U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

Overview

 

Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-11-0188
Project Name:   Optimized Shear Stud Spacing for Precast Deck Panel Construction
Project Status:   Active
Start Date:  June 1, 2011
End Date:  January 1, 2015
Contact Information
Last Name:  Ocel
First Name:  Justin
Telephone:  202-493-3080
E-mail:  justin.ocel@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Bridge and Foundation Engineering Team [HRDI-40]
Program:   High-Performing Steel Bridge
Laboratory:   Structures Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   This project will collect data to justify modification to the American Association of State Highway and Transportation Officials Load and Resistance Factor Design Bridge Design Specifications in terms of steel composite construction. Specifically, increasing the shear stud spacing beyond 24 inches will be explored. This project will also evaluate if the existing static and fatigue design provisions are adequate. The project will static test composite beams with shear stud spacings of 24, 36, and 48 inches, as well as fatigue test 3 replicates at each of those spacings.
Goals:  
To determine if shear studs can be clustered at spacings exceeding 24 inches as currently dictated in the American Association of State Highway and Transportation Officials Load and Resistance Factor Design Bridge Design Specifications.
 
Product Type:   Draft standard, specifications, or guidelines
Technical report
Test Methodology:   Full-scale experimental
Expected Benefits:   Broader use of accelerated bridge construction using steel superstructures.
Deliverables: 1. Name: WORKING TITLE - "Optimized Shear Stud Spacing for Steel Superstructures with Precast Deck Panels"
Product Type(s): Technical report
Description: The report will outline the test methodology, testing matrix, results attained, and conclusions.
2. Name: Recommended changes to American Association of State Highway and Transportation Officials (AASHTO) Bridge Design Specification
Product Type(s): Draft standard, specifications, or guidelines
Description: The research will likely justify changes to both the static and fatigue design provisions of shear studs in Section 6 of the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications. This product will likely be in the form of a ballot item the AASHTO Subcommittee on Bridges and Structures can take up as a business item.
FHWA Topics:   Roads and Bridges--Structures
TRT Terms:   Composite Construction
Infrastructure
Research
Studs
Fatigue (Mechanics)
Steel Bridges
Bridge Construction
Bridge Superstructures
FHWA Disciplines:   Structures
Subject Areas:   Bridges and other structures
Construction
Research

 

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