Freeway Drain Grates Case Study

hrl: mitigates potential safety issues with freeway drainage grates

Challenge

Freeway Drain Grate

During road and freeway work upgrades, existing drainage grates that are normally out of traffic flow were placed into traffic flow. While the grates had previously been tested in accordance with Australian Standard 3996, the client was concerned that the system holding down these grates would fail due to repeated vehicle loading potentially resulting in grates being flung into traffic and drainage pits being exposed. To avoid these two potential safety risks, the client needed to develop and test a lock-down system for the grates to ensure they could withstand the increased vehicle cyclic loading. 

Solution

The client engaged hrl: to review the installation procedure, and assist the manufacturer to design a new pre-loaded locking system for the grates. Not satisfied with the theoretical calculations alone, this Australian manufacturer wanted to prove the design by testing the system to ensure its safety. Designing and implementing a comprehensive testing process, hrl: installed strain gauges to the grate, frame, and hold-down system to measure forces and determine stresses during a dynamic loading event from a B-Double semi-trailer (the worst-case loading scenario). Test results were documented in a thorough project report.

Results

The testing showed that stresses and loading in the grate lock-down system were within allowable limits to ensure a safe working life. The client was satisfied that hrl: had proven the safety of their supplied design, mitigating all potential safety risks to road users. 

 

 

"World class expertise with real world knowledge."

Barry Nichols

What our clients say:

Are you ready to transform your business performance?

Phone 1800 475 832

Latest News

HRL exhibitor and presenter at PJB Connect 2018 Surabaya Indonesia

Posted by Ken Sidharta on 30 October 2018
HRL exhibitor and presenter at PJB Connect 2018 Surabaya Indonesia
HRL's Tom Copper, Performance Engineer, ...
Posted in: Reliability Power Plants Combustion Optimisation expertise Event  
< Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Next >
 

Sign up: newsletter & updates

 
 

Our certifications

NATA accredited AtS/NZS ISO 17025, AS/NZS ISO 17020NATA Accredited Laboratories number 561.


ISO 9001 Quality Management certied by BSI under certicate number FS605116.

Ready to transform your business performance?

Contact our technical consultants on -
1800 475 832 or info@hrl.com.au to get started today.


See expertise in action:

 
 

Language selector