A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on the Crashworthiness Optimization of Curved-Road Concrete Barriers
In order to optimize the crashworthiness of curved-road concrete barriers in which the curve-road radius is 400 meters, based on the NJ concrete barrier, a "vehicle-curve road-barrier" integration model is established. The six cross-section parameters of concrete barriers are regard as factors, five levels for each factor. The optimal results are obtained using the orthogonal experimental design methods. The L25(56) orthogonal table is used for the simulation test arrangement, the SPSS statistical package is used for the variance analysis of simulation results. Subsequently, using the optimal results, based on the foundation shape of the NJ concrete barrier, a "vehicle-curve road-barrier" integration model including the foundation of concrete barrier is established. Simulation results show that the integrity of the concrete barrier stays intact, and the assumption of "the concrete barrier bottom node fix" used in orthogonal experimental design is practicable and the foundation shape of the NJ concrete barrier can be used directly in curved-road concrete barriers. Finally, the forces and stresses acting on the concrete barrier during the collision between vehicle and barrier is computed. A reinforcement project of curved-road concrete barriers is suggested.
Research on the Crashworthiness Optimization of Curved-Road Concrete Barriers
In order to optimize the crashworthiness of curved-road concrete barriers in which the curve-road radius is 400 meters, based on the NJ concrete barrier, a "vehicle-curve road-barrier" integration model is established. The six cross-section parameters of concrete barriers are regard as factors, five levels for each factor. The optimal results are obtained using the orthogonal experimental design methods. The L25(56) orthogonal table is used for the simulation test arrangement, the SPSS statistical package is used for the variance analysis of simulation results. Subsequently, using the optimal results, based on the foundation shape of the NJ concrete barrier, a "vehicle-curve road-barrier" integration model including the foundation of concrete barrier is established. Simulation results show that the integrity of the concrete barrier stays intact, and the assumption of "the concrete barrier bottom node fix" used in orthogonal experimental design is practicable and the foundation shape of the NJ concrete barrier can be used directly in curved-road concrete barriers. Finally, the forces and stresses acting on the concrete barrier during the collision between vehicle and barrier is computed. A reinforcement project of curved-road concrete barriers is suggested.
Research on the Crashworthiness Optimization of Curved-Road Concrete Barriers
Lei, Zhengbao (author) / Liu, Lan (author) / Peng, Zuo (author) / Hou, Shijing (author)
Ninth International Conference of Chinese Transportation Professionals (ICCTP) ; 2009 ; Harbin, China
ICCTP 2009 ; 1-10
2009-07-23
Conference paper
Electronic Resource
English
Research on the Crashworthiness Optimization of Curved-Road Concrete Barriers
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