3D Printed Advanced Materials to Mitigate Prestressed Concrete Girder End Cracks
Despite the recent popularity of 3D printing, its applications in transportation infrastructure are largely unexplored. This research aims to investigate a specific application of 3D printing for tackling the problem of end cracking in precast-prestressed concrete bridge girders caused by prestress release, which could be detrimental to bridge durability. 3D-printed shells, serving as permanent formworks and made of strain-hardening cementitious composites (SHCC), are proposed for providing a damage-tolerant protective layer around the girders at their ends. The project will involve the development of a new 3D-printable SHCC, design of an SHCC shell for lab-scale beams, testing of beam specimens, and numerical simulations for aiding an integrated material-printer-structure design approach. If this proof-of-concept project is successful, future research will seek to scale up the novel idea to large-scale girders, which could significantly enhance the durability and service life of the precast-prestressed concrete bridge girders.
Language
- English
Project
- Status: Active
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Sponsor Organizations:
University of Illinois, Urbana-Champaign
Department of Civil and Environmental Engineering
Newmark Civil Engineering Laboratory
Urbana, IL United States 61801-2352Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Performing Organizations:
221 Ketter Hall
Buffalo, NY United States 14260 -
Principal Investigators:
Ranade, Ravi
Okumus, Pinar
- Start Date: 20230901
- Expected Completion Date: 20240831
- Actual Completion Date: 0
- USDOT Program: University Transportation Centers
Subject/Index Terms
- TRT Terms: Cracking; Girders; Prestressed concrete bridges; Three dimensional printing
- Subject Areas: Bridges and other structures; Construction; Highways; Materials;
Filing Info
- Accession Number: 01893425
- Record Type: Research project
- Source Agency: Transportation Infrastructure Precast Innovation Center
- Files: UTC, RIP
- Created Date: Sep 18 2023 10:06PM