Title: Detecting Cracks in the Beams and Columns of a Post-Tensioned Parking Garage Using the Impact-Echo Method
Author(s): Randall Poston and Mary Sansalone
Publication: Symposium Paper
Appears on pages(s): 199-220
Keywords: beams (supports); columns (supports); cracking (fracturing); impact
tests; nondestructive tests
This paper presents both a brief explanation of the impact response of bar-like structures and an application involving the use of the impact-echo method for detecting cracks in the beams and columns of a post-tensioned parking garage structure. The information gained from the impact-echo tests was used to aid in specifying repair measures for the structure. In the process of implementing repair measures, selected impact-echo results were verified. This field study was performed in 1991. This paper was presented at the AC1 Fall Convention in 1992.