o e a OCONNELL EAST ARCHITECTS o e a OCONNELL EAST ARCHITECTS - - PowerPoint PPT Presentation

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o e a OCONNELL EAST ARCHITECTS o e a OCONNELL EAST ARCHITECTS - - PowerPoint PPT Presentation

Oct 07, 2022 277 likes •571 views

Victoria Hall, Wolverhampton and Off-Site Modular Construction Jenny Hayes o e a OCONNELL EAST ARCHITECTS o e a OCONNELL EAST ARCHITECTS Victoria Hall, Manchester Low Rise Low Budget - 5.5M Traditional Loadbearing

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Victoria Hall, Wolverhampton and Off-Site Modular Construction

Jenny Hayes

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Victoria Hall, Manchester

  • Low Rise
  • Low Budget - £5.5M
  • Traditional Loadbearing

Construction

  • Low Risk
  • Relatively High Returns
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VHL Wolverhampton - Site

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Site - Looking North

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Site Surroundings

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Existing Site – Analysis and Constraints

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Approved Scheme – By Day

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Approved Scheme - By Night

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Approved Scheme – East Elevation

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Approved Scheme – South Elevation

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Distant Views

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Blocks B & C - Material Treatment

  • Blue engineering brick at ground

and first floor of all blocks

  • White acrylic render to upper

floors of Blocks B, C & D with projecting frame detail linking bedroom windows.

  • Lounge bay window projections
  • f dark grey metallic metal

cladding incorporating coloured aluminium panels

  • Green metallic composite

aluminium cladding

  • Fully glazed management suite

and common rooms to give street presence and internal activity at ground and first floor levels

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Block A – Articulation and Materials

  • Blue engineering brick at ground

and first floor

  • Silver metallic and dark grey

metal cladding to tower with horizontal joints.

  • Replicated lounge bay window

projections of dark grey metallic metal cladding incorporating coloured aluminium panels used

  • n Blocks B & C
  • Cantilevered elements to SE

prominent corner

  • Glazed lift shafts and stair core

landings

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Conversion to Modular Construction

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Fleming Proposals

  • Early Completion 2009 – 1 year early
  • Reduced floor to floor height from 3075mm to 2800mm
  • Fundamental change in overall super structure and foundation

design

  • Provision of an additional 23 study rooms – primarily to provide

structural continuity but gave benefit to Client of additional revenue

  • Blocks B & C Relocation/configuration of ground and first floor

common room/multi-use spaces and refuse stores

  • Incorporation of 1m deep transfer structures at 1st and 2nd floor

levels

  • Investigate alternative cladding materials for Block A
  • Block A – reconfigured floor plate due to the south-eastern

cantilever structures and reduced core structure

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Fleming Proposals – Ground Level

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Fleming Proposals – Podium Level

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Block A – Amendments to Elevational Treatment

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Amended Scheme – South Elevation

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Amended Scheme – East Elevation

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Site Progress – Block C

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Site Progress – Block A

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Internal Finishes – Show Flat

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Completion August 2009

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Off-Site Construction - Advantages

  • Off-site construction allows the build process to run concurrently can equate to as much as 60%

reduction in programme

  • Off-site construction offers improved building quality due to the controlled construction environment i.e.

factory finish and turn-key solution

  • Cost certainty for Client
  • Reduced waste (off cuts, packaging etc) – new legislation in the UK forces construction clients,

designers and contractors to adopt a more sustainable approach to waste.

  • Off-site construction facilities are enclosed and secure protecting against weather damage and delays

as well as theft.

  • Permanent, long term employment for skilled labour both within the factory and engineers on site.
  • Improved Fire/Acoustic performance (effectively two walls between all rooms with a cavity)
  • Improved Thermal Efficiency
  • Safety
  • Reduced number of workers/man hours on site
  • Workers have a reduced number of tasks / hazards
  • System building allows detailed analysis of risks at each stage
  • Less noise, dust and general disturbance
  • Fewer commercial vehicle movements
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Off-Site Construction - Disadvantages

  • Economically efficient for repetitive floor plates only
  • Most off-site modular systems are limited to low-rise due to structural stability of modules
  • Modules are limited in size by transport legislation and width of delivery vehicles

Preferred sizes (but larger sizes /heights are common)

  • Width 4.0m outer face of floor steel
  • Length 10.6m outer face of floor steel
  • Height 2.8m floor to floor
  • Design freeze required early in the project. VMS System is 18 weeks prior to scheduled

delivery on site.

  • Size of crane required to lift modules may not be cost effective with smaller quantities
  • Transportation can be costly if site is remote, significant distance from factory and if loads

are wide

  • No flexibility or option for future adaptation
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Off-Site Construction: Limitations

Block A

  • To comply with the approved

scheme cantilever elements were retained to the SE elevation.

  • The internal room configuration

was adjusted to provide some structural continuity together through the modules.

  • Barratt Mahony designed an

additional structural H-frame to provide support to the underside

  • f cantilevers.
  • Introduction of non-standard

floor plates within modular construction can be costly.

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Points to consider:

  • Are traditional and modular construction methods really

that different?

  • Did working with an off-site supply chain help or

constrain design and flair on the project?

  • What are the critical success factors for architecture

and designer working with offsite?

  • Would we recommend off-site?
  • Limitations of off-site construction?