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Title Document type Published Publisher
Guidance on the Design, Assessment and Strengthening of Masonry Parapets on Highway

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Masonry parapets are designed to provide protection for road users. This guidance document is designed to bring up to date previous advice on the design, assessment and strengthening of masonry parapets, drawing together guidance previously available in BS 6779:1999 Part 4 and in research papers, and bringing the terminology used in line with that used in BS EN 1317-2:1998 and BS EN 1996-1-1:2005

General Information 03/09/12 UK Roads Liaison Group Add icon
Management of Highway Structures Complementary Guidance

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Management of Highway Structures: A Code of Practice was published in September 2005. Since then Government Policy in respect to highway and structures management has developed and evolved in a number of areas, including the introduction of new statutory duties on highways authorities. There have also been developments/advances with regard to recognised good practice. To assist users of the Code, the Roads Liaison Group has prepared this complementary guidance which takes account of these changes and developments. Where appropriate, the complementary guidance provides details of where to find up-to-date information that can assist with the implementation of the good practice set out in the Code. Users of the Code should treat this complementary guidance as up-to-date and having the same status as the Code. Where paragraphs have been amended, they supersede the ones in the Code.

Primary Doc. 27/05/11 UK Roads Liaison Group Add icon
Intelligent monitoring of concrete structures

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Management of concrete structures requires an understanding of the deterioration processes involved and the rate at which they proceed. Intelligent monitoring is automated monitoring which explicitly provides information on current condition and deterioration rates to assist in predicting the remaining life of a component or structure. Surface mounted or embedded sensors may be used to monitor various aspects of structural condition, reinforcement corrosion, and the environment in and around a concrete structure.

Secondary Doc. 01/01/08 CIRIA Add icon
TRL PPR 053 Strengthening of concrete structures using near surface mounted FRP reinforcement

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This report describes the use of near surface mounted (NSM) reinforcement as a technique for increasing the flexural capacity of concrete bridges. The principle of NSM reinforcement is to introduce additional reinforcement into the concrete section in such a way that it acts compositely with the rest of the section in the same way as if it were cast into the concrete. The aim of the project was to investigate the performance of concrete beams and slabs strengthened with NSM FRP reinforcement. The specific objectives were to review available information on the use of NSM reinforcement, to provide guidance on its use for concrete bridge deck strengthening and to incorporate the use of NSM strengthening into the Highways Agency standard for FRP strengthening (BD 85). The project consisted primarily of a desk study, aimed at making use of existing information and practice to provide guidance to enable the technique to be used in a safe, consistent and cost-effective manner. A small series of tests was also undertaken and used to verify any proposed design approach and to provide information on the practical issues that could be incorporated into the design guidelines. The focus of the study was on flexural strengthening. While it is recognised that the technique may provide significant benefits for shear strengthening, detailed study of this application was beyond the scope of this project. Details of the test programme were formulated based on the results of the literature review. The results of the load tests were used to supplement the information already available and to validate the proposed design approach. The report contains a description of the design, fabrication and strengthening of the beams. It also presents details of the load tests including behaviour under load, strength, mode of failure, and comparisons of the load test capacity with that derived from theoretical calculations. The report includes a practical design procedure which can be used for NSM FRP strengthening systems. The procedure is based on the literature review and test programme described in the earlier sections of the report. It is consistent with the design approach previously developed for externally bonded FRP strengthening which forms the basis of BD 85, the Highways Agency standard relating to the strengthening of bridges using FRP. The results of this research have been incorporated into the draft standard for the strengthening of bridge using fibre reinforced polymer (BD 85) in the Highways Agency’s Design Manual for Roads and Bridges.

Research 04/10/06 Transport Research Laboratory Add icon
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