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Participating states -- Bridge deck joint ratings -- Expansion joint devices (illustrations) -- States reports.
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 319: Bridge Deck Joint Performance presents the state of the practice on commonly used expansion joint systems in bridges by summarizing performance data for each system type and by providing examples of selection criteria and design guidelines.
This synthesis will be of interest to research, specifications, materials, design, and construction engineers; contract and specification administrators; agency project managers and staff; and concrete bridge deck construction contractors. This synthesis describes the state of the practice with respect to the development and present status of waterproofing membranes for concrete bridge decks. This report of the Transportation Research Board describes the use of waterproofing systems applied to new bridge decks and the rehabilitation of deteriorated concrete bridge decks. In addition, this synthesis describes current practice with regard to methods for assessing the effectiveness of membranes, criteria for use, installation practices, and factors that affect the performance of waterproofing systems in new construction and rehabilitation. Suggestions for future research are also included.
This synthesis will be of interest to bridge designers, maintenance engineers, and others concerned with designing and maintaining bridge deck joints. Information is presented on the types of deck joints used in bridges and on the design of bridges without joints. Bridges are continually moving and thus need either some type of deck joint or an integral design to accommodate this movement. This report of the Transportation Research Board describes the types of deck joints being used, the problems with these joints, and how integral construction-- bridge decks without joints--can be used to avoid joints.
Indeed, this essential working reference for practicing civil engineers uniquely reflects today's gradual transition from allowable stress design to Load and Resistance Factor Design by presenting LRFD specifications - developed from research requested by AASH-TO and initiated by the NCHRP - which spell out new provisions in areas ranging from load models and load factors to bridge substructure elements and foundations.