Research Study to Inform Strut-and-Tie Design and Guidance

Tuchscherer, Robin G.; Dymond, Benjamin Z.

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Research Study to Inform Strut-and-Tie Design and Guidance

2025-11-01
By Tuchscherer, Robin G. ; Dymond, Benjamin Z.

File Language:

English

Details

Creators:

Tuchscherer, Robin G. ; Dymond, Benjamin Z.
Corporate Creators:

Northern Arizona University. Department of Civil and Environmental Engineering
Corporate Contributors:

Arizona. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Box Girders Calculation Construction Joints End Diaphragm Guidelines Hammerhead Posttensioning Serviceability Straddle Bent Strut And Tie Method Workflow
Publication/ Report Number:

SPR-782
Resource Type:

Tech Report
Geographical Coverage:

United States ; Arizona
Edition:

Final Report
Corporate Publisher:

Arizona. Department of Transportation. Research Center
Abstract:

The goal of the project summarized in this report was to research and develop criteria for updating and improving the ADOT Bridge Design Guidelines with respect to the strut-and-tie methodology defined in the AASHTO LRFD Bridge Design Specifications. To accomplish this goal, the existing literature was reviewed and bridge engineers in Arizona and at U.S. State Departments of Transportation were surveyed to establish how they use the strut-and-tie method in practice. These practices were compared with ADOT practices, and new design scenarios were identified for guidance development. These scenarios were comprehensively analyzed, and five in-depth design examples were developed, including examples related to a hammerhead bent cap, post-tensioned straddle bent cap, post-tensioned box girder end diaphragm, long pier cap, and construction joint. The example problems illustrate workflow, provide detailed calculations, and offer guidance for common points of confusion. Dissemination of the design examples and recommended guidance to the bridge engineering design community occurred via a classroom-style workshop.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:343268a1ff282fb02c335257257bec2cbe75c826c4d6d18c1201fc87248f69ca0fd1510b6280e2b3e9d5934f6562ac3455a64b85c64d8ba047aa4ee35449c63b
Download URL:

https://rosap.ntl.bts.gov/view/dot/87784/dot_87784_DS1.pdf
File Type:

[PDF - 2.31 MB ]

File Language:

English

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