• The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: The Use of Advanced Optical Measurement Methods for the Mechanical Analysis of Shear Deficient Prestressed Concrete Members

Author(s): K. De Wilder, G. De Roeck, and L. Vandewalle

Publication: IJCSM

Volume: 10

Issue: 2

Appears on pages(s): 189–203

Keywords: experimental mechanics, prestressed concrete, coordinate measurement machine, stereo-vision digital image correlation.

DOI: 10.1007/s40069-016-0135-x

Date: 6/30/2016

This paper investigates on the use of advanced optical measurement methods, i.e. 3D coordinate measurementmachines (3D CMM) and stereo-vision digital image correlation (3D DIC), for the mechanical analysis of shear deficientprestressed concrete members. Firstly, the experimental program is elaborated. Secondly, the working principle, experimental setupand corresponding accuracy and precision of the considered optical measurement techniques are reported. A novel way to applysynthesised strain sensor patterns for DIC is introduced. Thirdly, the experimental results are reported and an analysis is made ofthe structural behaviour based on the gathered experimental data. Both techniques yielded useful and complete data in comparisonto traditional mechanical measurement techniques and allowed for the assessment of the mechanical behaviour of the reported testspecimens. The identified structural behaviour presented in this paper can be used to optimize design procedure for shear-criticalstructural concrete members.