Abstract
Roadside safety barriers when struck by an errant vehicle should
redirect the vehicle away from the hazard within a narrow angle so that it follows the line of the barrier while at the same time does not gyrate, overturn or result in any significant damage to the impacting vehicle, or subject the occupants to life- threatening decelerations. This paper investigates the performance of the innovative roadside barriers consisting of Grade 250 mild-steel corrugated plates and Grade 1200 ultra-high strength steel tubes under impact load. Drop weight tests producing impact energy equal to 4.7kJ are conducted on small scale of the proposed barriers to explore the impact force and deflection history responses. The load is transferred through a cone-shape indenter. Barriers consisting of mild-steel flat plates (Grade 250) and high strength (Grade 800) or mild-steel (Grade 350) tubes are also tested as control specimens and the results are compared with those obtained from the tests on corrugated ultra-high strength barriers. The experimental results demonstrate the superior mechanical behaviour of the proposed barriers.
redirect the vehicle away from the hazard within a narrow angle so that it follows the line of the barrier while at the same time does not gyrate, overturn or result in any significant damage to the impacting vehicle, or subject the occupants to life- threatening decelerations. This paper investigates the performance of the innovative roadside barriers consisting of Grade 250 mild-steel corrugated plates and Grade 1200 ultra-high strength steel tubes under impact load. Drop weight tests producing impact energy equal to 4.7kJ are conducted on small scale of the proposed barriers to explore the impact force and deflection history responses. The load is transferred through a cone-shape indenter. Barriers consisting of mild-steel flat plates (Grade 250) and high strength (Grade 800) or mild-steel (Grade 350) tubes are also tested as control specimens and the results are compared with those obtained from the tests on corrugated ultra-high strength barriers. The experimental results demonstrate the superior mechanical behaviour of the proposed barriers.
| Original language | English |
|---|---|
| Title of host publication | Analysis and Practice of Protective Structures |
| Subtitle of host publication | Proceedings of the 4th International Conference on Protective Structures (ICPS4-2016), Beijing, China, 18-21 October 2016 |
| Editors | Zhong-Xian Li, Hong Hao, Xiuli Du, Chengqing Wu |
| Publisher | Tianjin Chengjian University & Tianjin University |
| Pages | 519-528 |
| Number of pages | 10 |
| Publication status | Published - 2016 |
| Event | International Conference on Protective Structures (ICPS 2016) - Beijing, China Duration: 18 Oct 2016 → 21 Oct 2016 Conference number: 4th https://www.aconf.org/conf_67645.4th_International_Conference_on_Protective_Structures_(ICPS4).html http://www.globaleventslist.elsevier.com/events/2016/10/international-conference-of-protective-structures-icps/ |
Conference
| Conference | International Conference on Protective Structures (ICPS 2016) |
|---|---|
| Abbreviated title | ICPS 2016 |
| Country/Territory | China |
| City | Beijing |
| Period | 18/10/16 → 21/10/16 |
| Internet address |
Keywords
- Corrugated plates
- Innovative roadside barriers
- Protective structures
- Drop weight impact test
- Ultra-high strength steel tube