Field Performance of Cost Efficient Cast in Place and Precast Prestressed Bridge Approach Slabs
Concrete bridge approach slabs (BAS) are used at the interface between bridge abutments and pavements that rest on compacted embankment. Three solutions were presented in a previous study for the Missouri Department of Transportation (MoDOT), including two cast in place (CIP) designs for new construction and a novel precast prestressed slab (PCPS) designs for new construction and replacement of BASs. These solutions were estimated to have a lower cost of the designs, and an equal or better performance compared to the current MoDOT designs. Currently a new study has been initiated where the recommended BAS designs are being implemented in the field. The main purpose of the project is to study the field performance, costs and construction issues of these solutions. The primary objectives of the proposed project are to a.) Examine the construction issues and actual costs of construction and b.) perform a long term field monitoring of a PCPS slab and field testing of the proposed designs. The research presented in this paper addresses all three aspects of the study. This paper presents results from field monitoring of the PCPS BAS using strain and moisture gages, field load testing of both PCPS and CIP slabs, and compares costs of construction with projected values. Based on the observations thus far the BASs constructed are performing very well and have met or reduced costs of construction.
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Supplemental Notes:
- This paper was sponsored by TRB committee AFF30 Concrete Bridges.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Thiagarajan, Ganesh
- Nalagotla, Jitesh
- Muncy, Nathan P
- Myers, John J
- Halmen, Ceki
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Conference:
- Transportation Research Board 92nd Annual Meeting
- Location: Washington DC, United States
- Date: 2013-1-13 to 2013-1-17
- Date: 2013
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References; Tables;
- Pagination: 13p
- Monograph Title: TRB 92nd Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Bridge approaches; Bridge construction; Bridge design; Cast in place concrete; Concrete bridges; Costs; Demonstration projects; Performance tests; Precast concrete; Prestressed concrete
- Identifier Terms: Missouri Department of Transportation
- Subject Areas: Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01473564
- Record Type: Publication
- Report/Paper Numbers: 13-1998
- Files: TRIS, TRB, ATRI
- Created Date: Feb 22 2013 3:40PM