A bridge on the new 2.5km Bognor Regis Northern Relief Road, currently under construction by specialist contractor Kelly Formwork and main contractor HOCHTIEF, is benefitting from the use of the latest in innovative composite bridge solutions from RMD Kwikform.
Constructed to relieve congestion on the traffic black spot between Felpham and Bognor Regis, the new single carriageway road has to cross the main train line into Bognor Regis. This required a new 16 span, 500 linear metre long bridge to be constructed by concrete specialist Kelly Formwork, using new Paraslim composite bridge equipment from RMD Kwikform.
Commenting on the project, Doug Pratt, Project Director for HOCHTIEF said,
“We have used the original Paraslim system from RMD Kwikform for many years, as it is a tried and tested product. Having recently changed the design to incorporate a new fixing system, removing the need for ties that protruded out from the bridge deck, we recognised the clear health and safety and productivity advantages this new innovation could give us.”
Steve Cowell, project manager for Kelly Construction, added:
“Being one of the first projects in the UK to use the new Paraslim system, we have been able to compare both side by side, due to the need to cross a live rail. This came about because the process of certifying the new Paraslim design with Network Rail wasn’t quite completed when we first started the job.
“We have, therefore, witnessed first hand the much simpler process of using the new Paraslim system. Firstly, you don’t have any issues of protruding ties, making it safer onsite. Secondly, striking and removal of the system is much quicker and easier by simply taking out stoppers and unscrewing the bolts.
“So all in all, the benefits of using it compared to the previous arrangement are significant for both health and safety and productivity.”
The Paraslim system is used to form the reinforced parapets for the bridge, whilst also providing a safe platform for site workers. Thanks to early involvement in the project, RMD Kwikform engineers were able to support the Kelly Formwork team, by providing design information for the positioning of anchors needed to secure the Paraslim system. This allowed the anchors to be cast into the precast beams during fabrication, saving time and ensuring the Paraslim modules could be erected onsite before the beams were lifted into place, thus immediately opening a safe access and materials platform along the bridge deck.
Commenting on the project and the use of the new Paraslim system, Tom Day of RMD Kwikform, said:
“When you make changes to a system like Paraslim, which has been used successfully for composite bridge construction in the UK for over 20 years, it is important to get industry leaders like Kelly Formwork to embrace the changes and recognise the benefits.
“Having shown them the system in action, and in particular the new tie solution that uses standard tie bar, they were keen to try it. By removing the health and safety risks of tripping, punctures and impalement on the protruding tie, we have really made a significant impact on overall site safety.”
In addition to Paraslim, Kelly Formwork has used a combination of aluminium Alshor Plus and steel Rapidshor shoring to support the construction of the bridge piers, with Rapidshor staircase access systems also provided.