20 Ropemaker is a 27-storey (110m) structure designed with a series of stepped terraces on the corner of Ropemaker Street and Finsbury Pavement.
The project included 22 floors of office space (419,093 sq ft), five accessible roof terraces and three basement levels, built to high environmental standards.
Design considerations focused on the multi-tiered structure, a complex cladding finish and a restricted footprint due to the neighbouring Moorgate train station.
Installation
We designed and installed an access solution using multiple Hoists and a terrace-based CAS Tower.
The design team worked closely with the client from the start, using federated 3D modelling and clash detection to enable coordination with the structure’s other permanent and temporary works.
The unique building design led us to devise a 22m high CAS Tower based on the terrace at Level 14, to bridge the stepped profile, allowing hoists to be tied in and service the building on two different elevations.
On the side elevation, this allowed two twin passenger goods hoists to operate from ground level to Level 19.
On the front elevation, a 5000kg transport platform was based off a terrace and tied in to the CAS Tower, with slab loads certified by Structural Engineers before sign-off.
CAS Tower sections were pre-assembled on the ground before being craned into position onto the terrace.
Ian Shinn, Project Director, Skanska
Brogan Group worked closely with the Skanska 20 Ropemaker team, creating access solutions that overcame a unique combination of challenges that included a stepped design on a 110m building with a restricted footprint for all site workers. Having the Brogan Group design team fully integrated into Skanska’s federated 3D modelling process allowed efficient progress on the project that will deliver 450,000 sq. ft of office space and meet high environmental targets.