CORNERSTONE FOR CONSTRUCTION EXCELLENCEsussex.constructingexcellence.org.uk/wp-content/uploads/sites/8/20… · INTRODUCTION Elekta 2023 Global Oncology HQ ... and break-out areas,

CORNERSTONE FOR CONSTRUCTION EXCELLENCEKIER CONSTRUCTION – CRAWLEY

Presented byPhilip Skottowe, Gary Pemberton & Andy Plail

27 SEPTEMBER 2017

INTRODUCTION

�� Elekta 2023 Global Oncology HQ

�� Bridgecore Developments Selected

�� Technical & Financial Solutions

�� Unconditionality

�� Building Contract Let to Kier

DESIGN

RHP ARCHITECTS MASTER PLAN CONCEPT

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3.2 Scale, Design and Layout

• The proposals consist of 3 elements; new office and demonstration buildings (ranging from 4 to 5 storeys), the decked car parking facilities (ranging from 1 to 4 storeys) and the external landscaping.

• Building A addresses the important transition between Fleming Way and London Road at the north west gateway to the Manor Royal estate with Building B providing a significant frontage to London Road. The largest massing is located to the northwest corner of the site in line with the Manor Royal Design Guide.

• The form of Building A follows a continuous floorplate, cranked around the top corner of the site to contain a central atrium space. Where the southern elevation of Building A returns into the site, a break is provided between the built forms. To the south of this break the more linear design of Building B addresses London Road and provides enclosure along the western boundary.

• All cores to Buildings A and B are internal except for the 2 east stair cores of Building A which are expressed as monolythic objects plugging into the main facade

• Forming a corner on two important thoroughfares of the site offers the opportunity for a series of significant elevations progressing along Fleming Way, around the gateway roundabout and south along London Road. Therefore the design does not propose a hierarchy of elevations of varying architectural language; the road facing elevations and campus facing elevations are of equal importance and status.

• The most significant decked car park (CP-A), is located to the south east corner of the site, this not only moves the mass of the car park structure away from the road, but also helps to minimise the impact of less desirable existing elevations to the east of the Cornerstone site.

• The secondary single storey open decked car park (CP-B), is partially below ground to largely mitigate it’s impact when viewed from outside the site.

• The considered design of the CP-A’s perforated metal facades ensures that it does not have a detrimental impact on the campus.

• The high quality approach to design is reflected across all elements of the campus.

Above Right: Concet SketchesRight: Campus Concept Sketch

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Defining the Development Principles

As a result of the design development process the following design principles were established:

• The development will be delivered in 2 phases.

• Areas most suitable for the largest massing are the north western corner of the site and the western boundary.

• Multi-storey car parking should be located to the south of the site with the largest mass to the south east.

• Enclosure should be provided to the site through built forms and landscaping.

• A high quality landscape design incorporating varied amenity space is a priority.

Right: Diagram Demonstrating Landscape and Campus Design Principles

1. Maximise Opportunities for Varied Flexible Amenity Space

2. Boundary Treatment and Building Locations Provide Enclosure to the Site, Ensuring

Internal Site Spaces are Desirable Places to Occupy

3. Main Entrances are Located Opposite Each Other to Create dialogue Between

Buildings and to Give Both a Presence on the Main Pedestrian Plaza

4. Pedestrian and Cyclist Priority Route with Access for Drop-off

5. Angled Southern Elevation to Building B Draws Visitors into the Site

6. Opportunities for Meaningful Links Through to Existing Site

7. Vehicular Movement Kept Away From Pedestrian/Cycle Priority Route

8. Central Landscaped Boulevard Ties Space Together to Create a Campus Site From

the Point of Access

9. Minimise Impact of Less Desirable Neighbouring Elevations

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1

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3

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5

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6

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3.2 Scale, Design and Layout

• The proposals consist of 3 elements; new office and demonstration buildings (ranging from 4 to 5 storeys), the decked car parking facilities (ranging from 1 to 4 storeys) and the external landscaping.

• Building A addresses the important transition between Fleming Way and London Road at the north west gateway to the Manor Royal estate with Building B providing a significant frontage to London Road. The largest massing is located to the northwest corner of the site in line with the Manor Royal Design Guide.

• The form of Building A follows a continuous floorplate, cranked around the top corner of the site to contain a central atrium space. Where the southern elevation of Building A returns into the site, a break is provided between the built forms. To the south of this break the more linear design of Building B addresses London Road and provides enclosure along the western boundary.

• All cores to Buildings A and B are internal except for the 2 east stair cores of Building A which are expressed as monolythic objects plugging into the main facade

• Forming a corner on two important thoroughfares of the site offers the opportunity for a series of significant elevations progressing along Fleming Way, around the gateway roundabout and south along London Road. Therefore the design does not propose a hierarchy of elevations of varying architectural language; the road facing elevations and campus facing elevations are of equal importance and status.

• The most significant decked car park (CP-A), is located to the south east corner of the site, this not only moves the mass of the car park structure away from the road, but also helps to minimise the impact of less desirable existing elevations to the east of the Cornerstone site.

• The secondary single storey open decked car park (CP-B), is partially below ground to largely mitigate it’s impact when viewed from outside the site.

• The considered design of the CP-A’s perforated metal facades ensures that it does not have a detrimental impact on the campus.

• The high quality approach to design is reflected across all elements of the campus.

Above Right: Concet SketchesRight: Campus Concept Sketch

DESIGN

PHASE 1 – CURRENT SITE PLAN PHASE 2 – FUTURE SITE PLAN

Building A Building A

Building B

Multi Storey Car Parks

Multi Storey Car Park

DESIGN

DESIGN

GROUND FLOOR PLAN

FIRST FLOOR PLAN

SECOND FLOOR PLAN

THIRD FLOOR PLAN

FOURTH FLOOR PLAN

COLLABORATIVE ENTHUSIASTUC FORWARD THINKING

CORNERSTONEVALUE: £36M CLIENT: BRIDGECORE FOR ELEKTA (UK) LTD

The design & build of circa 111,132 sq ft high quality office space and external works, with a new Multi Storey Car Park for 378 cars. The new campus shall provide 2 new office buildings A&B, with Kier Constructing Building A, the MSCP and the extensive landscaping.

Building A follows a continuous floor plate which contains a central atrium space (The largest South of London). The southern elevation returns into the site with a ‘break’ provided between the built forms. The Works include provision of a 378 space decked car park, atrium bridges and sewer/service diversions and new 278 Works. Building A and the Car park is being developed for Elekta who are presently in the neighbouring buildings. Elekta are expanding their Research and Development and main administration facilities to the new premises.

The Contract Value for Kier is circa £36m including the fit out. (Cat B). The construction consists of CFA piles and a ground floor bearing slab. The Superstructure is constructed of a Post Tension Concrete Frame and the envelope consists mainly of curtain wall. The Cat A works include toilets, lifts, Ceilings, Floors with M&E Services. The CAT B includes further office space, meeting rooms, training facilities, café and break-out areas, fully functioning working kitchen and a restaurant. The 378 spaced Car park is a steel frame with concrete decks encased in a steel mesh to 3 elevations. Extensive Landscaping.


CORNERSTONE FACTS

�� Value: £36m to CAT B fit out�� Area: 10,500 sqm �� Client: Bridgecore�� End User: Elekta�� Main Contractor: Kier�� Fund: Santander�� Architect: tp bennett�� Engineer: Price & Myers�� PM & QS & CDMC: Quantem�� M&E: NG Bailey�� Concrete Frame: MJ Gallagher�� Groundwork’s: Drivepoint�� Cladding: Fleetwood�� Dry-lining & Ceilings: Astins�� Steel: Builders Beams�� Duration: 96 weeks – Completion due November 2017�� Sectional Completion of MSCP: Handed over to Elekta 01 February 2017�� Current Programme Week: 90 of 96


EARLY DAYS


PT FRAME CONSTRUCTIONFor the Cornerstones project there were originally two options one in steel composite and one in RC Flat slab 300mm. As an alternative to these a PT solution was suggested as VE and then adopted utilising a 250mm PT slab for the 9 x 8m grids which offered a lighter and cheaper solution and also removed the logistics headache of handling large steel members on site. It also removed the need for large cranes and traffic management on the surrounding busy roads and roundabout.

The benefits of PT are largely as follows;�� Reduction in slab depth compared to RC of up to 30%

�� Reduced Concrete and Reinforcement.

�� Quicker placement time.

�� Reduced number of traffic movements as less material = less deliveries

�� Potential reduction in craneage

�� Reduced floor to floor height, which is especially advantageous for tall buildings which may benefit from an additional floor level or reduction in external cladding system.

�� Better deflection control for the designer.

�� Flexibility in design allowing larger spans and therefore increased options for end user.

�� Reduced foundation requirements.

In general a PT solution should always be favourable compared to RC when larger spans are required (>6m), cheaper than steel and offers greater flexibility in design.


CORNERSTONE


CORNERSTONE


CORNERSTONE


CORNERSTONE – PROGRESS


CORNERSTONE – PROGRESSCORNERSTONE – PROGRESS

R:\Active Projects\Architects\A10797 Elekta Site\Graphics\170925 A4L Cornerstone for Construction Excellence\170926 A10797 A4L Cornerstone for Construction Excellence.indd

END OF PRESENTATION SITE TOUR

Documents

CORNERSTONE FOR CONSTRUCTION EXCELLENCEsussex.constructingexcellence.org.uk/wp-content/uploads/sites/8/20… · INTRODUCTION Elekta 2023 Global Oncology HQ ... and break-out areas,