismic capacity of the bridges with and without base isolation. Results show clearly the importance of considering the nonlinear behaviour on the seismic performance of bridges and the influence of base isolation on the seismic vulnerability of medium size bridges.

scholarly journals INVESTIGATION OF SEISMIC PERFORMANCE OF HIGH DAMPING RUBBER BEARINGS FOR ISOLATED BRIDGES USING REAL-TIME SUBSTRUCTURE HYBRID LOADING TEST METHOD

2007 ◽  
Vol 63 (1) ◽  
pp. 265-276 ◽  
Author(s):  
Yong YUAN ◽  
Hirokazu IEMURA ◽  
Akira IGARASHI ◽  
Tetsuhiko AOKI ◽  
Yoshihisa YAMAMOTO
Keyword(s):  
Real Time ◽  
Seismic Performance ◽  
Test Method ◽  
Loading Test ◽  
High Damping Rubber Bearings ◽  
High Damping Rubber ◽  
Rubber Bearings ◽  
Isolated Bridges

scholarly journals Seismic Performance of Integral Abutment Highway Bridges in Illinois

2018 ◽  
Author(s):  
James LaFave ◽  
◽  
Larry Fahnestock ◽  
Derek Kozak ◽  
◽  
...  
Keyword(s):  
Seismic Performance ◽  
Highway Bridges ◽  
Integral Abutment

Experimental and analytical studies of seismic response of highway bridges isolated by rate-dependent rubber bearings

2017 ◽  
Vol 150 ◽  
pp. 288-299 ◽  
Author(s):  
Yong Yuan ◽  
Wei Wei ◽  
Akira Igarashi ◽  
Ping Tan ◽  
Hirokazu Iemura ◽  
...  
Keyword(s):  
Seismic Response ◽  
Highway Bridges ◽  
Rate Dependent ◽  
Analytical Studies ◽  
Rubber Bearings
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