"In December of 2010, the Missouri Department of Transportation (MoDOT) investigated alternative cost efficient bridge approach slabs (BASs). New BAS designs were subsequently developed and had a projected cost savings up to twenty-four percent with anticipated equal or better structural performance. A precast-prestressed (PCPS) BAS was introduced as an alternative to traditional BASs that offers advantages such as rapid construction and improved long-term durability. The three new BAS designs were implemented into in-situ bridge projects by MoDOT and the field performance was evaluated within this research study.
Field testing of each BAS was performed using two MoDOT HS20 trucks. Various instrumentation including inclinometers and high precision surveying equipment were used to monitor the BAS performance during field load testing. The innovative PCPS BAS was instrumented with internal vibrating wire strain gauges (VWSG) and moisture gauges.
Finite element models (FEM) were constructed to verify the field load testing behavior and to predict the BASs future behavior. A full-scale PCPS panel was tested in the Structural Engineering Research Laboratory (SERL) in Butler Carlton Hall on the Missouri University of Science and Technology (Missouri S&T) Campus to determine the performance under various washout conditions (i.e. lengths). The support rotations, deflections, and strains were noted. In addition, the failure of the panel was tested to verify the intended design strength of the precast-prestressed approach slab"--Abstract, page iii.
Thiagarajan, Ganesh, 1963-
Civil, Architectural and Environmental Engineering
M.S. in Civil Engineering
National University Transportation Center
Missouri University of Science and Technology
xvi, 190 pages
© 2013 Nathan Price Muncy, All rights reserved.
Thesis - Restricted Access
Library of Congress Subject Headings
Concrete slabs -- Design and construction
Bridge approaches -- United States -- Design and construction
Bridge approaches -- Missouri -- Design and construction
Prestressed concrete bridges -- Testing
Strength of materials -- Testing
Print OCLC #
Electronic OCLC #
Link to Catalog RecordElectronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu:80/record=b10119042~S5
Muncy, Nathan Price, "Field performance of alternative and cost efficient cast in place and precast prestressed concrete bridge approach slabs" (2013). Masters Theses. 5995.