Unique Techniques Core Billion Pound Project

Development of the £2.2 billion Nova, Victoria project, which will see a dramatic shift to the London Victoria neighbourhood, is underway and has deployed unique and manufactured formwork methods to guarantee the project achieves its tight construction deadline

Located in the heart of London, this groundbreaking development project will change the city’s architectural environment and establish a new London landmark. Set to create an 897,000 square ft development, the project will comprise of five modern buildings split into Grade A offices, contemporary high quality apartments and restaurants, all inside a new pedestrianised public area.

Four of Europe’s most cutting-edge architectural firms have teamed up to create the project’s complicated design, which is expected to be finished by July 2016. PC Harrington, a seasoned concrete specialist, has been contracted to complete the project’s first phase’s reinforced concrete (RC) frame parts.

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Because this project was so complicated, PC Harrington turned to formwork and scaffolding systems provider and manufacturer, PERI Ltd, for technical advice and custom solutions for required concrete finishes. The ambitious project needed an uncommon specification of unique and inventive fabrications being implemented as a result of customised formwork systems throughout the RC frame construction phase.

For a project of this scale, the necessity for top-down construction and white columns with high specifications was expected, according to Lincoln Charles, engineering manager at PC Harrington.

All of PERI’s column formwork and radius formwork, including the VARIO and RUNDFLEX models, were designed and manufactured off-site before being shipped to the yard in Southall.

Engineer at PERI, Dan Mounter, outlines the utilisation of their equipment for the project and how it benefited the construction process: “To support the top-down construction, we utilised the TRIO 1.2m high panel range. As the technique of construction was top-down, the panels had to be lighter and easier to transfer throughout the site to avoid excessive delays in the construction process, as there was no crane access with the above slabs in place.

“By employing normal TRIO panels, PC Harrington could obtain a greater pour rate, using 20mm tie rods permitting 80kN pressure. PERI’s concrete pump connectors were also deployed throughout the project to enable the concrete to be poured via the panels as access from above was not accessible due to the old slab being in situ.

“The project’s column specs also had special needs. PC Harrington requested a blemish-free feature column with chamfered corners and specific box outs at the top and bottom without any face fittings that would show up on the concrete surface.

“By utilising the VARIO Girder formwork system, the architect’s concept was achieved due to its bespoke design flexibility allowing the required width of panels and tie hole positions.

“The specification had its challenges. Each time they were struck, the top and bottom box elements had to be constructed in such a way that they wouldn’t break apart into tiny fragments. This was achieved by milling the box outs at variety of different angles so the box could slide together, however the joints had to be tight to avoid any grout loss when the concrete was poured. As part of the overall PERI service, the fabrication section at PERI provided samples of the box outs for PC Harrington to approve before final manufacturing.”

The first part of the building project is anticipated to be complete by April, with the multi-billion pound project set to completion in July 2016, four years after it was first planned.

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Last Updated on December 29, 2021

Indra-Gupta

Author: Indra Gupta

Indra is an in-house writer with a love of Newcastle United and all things sustainable.

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