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Title |
Effects of Cable Rupture on Dynamic Responses of a Concrete Cable-stayed Bridge
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Keywords |
케이블 파단 ; 콘크리트사장교 ; 설계기준 ; 동적확대계수 ; Cable rupture ; Concrete cable-stayed bridges ; Design guideline ; Dynamic amplification factor |
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Abstract |
This paper aims to investigate the effects of cable rupture on the dynamic responses of concrete cable-stayed bridges in comparison with those of steel composite ones. It examines an adequate analysis method for simulating cable rupture using a time history function and evaluates the design guidelines for dynamic amplification factor (DAF). The computed DAFs from a concrete cable-stayed bridge are compared with those from a steel composite one based on the design guideline. As a conclusion, the current design guidelines for DAF may be reliable in overall but show some unstable cases despite satisfying the design guidelines, especially for concrete cable-stayed bridges.
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