6LYER S R, SINHA S K, SCHOKKER A J. Ultrasonic C-Scan Imaging of Post-Tensioned Concrete Bridge Structures for Detection of Corrosion and Voids [ J] . Computer-Aided Civil & Infrastructure Engineering, 2005, 20 (2): 79-94.
7GATTULLI V, CHIARAMONTE L. Condition Assessment by Visual Inspection for a Bridge Management System [ J ] . Computer-Aided Civil & Infrastructure Engineering, 2005, 20 (2) : 95 - 107.