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Now showing items 1-7 of 7

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    An Evaluation of the Current Caltrans Seismic Restrainer Design Method 

    Saiidi, Mehdi S.; Maragakis, Emmanuel M.; Feng, Shiping (10/1/1992)
    The primary objective of this study was to develop an understanding of the implications of the current Caltrans hinge restrainer design procedure. Two aspects of the problem were studied. One was the effects of changing ...
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    Effects of Axial Force on Frequency of Prestressed Concrete Bridges 

    Saiidi, Mehdi S.; Douglas, Bruce M.; Feng, Shiping; Hwang, E.; Maragakis, Emmanuel M. (8/1/1992)
    The purpose of the study presented in this report was determine if vibration frequencies of prestressed concrete member can be used to establish prestress losses. A post-tensioned concrete bridge (called the Golden Valley ...
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    Effects of Hinge Restrainers on the Response of the San Gregorio Bridge during the Loma Prieta Earthquake 

    Maragakis, Emmanuel M.; Saiidi, Mehdi S.; Feng, Shiping; Flournoy, Linda (7/1/1993)
    The primary objective of this study is to study the effects of cable restrainers on the nonlinear seismic response of the San Gregorio Bridge. The computer program NEABS-86 was used in the nonlinear analyses. The earthquake ...
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    Response of Bridge Hinge Restrainers during Earthquakes -Field Performance, Analysis, and Design 

    Saiidi, Mehdi S.; Maragakis, Emmanuel M.; Abdel-Ghaffar, Saber M.; Feng, Shiping; O'Connor, Dan (5/1/1993)
    This report presents a summary of the important findings of a study aimed at several aspects of the behavior of hinge restrainers used as a seismic retrofit measure. Details of the study are described in five other reports ...
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    Stiffness Evaluation of Pile Foundation of Cazenovia Creek Overpass 

    Douglas, Bruce M.; Maragakis, Emmanuel M.; Feng, Shiping (3/1/1994)
    A detailed study of a typical foundation of the southbound lane of the Cazenovia Creek Expressway was carried out and is described in this report. A 3-dimensional finite element model of the pier bent foundation was ...
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    Summary of Pretest Analysis of Cazenovia Creek Bridge 

    Douglas, Bruce M.; Maragakis, Emmanuel M.; Feng, Shiping (4/1/1994)
    As part of a study to evaluate the basic dynamic characteristics of the southbound bridge of Cazenovia Creek, a detailed parametric study was carried out and is described in this report. A 3-dimensional analysis model was ...
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    System Identification Studies on Cazenovia Creek Overpass 

    Douglas, Bruce M.; Maragakis, Emmanuel M.; Feng, Shiping (10/1/1995)
    The actual system identification algorithms and programs for southbound Cazenovia Creek bridge are developed. These consist of the following: 1.A finite element software package used in the mathematical approximation of ...