Cliff Lift Bridge – UK

A New Design for an Old Lift

The original Shanklin Cliff Lift, constructed around 1891, was designed

to cater to the growing tourist trade by providing a convenient

shortcut from the cliff top to the esplanade, 45 meters below. This lift

significantly reduced the need for lengthy cliff top or zig-zag walks.

Over the years the harsh marine environment had impacted the lift,

and an inspection in 2015 forced its closure for health and safety

reasons. This accelerated the project programme as the client wanted

the new lift operational in time for the 2017 summer season.

In January 2017, MCM Construction appointed us to design, supply,

and install the replacement cliff lift bridge. The project presented

significant technical and logistical challenges due to the fragility of the

cliff edge. The design constraints required the total weight, including

glass, steel frame, floor, and roof materials, to not exceed 12.6 tonnes.

Additionally, the eroding cliff and the conditions of the cliff top road

imposed further restrictions, necessitating rigorous checks and

monitoring throughout the build process.

The new steel structure utilised a Vierendeel truss design,

characterised by rectangular openings and fixed joints capable of

transferring and resisting bending moments. The two main truss

modules were pre-dressed with aluminium framing at our Christchurch

facility to facilitate on-site glazing. Specially designed trestles were

constructed to support the partial off-site assembly, saving time

during on-site installation.

To reduce weight and maintenance, a GRP deck construction

was employed. A lightweight insulated membrane roof with an

incorporated roof hatch was also used, allowing easy access to the lift

plant roof for equipment installation and removal.

Working alongside MCM Construction and the Isle of Wight Council

was a collaborative and enthusiastic experience. The combined

efforts and dedication of all parties involved ensured the successful

opening of the new bridge in time for the summer season.

This project highlights the importance of innovative design and

meticulous planning in overcoming environmental and logistical

challenges, which ultimately helped us to deliver a safe and functional

solution for the Shanklin Cliff Lift.

Ref: 118445-G54



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