Bryn Gwyn Cattle Market

Cattle Market

Client: Morgan Sindall / Monmouthshire County Council

Sector: Commercial / Agricultural

Value: £3M

Cambria Consulting Ltd were appointed by Morgan Sindall to assist find savings in their contractor bid preparations. Not only did Morgan Sindall win the contract with Monmouthshire County Council, but requested Cambria continue with them on the project to deliver our design and provide support through the construction phase.

The market was built on a 27-acre site, to  hold 300 sheep pens and 150 cattle pens. The building comprises a steel frame with timber-cladding and include a lorry and car park, offices and a café.

The new trading facilities serve the Monmouthshire farming community following the closure of Abergavenny livestock market. The closure of the market is part of a wider development plan.

Synopsis of design

The development was for a purpose built livestock market on a green filed site.

The buildings are a livestock shed with purpose made pens to hold the livestock before and after sale. A support building abutting the livestock shed with a sales ring for the sale and purchase of the live stock.

The support building has an area of tiered terrace to form a semi circular area for the public auction arena. The tiered terrace is from precast units by a specialist contractor.

There is also a standalone storage shed.

The site also has a foul treatment works for the animal waste from the livestock shed. This is a reinforced concrete structure with specialist foul water treatment machinery.

Foundations

The foundations to the buildings are pad foundations onto a vibro ground improved soil.

The vibro ground improvement by a specialist ground improvement contractor.

The vibro ground improvement is to a specified 100kN/m2 bearing capacity. The foundations have been sized accordingly.

Ground Floor

The ground floor to all of the buildings is a ground bearing floor slab cast onto vibro inproved ground.

Structural Frame

The main structural frame is of steel construction with cold rolled steel purlins spanning between steel rafters. The external walls are of timber or metal cladding supported by cold rolled rails, precast units supported form an edge foundation and masonry walls.

The livestock shed is a 3 span portal frame.

Stability is achieved by portal action in one direction and roof bracing transmitting horizontal forces from the roof level to vertical bracing within the external walls in the other direction.

The support building is a mono pitch portal frame.

Stability is achieved by portal action in one direction and roof bracing transmitting horizontal forces from the roof level to vertical bracing within the external walls in the other direction.

The storage shed is a duo pitched portal frame.

Stability is achieved by portal action in one direction and roof bracing transmitting horizontal forces from the roof level to vertical bracing within the external walls in the other direction.

Demolition

Any future demolition works to the structure should be carried out in a sequence to maintain stability to the structure. Demolition work of the main steel frame should be carried out in an order to leave the braced bays to the last part of the demolition works.

Other above ground elements of the building can be removed without affecting the stability of the main frame.

Bryngwyn_inside

 

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