faÇade retention in city-centre development a presentation by clifford devlin
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FAÇADE RETENTION IN CITY-CENTRE DEVELOPMENT A presentation by Clifford Devlin. The age and architectural significance of many of the buildings involved in city-centre projects require complex enabling work. - PowerPoint PPT PresentationTRANSCRIPT
FAÇADE RETENTION IN CITY-CENTRE DEVELOPMENT
A presentation by Clifford Devlin
Façade retentionFaçade retention
The age and architectural significance of
many of the buildings involved in city-centre
projects require complex enabling work.
The design and installation of façade
retention schemes are increasingly being
used as a means of providing modern
accommodation for commercial and
industrial buildings whilst preserving the
external architectural features of historic and
attractive buildings in conservation areas
and city centres.
Clifford Devlin Limited Clifford Devlin Limited
As a specialist in complex city-centre
demolition we have delivered a number of
projects involving listed buildings where
some or all of the external elevations
needed to be retained to conserve the
historical character and continuity of the
area.
We therefore have considerable experience
of designing and installing façade retention
schemes and project managing the entire
process to integrate into the enabling phase.
The ProcessThe Process
1 Design & Approval
Working from architects plans and site
inspections our structural engineer will
design and document the façade retention
scheme.
This will consist of technical drawings, load
calculations, material specifications, and
other data which is submitted to the client’s
engineering team.
A detailed condition survey is carried out
prior to installation to record any existing
defects which are integrated into the final
project plan.
The ProcessThe Process
1 Design & Approval
For large or complex projects we typically
prepare a 3D schematic animation based
on photography and architects drawings
to illustrate the deconstruction
methodology to the project team..
The ProcessThe Process
3 Fabrication
As much of the structure as possible is
fabricated off-site to reduce installation time
on-site and minimise disruption to the busy
city-centre environment.
If piled foundations are required these will be
installed and the pile caps constructed
concurrently.
The ProcessThe Process
4 Installation
The main towers will be transported to site
on low loaders which will usually involve
road closures – we have extensive
experience of preparing an submitting traffic
management plans to TfL and City of
Westminster.
The ProcessThe Process
4 Installation
The structures are lifted into place using a
mobile or tower crane.
The ProcessThe Process
4 Installation
The main towers are connected using waling
beams and clamped to the retained structure
by connecting it to an inner waling beam
with tie rods.
The installation is fully tested and inspected
by the client’s engineers before demolition
commences.
The ProcessThe Process
5 Monitoring
We will inspect and monitor the integrity of
the façade structure throughout the
demolition and build phases by mapping a
series of fixed points on the structure using
laser range finding equipment.
Monitoring will be carried out typically on a
weekly basis and graphs of movement
prepared and compared against agreed
limits.
Our teamOur team
We work with a number of trusted specialist façade retention partners who are employed
by Clifford Devlin under our project management.
Structural Engineers
• Lucking & Clark (over ten years, 10 project some temp works schemes
• Michael Barclay Partnership (5 years, 6 projects)
Steel fabricators/installers
• Apex Steelworks (Crown House, Store Street)
• Graham Wood Structural (Tottenham Court Road)
Project portfolioProject portfolio
Crown House (Aldwych)
A ten-storey building in the heart of
Theatreland was developed into an
upgraded mixed-use development.
Three of its existing listed stone elevations
on Aldwych, Kingsway and Drury Lane
needed to be retained.
We designed a 60 metre eight storey
retention system to support the listed façade
throughout the works which took eight
weeks to fabricate and erect.
Value: £2.8m
Duration: 10 months
Architect: Sidell Gibson
Principal Contractor: ISG
Developer: UK and European Investments
Project portfolioProject portfolio
Crown House (Aldwych)
The structure was supported on piled
foundations due to the existence of a large
diameter service tunnel associated with the
former Victorian tram link.
We liaised extensively with Westminster
Council to obtain permission for temporary
road closures, traffic diversions and closure
of footpaths to enable the structure to be
delivered/erected.
Value: £2.8m
Duration: 10 months
Architect: Sidell Gibson
Principal Contractor: ISG
Developer: UK and European Investments
Project portfolioProject portfolio
227-233 Tottenham Court Road
A former grand retail and office building
dating back to end of the 19th Century
needed to be demolished to redevelop the
site into a prestigious retail and office
complex.
Being located in a ‘conservation area, the
buildings extensive ornate’ terracotta façade
was to be retained. A scheme was
developed, where the façade was supported
using a combination of part external
temporary steel support and by installing the
new steel frame within the structure, with
modifications to support the structure in the
temporary case during demolition. Value: £2.7m
Duration: 8 months
Principal Contractor: Costain
Project portfolioProject portfolio
227-233 Tottenham Court Road
This ensured the busy thoroughfare of
Tottenham Court Road was not restricted by
a heavy structural support and a substantial
part of the new foundations and structural
steel work were installed concurrently with
the demolition works.
Value: £2.7m
Duration: 8 months
Principal Contractor: Costain
Project portfolioProject portfolio
Barrett Street, London W1
The redevelopment of the flag ship store and
administrative headquarters of clothing chain
Reiss’ located in a street adjoining Oxford
Street required the demolition of existing
buildings on the site which had been
occupied by the London School of Fashion.
The original brick façade at the Picton Place
side was to remain and therefore required a
façade retention structure was installed to
provide lateral support to the façade during
the demolition and construction process.
Duration: 7 months
Value: £1.1m
Architect: Squire & Partners
Project Managers: Buro 4
Project portfolioProject portfolio
Barrett Street, London W1
Various temporary support structures to
retaining walls were required due to
extensive groundworks that were carried-out
to the foundations.
Temporary supports were provided to the
adjacent buildings to serve as protection
during the construction process.
Duration: 7 months
Value: £1.1m
Architect: Squire & Partners
Project Managers: Buro 4
FAÇADE RETENTION IN CITY-CENTRE DEVELOPMENT
A presentation by Clifford Devlin