Develop Standardized LRFD Design Methods for Ancillary Highway Structures
Texas Department of Transportation's (TxDOT's) current standards for design of ancillary highway structure foundations are based on allowable stress design (ASD) framework and need to be updated to the load and resistance factor design (LRFD) framework to be compliant with American Association of State Highway and Transportation Officials (AASHTO) policy. The goal of this project is to develop standardized LRFD design methods for foundations of various ancillary traffic structures that are compliant with AASHTO requirements while maintaining an efficient design and the ease-of-use of a standard. The research team will (a) perform literature review and summarize the state of the practice and key findings of standards and design criteria for traffic structure foundations of TxDOT and other DOTs, (b) identify soil parameters and associated testing methods that can be used in updated standards, (c) evaluate TxDOT's current traffic structure standards for foundation design by comparing design outcomes from TxDOT's standards and those from other DOTs for various soil and loading conditions, (d) develop new LRFD design criteria for updates to the applicable standards, and (e) prepare design examples using the new LRFD design criteria.
Language
- English
Project
- Status: Active
- Funding: $371864
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Contract Numbers:
0-7236
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Sponsor Organizations:
Texas Department of Transportation
125 E. 11th Street
Austin, TX United States 78701-2483 -
Project Managers:
Odell, Wade
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Performing Organizations:
Center for Multidisciplinary Research in Transportation (TechMRT)
Texas Tech University
Box 41023
Lubbock, TX United States 79409-1023 -
Principal Investigators:
Seo, Hoyoung
- Start Date: 20240901
- Expected Completion Date: 20260831
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Design standards; Foundation engineering; Foundation soils; Highways; Load and resistance factor design; Structures
- Identifier Terms: American Association of State Highway and Transportation Officials; Texas Department of Transportation
- Subject Areas: Bridges and other structures; Design; Geotechnology; Highways;
Filing Info
- Accession Number: 01928230
- Record Type: Research project
- Source Agency: Texas Department of Transportation
- Contract Numbers: 0-7236
- Files: RIP, STATEDOT
- Created Date: Aug 22 2024 5:10PM