COMPLEX CHALLENGES ... MADE SIMPLE

RoC Consulting is a highly experienced and qualified team of civil, structural, geotechnical & geo-environmental engineers CASE STUDY CASE NO. ,

OFFICE SECTOR elevation of the building and the expressed cantilever North Tower Key facts PROJECT OVERVIEW elevation. Project No. 1 Spinningfields, No. 1 Spinningfields is an iconic The design solution was for an Manchester Civil Engineering new 370,000 sq ft commercial integrated services structure Client office tower building over 22 above ground floor level to permit Architect floors with two basement storeys. flexibility in the efficient distribution SimpsonHaugh Sheppard Robson The building is the final in a series of services. A steel framed Project duration of three schemes making up superstructure with composite 2014 - 2018 Hardman Square, a key part of the design was adopted for the tower. Value: Structural Engineering £68.5m Spinningfields’ masterplan.

CASE STUDY CASE The ground floor structure was RoC Earth Sciences undertook a designed as a folded reinforced detailed geotechnical investigation concrete plate to accommodate to delineate the sandstone/gravel complex ground level changes interfaces across a fault line. across the site above the two-storey Earth Sciences basement. Access and egress The existing single-storey basement to the basement car park was from the previous Quay House achieved by break through onto the building was retained during the No. 3 Hardman Square basement demolition process to assist with car park. construction and excavation works. The walls from this basement, The substantial North and East although not being used for load- elevation cantilever required bearing purposes, have been the development of a carefully retained as part of the new two- considered construction sequence storey basement scheme, to to integrate the cladding installation reduce the extent of new walls programme with the structural required within the new structure, programme in order to manage and to minimise disruption to the structural deflection, within cladding busy roadway thereby erection tolerances. maintaining traffic flow, on this key city centre route.

Furthermore, this section of Quay Street, was subject to temporary lane closure to provide the principal site access, therefore retention maintenance of road was vital to programme and construction methodology.

CHALLENGES

This iconic building has generated a number of interesting structural challenges, such as the £4.5 million, six-storey cantilever to the east

EAST TRUSS CONCEPT

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