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Publication Number: FHWA-HRT-04-124
Date: April 2005

Lab & Field Testing of AUT Systems for Steel Highway Bridges

6. RESULTS (cont'd)

The photo shows a plan view of field specimen FG16D-TF1-BottF-FCM with the weld oriented horizontally.
Figure 102. Field specimen FG16D-TF1-BottF-FCM: Top view of joint.
The photo shows a side view of field specimen FG16D-TF1-BottF-FCM with the weld oriented vertically.Figure 103. Field specimen FG16D-TF1-BottF-FCM: Side view of joint.

The radiographic image shows two discontinuities (slab inclusions). The first discontinuity is acceptable and is located at marker A. The second discontinuity is rejectable and located to the right of marker B. The discontinuities are circled for illustrative purposes.
Figure 104. Radiographic image of field specimen FG16D-TF1-BottF-FCM.

Figure 105 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies two acceptable indications. The first indication is located at 63.5 millimeters (2.5 inches) from the datum while the second indication is located at 254 mm (10 inches) from the datum. Note that 1 inch equals 25.4 millimeters.

Figure 105. P-scan images of field specimen FG16D-TF1-BottF-FCM: From TSC side of centerline using 60-degree probe.

Figure 106 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies one acceptable indication at 63.5 millimeters (2.5 inches) from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 106. P-scan images of field specimen FG16D-TF1-BottF-FCM: From BSC side of centerline using 60-degree probe.

Figure 107 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies two acceptable indications. The first indication is located at 25.4 millimeters (1 inch) from the datum while the second indication is located at 254 mm (10 inches) from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 107. P-scan images of field specimen FG16D-TF1-BottF-FCM: From BSC side of centerline using 70-degree probe.

The photo shows a plan view of field specimen FG36K-TF2-TopF-FCM with the weld oriented horizontally. The specimen is comprised of a wider plate to the top and a more narrow plate to the bottom of the photo. The centerlines of the plates are aligned.
Figure 108. Field specimen FG36K-TF2-TopF-FCM: Top view of joint.

The photo shows a side view of field specimen FG36K-TF2-TopF-FCM with the weld oriented vertically. The specimen is comprised of a wider plate to the left and a more narrow plate to the right of the photo.
Figure 109. Field specimen FG36K-TF2-TopF-FCM: Side view of joint.

The radiographic image between markers C and D does not show any discontinuities.
Figure 110. Radiographic image of field specimen FG36K-TF2-TopF-FCM: Section C-D.

Figure 111 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies two rejectable subsurface indications between 558.8 and 857.25 millimeters (22 and 33.75 inches) from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 111. P-scan images of field specimen FG36K-TF2-TopF-FCM using 45-degree probe: From TSC side of centerline.

Figure 112 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies three rejectable subsurface indications between 558.8 and 857.25 millimeters (22 and 33.75 inches) from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 112. P-scan images of field specimen FG36K-TF2-TopF-FCM using 45-degree probe: From BSC side of centerline.

The photo shows a plan view of field specimen FG37K-TF3-BottF-FCM with the weld oriented horizontally. The specimen is comprised of plates of equal thickness and width.
Figure 113. Field specimen FG37K-TF3-BottF-FCM: Top view of joint.

The photo shows a side view of field specimen FG37K-TF3-BottF-FCM with the weld oriented vertically. The specimen is comprised of plates of equal thickness and width.
Figure 114. Field specimen FG37K-TF3-BottF-FCM: Side view of joint.

The radiographic image between markers C and D does not show any discontinuities.
Figure 115. Radiographic image of field specimen FG37K-TF3-BottF-FCM: Section C-D.

Figure 116 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies one rejectable indication between 596.9 and 800.1 millimeters (23.5 and 31.5) inches from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 116. P-scan images of field specimen FG37K-TF3-BottF-FCM: Scan using 45-degree probe.

Figure 117 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display does not identify any indications between 596.9 and 800.1 millimeters (23.5 and 31.5 inches) from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 117. P-scan images of field specimen FG37K-TF3-BottF-FCM: Scan using 70-degree probe.

The photo shows a plan view of HSS procedural test plate TP2 with the weld oriented horizontally. The specimen is comprised of plates of equal thickness and width.
Figure 118. HSS procedural test plate TP2: Top view of joint.


Figure 119 shows a color-coded image created by the P-scan system which includes the C-scan, B-scan, side view, and response amplitude profile of the weld. The vertical and horizontal axes of the C-scan, B-scan, and side views represent weld dimensions in inches. The vertical and horizontal axes of the amplitude response graph are response amplitude in decibels and distance in inches, respectively. The P-scan image also contains a bar graph relating response magnitude to a series of colors. The colors range from red, which indicates a high amplitude response, to purple, which indicates a low amplitude response. The display identifies four rejectable indications between 0 and 298.45 millimeters (0 and 11.75 inches) from the datum. Note that 1 inch equals 25.4 millimeters.
Figure 119. HSS procedural test plate TP2: P-scan images from BSC side of centerline.
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