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Title:

Field Performance of Cost Efficient Cast in Place and Precast Prestressed Bridge Approach Slabs

Accession Number:

01473564

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

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.

Supplemental Notes:

This paper was sponsored by TRB committee AFF30 Concrete Bridges.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-1998

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Thiagarajan, Ganesh
Nalagotla, Jitesh
Muncy, Nathan P
Myers, John J
Halmen, Ceki

Pagination:

13p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Subject Areas:

Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-1998

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:27PM