Sign gantries, consisting of prestressed beams and reinforced columns, are currently being used on motorways and major roads. Depending on the cross-section of the beam used, spans of up to 41 metres can be achieved; sufficient for spanning across both carriageways of a motorway. Units offer fast and economic erection, which is particularly advantageous when being installed on ‘live’ roads. Columns are placed in preformed sockets in the foundations and can be designed to be demountable for reuse elsewhere. Beams are provided with the necessary fixings for the signs already cast in.
The following benefits are afforded to the public, highway authority and construction team by the ability of concrete gantries to eliminate central reserve support legs:
- Removes the need for extensive traffic management schemes on live roads.
- Contains construction work for gantry legs to the hard shoulder.
- Reduces traffic disruption during construction.
- Improves workforce and public safety.
- Reduces cost of maintenance and associated traffic disruption.
This publication assists engineers in understanding the common challenges of building tall.
An all-you-need-to-know guide on the specification of sustainable concrete.
Guidance on how concrete can be used to achieve credits under the latest version of BREEAM NC:2014.
This guide focuses on concrete and masonry housing, and presents requirements for Part L1A of the Building Regulations.
Gives likely structural options for a concrete frame, with useful points to note - written by engineers for engineers.
This document provides information on the material and resource efficiency of concrete and masonry.
This guide sets out how concrete's attributes can be used to minimise CO2 emissions.
This eighth annual report report presents the concrete industry’s sustainability performance in 2014.
This guide focuses on the use of concrete at Coin Street Neighbourhood Centre and its part in creating a low energy building.
This publication summarises the material used in the design of reinforced and prestressed concrete bridges using Eurocode 2