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- W2383660427 abstract "To explore the improvement methods for safety performance of in-service bridge barriers,testing criteria for safety performance of in-service barriers were determined through observation and analysis of real traffic volume.The evaluation methods for safety performance of in-service bridge barriers considering both safety of major structure of bridge and crash performance of barriers were developed using mechanical analysis and 3D finite element simulation.The reconstruction plan of in-service bridge barriers possessing double barrier structure was designed.The results show that(1) the vehicle type accounting for a great proportion in real traffic volume or the vehicle type requiring major protection should be selected as the typical vehicle for crash testing for in-service bridge barriers,and the 85 percentile of operating speed of real traffic volume should be assumed to be the impact velocity;(2) Safety performance evaluation of in-service bridge barriers should include both crash performance evaluation and safety evaluation of major structure of bridge;(3) the reconstruction plan which combining inner beam-column barrier with external assembled barrier can meet the safety demands of major structure of bridge and the crash level is SS;(4) The reconstructed barrier may harmony with landscape by optimum design on the premise that the crash level can be guaranteed." @default.
- W2383660427 created "2016-06-24" @default.
- W2383660427 creator A5024710279 @default.
- W2383660427 date "2010-01-01" @default.
- W2383660427 modified "2023-09-24" @default.
- W2383660427 title "Study on Safety Performance Improvement Methods of In-service Highway Bridge Barriers" @default.
- W2383660427 hasPublicationYear "2010" @default.
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