Brentford Waterfront Block B and C Temporary Works Design

Beta Scope

Beta Design Consultants scope covers temporary works design for 3 Blocks:

3D Geotechnical Analysis.
Design of Temporary Works to satisfy CATIII checking.
Full BIM modelling of Temporary works for clash checking.
Design of connections of temporary works to the capping beam.
Design of thrust blocks used to restrain the raking props.
The preparation of the detailed fabrication drawings.
The detailing of all embedded plates including the rebar bending schedules.

Background

Beta Design Consultants was commissioned by Lomas Steel Structures to design the temporary works for the basement excavation of Blocks B and C of the mixed-use development at Brentford Waterside.

The site was particularly interesting as it is located close to the River Brent joining point with the River Thames. The tidal changes in the River Thames affect the water table level and the site is mainly alluvium soils overlaying the London clay.

This lead to high lateral loads on the basement retaining walls.

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Beta Solution

Beta Design Consultants carried out a 3D geotechnical analysis to confirm loading on the walls and establish the optimum layout for the temporary props. A mix of raking props and diagonal props were considered.

Idea Statica was used to design all connections and achieve maximum standardisation possible to reduce cost of fabrication and time of installation.

Tekla Structures was used to model all the steel structure as well as to model the rebar on the embedded plates.

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