Used Tyres To Protect Bridges from Ground Movement
- Bridge structures suffer from soil movements and warp that can lead to structure damages and collapses
- Using a material made from discarded tyres can double the resilience of these structures
- This low cost, innovative method could help ensure safe and sturdy infrastructure in disaster prone regions
- In UK alone, 50 million tyres are discarded each year. (260 million tyres worldwide annually)
New research published in the Journal Earthquake Engineering and Structural Dynamics has described a new method of protecting bridge infrastructure in disaster-prone regions using used tyres that may otherwise be sent to landfill, where this is permitted. Many authorities have banned use of landfill sites for old tyres.
The New River Canal bridge was damaged from a 7.2 magnitude earthquake that rocked the border town of Calexico, CA, USA in 2010.
Photo: FEMA Photo Library
Academics from the Universities of Surrey and Thessaloniki (Greece) looked at how bridges, in particular Integral Abutment Bridges (IABs), react to stress and how simple measures could be taken to protect this vital infrastructure from wear-and-tear, as well as in the event of extreme dynamic impacts such as earthquakes.