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Title Document type Published Publisher
Prevention of Strikes on Bridges - A protocol for Highway Managers & Bridge Owners - Issue 2

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The Protocol gives guidance and advice to Highway Authorities and Bridge Owners to prevent strikes on bridges that span public highways

Primary Doc. 11/07/14 Department for Transport Add icon
Surface Dressing Code of Practice

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This sixth edition of the Code of Practice has been produced by the RSTA Surface Dressing Technical Committee. It has been reviewed in the context of the European Standard for Surface Dressing BS EN 12271 published in September 2006 along with the national guidance document PD6689:2009. This document has been peer reviewed by ADEPT Soils, Materials, Design and Specifications Committee. To the highway engineer, surface dressing offers a quick, efficient and cost-effective way of maintaining skid-resistant and waterproofing road surfaces. To obtain the best results it is necessary to give careful consideration to a wide range of detail and to plan and design the work carefully. The speed of the surface dressing operation and the short duration of time during which motorists are inconvenienced is also an important issue. The purposes of surface dressing are to waterproof the road surface, to arrest disintegration, to provide texture, and provide a skid-resistant surface. This latter quality can play a major part in accident reduction and was highlighted by the initiative of the Department of Transport in 1987 when the Minister introduced minimum mean summer SFC values for motorways and trunk roads. The importance of surface texture as provided by surface dressing has been highlighted by TRL report LR 286, which stresses that texture depth is important under both wet and dry conditions. Up to date guidance is available in the Design Manual for Roads & Bridges (DMRB): Volume 7 HD 28. The DMRB is available on line at www.dft.gov.uk/ha/standards/dmrb/. A useful way of comparing the effectiveness of a dressing, or other maintenance work, is to express it in terms of a ‘cost life index’. This is the cost per square metre of the work divided by the service life in years. It provides a measure of the “value for money” which the highway authority is achieving. A low ‘cost life index’ and “high value for money” is the result of high-quality work. The purpose of this Code is to identify the important aspects of the process, and to refer to other documents relating to good surface dressing practice and so give practical guidance on achieving high quality.

Product 01/02/14 unknown Add icon
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
Tunnels: inspection, assessment and maintenance

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This guide provides infrastructure owners, consulting engineers, contractors and maintenance managers with guidance on the management, condition appraisal, maintenance and repair of the structural elements of existing infrastructure tunnels, focusing primarily on older infrastructure and certain tunnel types. It is based on a detailed review of published literature and infrastructure owners’ procedures, consultation with experts and practitioners within the field, and case studies demonstrating good practice.

Secondary Doc. 01/01/10 CIRIA Add icon
Drystone retaining walls and their modifications: condition appraisal and remedial treatment

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This publication provides infrastructure owners, consulting engineers, contractors and maintenance managers with guidance on the management, condition appraisal, maintenance and repair of drystone retaining walls. It is based on a detailed review of published literature and infrastructure owners' procedures, consultation with experts and practitioners within the field. The purpose of this publication is to present good practice, provide a guide for routine management, recommend assessment, maintenance and repair strategies to give value for money and help knowledge sharing. This publication is divided into ten chapters, each including information and guidance on particular aspects of drystone retaining walls, followed by appendices with detailed information for practitioners including case studies demonstrating good practice.

Secondary Doc. 01/03/09 CIRIA 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
Iron and steel bridges: Condition appraisal and remedial treatment

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This guidance is aimed to meet the requirements of those with a general knowledge of bridge engineering and asset management and who need further information about the performances and specific requirements of iron and steel bridges. The book aims to provide and explain good practice, offer guidance for general application and give a source of information relevant to iron and steel bridges. Examples of successful schemes are cited and described. Case studies are also provided of both successful and unsuccessful examples of repair and strengthening projects.

Secondary Doc. 01/11/07 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
Masonry arch bridges: Condition appraisal and remedial treatment

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Masonry arch bridges have proved to be reliable, enduring structures and remain a vital part of the road, rail and waterway infrastructure in the UK and other countries; but they are facing a number of challenges associated with their extended period in service and the changing requirements of modern transport systems. In order to ensure the continued efficient use of these assets in the future it is necessary to manage and maintain them carefully, with due regard to, and an adequate understanding of, their special characteristics and needs. In a number of important ways these are distinct from those of more modern structures and the effective stewardship of masonry arch bridges requires some specialist knowledge and a particular approach. This report provides information and guidance which will assist those responsible for this task in achieving their aims.

Secondary Doc. 01/08/06 CIRIA Add icon
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