Articles about CPD

A new 16.5m span, sustainable FRP footbridge with a design life of 120 years incorporating a bespoke balustrade of marine-grade polished steel and infill panels with a protective rust patina.

Dates now available for CPD events in November, December 2023 and into early 2024
Email steven@lifespanstructures.com to arrange a suitable date & time

A short video that explains how an existing closed footbridge in Colinton Dell was refurbished using the latest FRP bridge technology by Lifespan Structures

Colinton Dell is a steep-sided gorge and wildlife refuge on the Water of Leith, just north of the old village of Colinton on the outskirts of Edinburgh.
Today walkways and a cycle path take visitors to the ruined Redhall Mill and past Kate's Mill, where paper for the Bank of Scotland's first banknotes is said to have been made.
As a result of a Lifespan e news letter campaign in the autumn of last year we received an enquiry from the Mott MacDonald team in Edinburgh.

After several on line meetings and an on site visit we developed a solution for the Client Edinburgh City Council and introduced CRL Scotland to the project team as a specialist contractor that was capable of delivering the project.

Following a tender process in early 2023 CRL Scotland were awarded the project valued at circa £250,000 as reported in March of this year

The objective of the project was to provide a replacement deck for the existing Colinton Dell Rustic Footbridge with a design life of 120 years. The existing timber deck on the footbridge was in very poor condition and a new Lifespan Structures (FRP) deck was designed, manufactured & installed by CRL Scotland as a replacement so that the bridge can be re-opened in July of this year

Due to the very challenging location of the site the CRL team came up with a carefully thought out plan as to how they would remove the old bridge and be able to safely install the new Lifespan FRP deck sections.

Additional challenges for the team included a high pressure gas main adjacent to the existing bridge, the steepness of the Dell either side of the bridge location and that everything had to come through the famous Colinton Dell Tunnel.

The new Lifespan Structures FRP deck was designed in house to conform with a specification provided by Mott MacDonald. The new deck of approximately 28m span was supplied in 5 sections of 5.7m long x 2.5m wide and 65mm thick that are mechanically fixed onto the existing longitudinal steel beams, that are in good condition. A new 1.5m high galvanised steel parapet was also be installed.

Watch the video here of the completed bridge
https://youtu.be/7F7L-bdyUPE

Due to economic & climate considerations Clients demand ever more sustainable options when trying to repair or extend the life of their bridges rather than its complete replacement. Bridges often require repairs and eventually wholescale replacement of key structural elements during its service life & these can be very expensive and disruptive to the users of the bridge. Perhaps the most disruptive and costly is that of the deck replacement which could be steel, concrete or a timber deck for pedestrians, cyclists and vehicle trafficking.

Almost 7 years ago one of our Local Authority Clients issued a tender for a project that required a new simply supported 8m single span bridge of 1m width with a standard anti climb parapet. A variety of typical bridge construction types were permitted including steel, timber and an alternative using Lifespan resin infused FRP composites. With input from the Client additional considerations were made as to the likely cost and regularity of maintenance works for each of the possible bridge types in order to ascertain a whole life cost for each of the options.

EuCIA publishes update on future Eurocode for composites

As 2022 continues to be an extremely busy time for Lifespan Structures we are pleased to announce that Steven Dunn has recently joined to further strengthen our specialist team. A civil engineer with over 25 years of experience in providing technical and commercial support to Clients, specifiers and contractors he has strong knowledge in specialist areas including structural concrete repair, structural strengthening utilising carbon fibre plate (CFRP), composites, adhesives & ultra-high modulus plates.

We are busy taking bookings for our technical seminars which can be conducted at Clients offices / hybrid or on-line to suit individual requirements. The two key presentations available are:
Bridging The Gap An introduction & history of composites in construction, the feasibility / design / supply & installation of recent Lifespan resin infused FRP bridge case studies, financial & economic benefits versus traditional materials
The Lifespan Bridge Management Service Tailored to the requirements of all bridge owners and stakeholders the CPD identifies the key actions required during the life of a footbridge, from initial concept to end of service and everything in between.

Director John Drewett is presenting a paper on Fibre Reinforced Polymer (FRP) Composites at the IStructE CPD on Alternative Materials in Sterling on the 19th September 2017. The presentation will cover the following;
• Introduction to FRP composites
• History of FRP composites in construction
• Recent case studies
• Cost/benefit comparison with traditional materials
• Environmental benefits
See John on Tuesday 19th Sept 2017 2:30pm for 3:00pm at Stirling Court Hotel, University of Stirling, Airthrey Rd, Stirling, FK9 4LA
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