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Mid-America Transportation Center

Logistics Solutions in the Supply Chain: Economic Benefits of Safety and Environmental Impacts



University

University of Nebraska-Lincoln

Principal Investigator
Eric Thompson
PI Contact Information
ethompson2@unl.edu
Funding Source(s) and Amounts Provided
USDOT: $116,897.43
NDOT: $116,897.43
Total Project Cost
$ 233,794.86
Agency ID or Contract Number
69A3551747107
Start Date
4/1/2021
End Date
6/30/2022
Research Objective
The fundamental problem investigated in the proposed study is the extent to which logistics facilities (e.g. transload, intermodal, or freight consolidation facilities) offer economic and safety benefits in the transportation of freight in general and hazardous materials in particular.
Potential Benefits
Results of this project will directly impact the AASHTO LRFD Bridge Design Specifications by either validating current shear friction design provisions or justifying changes to improve safety and/or accuracy. Results will lead to safer and/or more economical designs of concrete bridges.
Brief Description of Research Project
The shear friction design concept is applicable in conditions where direct shear must be transferred across a structural concrete plane or interface, such as an existing crack or an interface between dissimilar materials or concretes cast at different times (i.e., cold joint). Shear friction provisions are commonly used in the design of reinforced concrete and precast-prestressed concrete bridge elements and connections including corbels, dapped double tees, beam bearings, and diaphragms. These types of connections are critical because there is little or no redundancy, which makes them a critical part of the structure. This project will examine the applicability of current shear friction design approaches to concrete-to-concrete interfaces with high strength concrete and/or high strength steel, by means of assembling and evaluating a comprehensive database of test results collected from the literature, and to identify potential needs for revision to the AASHTO LRFD Bridge Design Specifications.
Describe Implementation of Research Outcomes
Impacts/Benefits of Implementation
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