Field testing and analysis of two prestressed concrete girders
"On April 22, 1957, a research program to study the field behavior of a 99-foot clear span prestressed concrete pedestrian overpass was undertaken by the Engineering Experiment Station of the University of Missouri in cooperation with the Missouri State Highway Department and the Bureau of Public Roads. The objectives of this research were the collection and analysis of field strain and deflection measurements for the prestressed, post-tensioned girders and cast-in-situ walkway slab, and the comparison of the actual behavior of the structure with that predicted from the design assumptions. This report describes the test program developed including the control tests used in determining the design constants for calculating theoretical deflections and strains. The field observations are presented in tabular and graphical form and the correlations between observed and computed values are discussed." - from preface.