Application of microwave pulse-echo radar imaging to the nondestructive evaluation of buildings

✍ Scribed by J. E. Mast; H. Lee; J. P. Murtha

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 626 KB
• Volume: 4
• Category: Article
• ISSN: 0899-9457
• DOI: 10.1002/ima.1850040304

✦ Synopsis

We present a microwave pulse-echo radar imaging technique and its application to nondestructive evaluation of structural configurations of the New York State Capitol building. The survey procedure consists of scanning surface areas of the building with the radar dataacquisition system, imaging with the backward-propagation method, and forming an image of the investigated region. This technique not only provides depth and other distance measures, but also provides high-resolution range and azimuthal spatial visualization of the subsurface region. The results demonstrate the capability of the technique for estimating the depth, span, and size of beams, girders, flues, and masonry arches in floors as well as columns in walls. Also, the mechanical stepping and thickness of outer granite facings on the walls, and the presence of wire mesh and reinforcement in concrete, are also discernible. @ 1993 John Wiley & Sons, Inc.