Research on High Crashworthiness Level Bridge Barrier with Limited Working Width

Abstract:

The distance between barriers of lower deck and bridge piers of upper deck is small in Luotang River Double-Deck Viaduct. And so impact accidents with barriers of lower deck will result in vehicle frontal impact with bridge piers of upper deck, which will cause serious consequences for the main structure of bridge. So it is necessary to design a special barrier for bridge pier protecting. A kind of composite barrier is put forward considering safety performance, landscape, economic and other factors. This barrier adopted impact resistant steel as upper part and reinforced concrete wall as lower part. The barrier safety performance was evaluated by means of computer simulation with simulation models checked through full-scale impact tests results. The analysis results indicate that this barrier can protect bus with impact energy of 520kJ, unit truck with 650kJ and tractor-trailer truck with 894kJ, far higher than the highest impact energy 520kJ in current standards, and the entire performance index can meet standard requirements. It can be sure that during the impact process the deformed barrier and incline-out vehicles cannot collide with bridge piers of upper deck.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1521-1526
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1521
• Online since: September 2013
• Authors: Shu Ming Yan*, Ning Jia, Xin Wang, Liang Ma, Xiang Zhang, De He Li, Ya Ping Liang
• Keywords: Barriers, Finite Element Method (FEM), Safety Performance Evaluation, Structure Design, Traffic Engineering

References

[1] JTG D81-2006. Specification for Design of Highway Safety Facilities[s].

[2] JTG T F83-01-2004. Evaluation Specification for Highway Safety Barriers[s].

[3] Dezao Hou, Yubo Yuan, Manjuan Yang, et a1. Study on Safety Performance Improvement Methods of In—service Highway Bridge Barriers[J]. Journal of Highway and Transportation Research and Development, 2010, 27 (05)：110—116.

[4] Xiang Shu, Xiaoqing Zhang, Xiaoqing Huang, eta1. Finite Element Analysis on Optimum Design of Expressway Guardrail System[J]. Journal of Highway and Transportation Research and Development, 2006, 23 (5)：121—125.

[5] Shuming Yan, Bin Hui, Wei Li, eta1. Safety Evaluation on a Special—high Level Crashworthy Bridge Barrier Based on Impact Analysis[J]. Special Structures, 2010, 27(1)：66—70.

[6] Yonggang Tai. Simulation and Experiment of Crashworthiness for Combined Bridge Guardrail[J]. Journal of Traffic and Transportation Engineering, 2010, 10(1)：94—100.

[7] Guoren Lu, Shuming Yan, Shufeng Bai, eta1. Terminal Development of a New Type of W—beam Guardrail[J]. Journal of Traffic and Transportation Engineering, 2008, 8(6)：53—56.

[8] Zhenghao Lei, Zhao Yang. Study on the Passenger Safety during the Impact Process of Automobile against Fence[J]. Journal of Vibration and Shock, 2006, 25 (2)：5—11.

[9] Peng Zhang, Deyuan Zhou. Accuracy Analysis of a Guardrail Impact Simulation Based on ANSYS／LS—DYNA [J]. Journal of Vibration and Shock, 2008, 27(4)：147—176.

[10] Yi Wu, Ping Zhu, Yu Zhang. Research on Crashworthiness of SUV by Side Impact Simulation [J] . Machinery, 2006, 44 (7) ：31—33.

[11] Wengno Yuan, Xianlong Jin, Xiaoyun Zhang, eta1. Finite Element Simulation and Performance Study of Vehicle Crash Based on Parallel Computing[J]. Journal of System Simulation, 2004, 16(11)：2428—2431.

[12] Shuming Yan. Feasibility Analysis of Barrier Safety Evaluation with Finite Element Simulation Method [J] . Journal of Vibration and Shock, 2011, 30 (1) ：152—156.