2013 Session: 810

2013 Session: 810

  • Failure Analysis and Retrofit Strategy of Cardenal Raúl Silva Henríquez Bridge During 2010 Earthquake in Chile
    Abstract: This paper presents a case study of the Cardinal Raúl Silva Henàiquez Bridge that experienced significant damage during the February 27, 2010, Chile Earthquake. Supported by reinforced concrete and steel columns with varying heights, the superstructure of the bridge consisted of 22 steel girder spans with one intermediate expansion joint located at the middle of the bridge. At each end of the bridge, the bottom flanges of the girders were welded onto their bearing steel plates that were embedded and anchored into the bridge abutment. Two three-dimensional finite element models (global versus local) with beam and solid elements, respectively, were established for bridge response and damage process simulations. Field observations indicated and finite element simulations verified that the damage was mainly caused by the excessive seismic load of 11 continuous steel-girder spans under longitudinal earthquake loading and its eccentricity from the girder-to-abutment connection, resulting in a significant bending effect. Parametric studies demonstrated that an effective retrofit strategy can be developed by reducing the number of continuous spans, modifying the girder-to-abutment connection detail, and increasing the capacity of girders with enlarged bearing seats, additional stiffeners for girders, and thicker flanges and webs.
    Authors: Wang, Zuocai; Chen, Genda; Yen, Wen-huei Phillip; Buckle, Ian G.
    Authors: Wang, Zuocai; Chen, Genda; Yen, Wen-huei Phillip; Buckle, Ian G.
    Year: 2013
    Document Type: Paper
    Subject: Bridges and Other Structures; Design
    Session: 810
    Paper Number: 13-3048
  • Failure Analysis and Retrofit Strategy of Cardenal Raúl Silva Henríquez Bridge During 2010 Earthquake in Chile
    Authors: Chen, Genda
    Authors: Chen, Genda
    Year: 2013
    Document Type: Presentation
    Subject: Bridges and Other Structures; Design
    Session: 810
    Paper Number: 13-3048
  • Postearthquake Analyses of Two Bridges Damaged in 2010 Earthquake in Chile
    Authors: Kwon, Oh-Sung
    Authors: Kwon, Oh-Sung
    Year: 2013
    Document Type: Presentation
    Subject: Bridges and Other Structures; Design
    Session: 810
    Paper Number: P13-6554
  • Bridge Performance Learned from Recent Devastating Earthquakes
    Authors: Chang, Kuo-Chun
    Authors: Chang, Kuo-Chun
    Year: 2013
    Document Type: Presentation
    Subject: Bridges and Other Structures; Design
    Session: 810
    Paper Number: P13-6555
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