SEISMIC RETROFIT OF HIGHWAY BRIDGES
نویسندگان
چکیده
منابع مشابه
Reliability-based Design of Seismic Retrofit for Bridges
This research focused on developing reliability-based seismic retrofit assessment procedures for highway bridge columns. Fragility curves were developed to assess the relative performance of various retrofit methods considering several limit states. Analytical fragility curves are developed from scaled earthquake records and structural response models. A simplified, single-degree-of-freedom (SD...
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The increasingly demanding performance requirements trigger the development of new devices to eliminate the limitations concerning the post-earthquake performance of available seismic protection systems. The prerequisite for economical earthquakeresistant bridges is the structures’ capacity to absorb and dissipate a large amount of seismic energy. A widely considered strategy for enhancing this...
متن کاملa methodology for determining the seismic vulnerability of old concrete highway bridges by using fragility curves
past earthquakes have demonstrated that old rc bridges may be seismically vulnerable. bridge responses during the last decades illustrated the necessity of the seismic assessment of bridges especially those which were designed with old codes. in this research an existing concrete bridge representative of the most common bridges in the highway system in iran are studied. push over and nonlinear ...
متن کاملStructural Seismic Performance Evaluation of Highway Bridges Based on Vibration Measurements
This paper represents the first effort in seismic fragility analysis of a structure using a structural analysis model developed on the basis of measured vibration data. An instrumented highway bridge is used to demonstrate the analysis procedure involving measuring ambient vibration, identifying modal parameters from the measured data, updating a preliminary FE model (obtained from structural d...
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ژورنال
عنوان ژورنال: Journal of Japan Association for Earthquake Engineering
سال: 2004
ISSN: 1884-6246
DOI: 10.5610/jaee.4.3_230