View source for The Beacon, Eastbourne

==Article in [http://www.newsteelconstruction.com/wp/wp-content/uploads/digi/NSC1803/index.html#/22/ NSC March 2018]==
{{#image_template:image=File:The_Beacon-1.jpg‎|align=right|wrap=true|caption=How Eastbourne’s redeveloped town centre will look|width=400}}
'''Shoppers’ beacon'''<br>
A nautical themed [[Retail_buildings#Shopping centres|shopping centre]] extension is set to reinvigorate Eastbourne town centre. 
''By Martin Cooper''<br>

A new name, new shops, new restaurants and a new [[Leisure_buildings#Theatres and auditoria|cinema]], it is all change for Eastbourne town centre’s leading shopping destination. An £85M extension to the existing Arndale [[Retail_buildings#Shopping centres|shopping mall]] is currently under [[Construction|construction]] and it will provide 22 new retail units, seven restaurants and an eight-screen [[Leisure_buildings#Theatres and auditoria|cinema]]. Once complete, the new enlarged centre will be renamed The Beacon, a name that conjures up images of the town’s coastal history and the nearby Beachy Head Lighthouse.

Andrew Rice, Fund Manager for the centre owners Legal & General says it is never easy to find a new name for a [[Retail_buildings#Shopping centres|shopping centre]] with a 38-year history. “After discussions and explorations, including meetings with key opinion formers in Eastbourne, we agreed unanimously that The Beacon was a great new name.”

According to tp Bennett Project Architect Julie Heron, the nautical idea from the name has been carried over into the [[Design|design]] of the extension. “We have long, curved bulkheads that run either side of the mall, while the elevation opposite the railway station culminates into a ship’s nose feature element that accommodates an entrance to one of the anchor stores.”

Aside from these unique [[Design|design]] features, the entire 16,200m<sup>2</sup> extension is being constructed as a [[Braced_frames|steel frame]], which is partially divided in two by a covered L-shaped pedestrianised street. Officially described as an outdoor space, the street will however offer some weather protection as it will be topped with a [[Steel-supported_glazed_facades_and_roofs|glazed undulating roof]], supported by the main [[Braced_frames|steel frame]]. Cutting across the site, approximately at the point where the L-shaped street cranks, a movement joint splits the [[Braced_frames|steel frame]] into two separate parts via a row of double columns.

To stabilise the large [[Braced_frames|steel frame]], a hybrid [[Concept_design#Structural options for stability|stability solution]] has been used throughout the scheme, according to Caunton Engineering Project Designer Gavin Christie. “The client wanted the [[Retail_buildings#Flexibility|flexibility]] so that tenants could knock down partition walls in the future if stores needed to be enlarged, and so this meant [[Braced_frames#Vertical bracing|cross bracing]] could not be located within internal walls. “Instead we developed a hybrid [[Concept_design#Structural options for stability|stability system]] consisting of full-height shop front [[Continuous_frames|moment frames]], working alongside [[Braced_frames#Vertical bracing|bracing]], which is positioned in staircases and back-of-house areas.”

Overall the extension consists of two lower levels, with retail units located at ground floor and restaurants accommodated at first floor. Towards the centre of the extension there are two further upper floors, a second floor housing the [[Leisure_buildings#Theatres and auditoria|cinema’s]] eight screens, and a third floor accommodating the projection rooms. The [[Leisure_buildings#Theatres and auditoria|cinema]] levels straddle the street, with two second floor [[Design_of_steel_footbridges|footbridges]] spanning the pedestrian thoroughfare. The project’s two anchors stores, Next and H&M, differ from the other retail units as they have two trading floors with their upper levels accessed via internal staircases and elevators.
{{#image_template:image=File:The_Beacon-2.jpg‎|align=left|wrap=true|caption=The main retail element of the scheme takes shape|width=400}}
“Designing a [[Retail_buildings#Shopping centres|retail mall]] with a [[Leisure_buildings#Theatres and auditoria|cinema]] above means there is very little repetition within the frame’s [[Concept_design#Floor grids|structural grid]], as many of the retail units and all of the [[Leisure_buildings#Theatres and auditoria|cinema]] screens are different sizes,” says Mr Christie. With numerous locations having [[Concept_design#Floor grids|column grid]] changes, the project has a fair amount of large [[Steel_construction_products#Plate girders|plate girders]] acting as transfer structures. One notable area that needed transfer structures is a suspended service yard, built above some ground floor retail units. In order to support the yard and take into account the loadings that delivery trucks will exert on this slab, a series of large transfer girders has been installed.

Value engineering plays an important role in most projects’ [[Design|design]] and this scheme is no exception. Having initially been designed by project consultants Clarke Bond, Caunton were employed to take on the project at RIBA Stage 4. “We increased the profile and gauge of the [[Steel_construction_products#Decking for floors|metal decking]] to allow it to span further, which then meant we required fewer beams to support it. The beams we did install were larger members but, even with a slightly higher steel tonnage, the project saved money as the [[Fire_protecting_structural_steelwork|fire protection]] requirement was reduced,” explains Caunton’s Engineering Manager Matthew Shimwell.

Planning and logistics have also played an important role on this scheme as the development is taking place adjacent to a ‘live’ [[Retail_buildings#Shopping centres|shopping centre]] and in the middle of the busy town. Along one elevation, which will eventually accommodate the link between the old [[Retail_buildings#Shopping centres|shopping centre]] and the extension, the new build abuts the old with columns only 100mm apart. New foundations could not be installed close to the existing centre and so one [[Concept_design#Floor grids|grid line]] of new columns is supported on cantilevering footings.

Summing up, Kier Senior Project Manager Alan Quigley says: “Ordinarily we would have [[Construction#Steel erection|erected]] the [[Braced_frames|steel frame]] and built our way out of the site from the service yard and then finished up nearest the site entrance. However, the two anchor flagship stores have to open on time and need to be handed-over first for their fit-out. They have dictated our programme and this has meant a lot of on-site planning, as we had to [[Construction#Steel erection|erect]] them first. The direction we had to take with the [[Construction#Steel erection|steel erection]] means we will effectively box ourselves in at the end, which means we’ll have to use smaller [[Construction#Mobile cranes|cranes]] as there will be very little room for equipment manoeuvring.”

==Parking solution==
As well as constructing the [[Retail_buildings#Shopping centres|shopping centre]]’s extension, Kier is also undertaking a number of other phases of work for this scheme. Initially the company built a new west entrance to the mall and completed the remodelling and refurbishment of the management suite. In addition, it has also recently commenced the remodelling of the east entrance, which is said to be particularly challenging as it remains open to the public throughout the works.

However, possibly the most challenging part of its work consists of enlarging the mall’s existing [[Car_parks|multi-storey car park]]. Although this work is being done only a stone’s throw from the extension, it is a separate site with its own access and delivery points. 

The original six-storey concrete-framed car park is having two extra levels added to its top. In order to minimise the weight on the existing foundations, a [[Braced_frames|steel-framed]] solution supporting [[Steel_construction_products#Decking for floors|metal decking]] is being used. All of the 90-plus existing concrete columns have been strengthened to allow the new steel columns to be landed on top to form a replica [[Concept_design#Floor grids|grid pattern]] for the new upper floors.

Working on behalf of Caunton Engineering, Composite Profiles has been engaged to detail, supply and install over 9,000m<sup>2</sup> of composite [[Steel_construction_products#Decking for floors|metal floor decking]] for the new floors. Composite Profiles Senior Operations Manager Mark Harley says: “Tata Steel’s ComFlor 80 profile was the obvious choice with its long-spanning capability. The profile is also available with Tata Steel’s unique Colorcoat FD170 pre-finished coating to the underside. This provides a light and airy feel which many [[Car_parks|car parks]] find difficult to achieve.”

{|class="wikitable" width="400" 
|-
|'''Architect'''||tp Bennett
|-
|'''Structural Engineer'''||Clarke Bond
|-
|'''Steelwork Contractor'''||Caunton Engineering
|-
|'''Main Contractor'''||Kier
|-
|'''Main Client'''||Legal & General
|}

[[Category:Case studies - Retail buildings]]