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This manual presents uniform guidelines and procedures for the inspection, evaluation and maintenance of the nation's existing movable bridge inventory. The manual provides information pertaining to the unique structural, mechanical, hydraulic and electrical components and operational characteristics of a movable highway bridge. The manual was developed for bridge engineers, inspectors and maintainers charged with operational and maintenance responsibility for these complex structures. Commentary adjacent to the text on the same page provides suggestions on implementing the guidelines and procedures of this manual and directs the reader to additional sources of information. The contents are organized in four primary parts: General, Inspection, Evaluation, and Maintenance. The appendices contain supplementary information, and are followed by a reference list, glossary, and index.
"This manual presents uniform guidelines and procedures pertaining to the unique structural, mechanical, electrical, and operational characteristics of movable highway bridges. The manual was developed for bridge engineers, inspectors, and maintainers charged with operational and maintenance responsibilities for these complex structures. Commentary adjacent to the text provides suggestions on implementing the guidelines and procedures, and directs the reader to additional sources of information. This manual supersedes the 1998 first edition."--Publisher description.
This new reference work addresses both the maintenance and the upkeep of existing movable bridges, as well as the complete design of new movable bridges. Comprehensive coverage is provided on engineering design and actual construction technology used in building all major types of bridges, including all structural issues and relevant mechanical and electrical systems used to make such bridges functional. Includes coverage of vertical lift, swing, and bascule bridges for both highway and railway usage Offers valuable guidance on operation, maintenance, inspection, and rehabilitation of moveable bridges
The AASHTO Manual for Maintenance Inspection of Bridges is the standard by which publicly owned bridges in the United States are inspected and rated. The present Manual was initially adopted in 1970 and was intended as an engineering guide for bridge owners to inspect and evaluate highway bridges as required by the National Bridge Inspection Standards issued by the U.S. Congress in 1968. During a period of almost twenty years, advances in technologies and research have resulted in many innovations, improvements and changes in the state-of-the-art of bridge inspection and evaluation. While the existing Manual has received minor revisions periodically, the basic text and procedures have remained unchanged. It is the intent of Project NCHRP 12-23, which is sponsored by the Transportation Research Board, AASHTO Bridge Committee and the Federal Highway Administration, to update and modernize the present Manual to reflect the latest advances in inspection methods, tools and rating systems. New major items in the revised Manual will be Scour Inspection, Treatment of Fracture Critical Bridge Members, Non-Destructive Testing, Load Tests, and Load Rating Systems. The revised Manual is expected to be approved by AASHTO in the Spring of 1991. For the covering abstract of the Conference see IRRD Abstract no. 807839.
The Guide Manual for Bridge Element Inspection builds on the element-level condition assessment methods developed in the AASHTO Guide for Commonly Recognized Structural Elements, which it replaces. Improvements have been made to fully capture the condition of the elements by reconfiguring the element language to utilize multiple distress paths within the defined condition states. The multi-path distress language provides the means to fully incorporate all possible defects within the overall condition assessment of the element. The overall condition of an element can be utilized in this aggregate form, or broken down into specific defects present as desired by the agency for Bridge Management System (BMS) use. The Bridge Element Inspection Manual provides a comprehensive set of bridge elements that is designed to be flexible in nature to satisfy the needs of all agencies. The complete set of elements capture the components necessary for an agency to manage all aspects of the bridge inventory utilizing the full capability of a BMS -- Publisher's website.