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Bridges constructed with adjacent precast prestressed concrete box beams have been in service for many years and provide an economical solution for short and medium span bridges. A recurring problem is cracking in the longitudinal grouted joints between adjacent beams, resulting in reflective cracks forming in the asphalt wearing surface or concrete deck.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 1026: Guidelines for Adjacent Precast Concrete Box Beam Bridge Systems presents guidelines developed for the design and construction of various adjacent precast box beam bridge systems to enhance the performance of connections and bridge service life and to propose design and construction specifications.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2023. Guidelines for Adjacent Precast Concrete Box Beam Bridge Systems. Washington, DC: The National Academies Press. https://doi.org/10.17226/27029.

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Publication Info

138 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/27029
Chapters skim
Front Matter i-viii
Summary 1-2
Chapter 1 - Statement of the Problem 3-6
Chapter 2 - Research Approach 7-18
Chapter 3 - Findings and Applications 19-29
Chapter 4 - Conclusions and Suggested Research 30-32
Appendix A - Suggested Details for Shear Keys 33-34
Appendix B - Finite Element Analyses 35-58
Appendix C - Experimental Program 59-126
Abbreviations 127-127
References 128-132

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