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Publication Number:  FHWA-HRT-17-109    Date:  January 2018
Publication Number: FHWA-HRT-17-109
Date: January 2018

 

Cable-Stay Strand Residual Strength Related to Security Threats

APPENDIX D. Hardness Data of Select Thermal Lance Specimens

Figure 74 through figure 83 show pictures of transverse mounts of wires removed from strands A1, A32, A30, A34, A36, B6, B12, B18, B23, and B28, respectively. Each figure depicts various hardness measurements that were taken and an estimate of the temperature exposure based on the correlation presented in figure 71.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 1,100 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 396.3 and 404.2. Wire 2 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 411.3 and 414.3. Wire 3 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 418.3 and 407.4. Wire 7 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 426.1 and 415.7. Wire 4 is annotated with 1,225 °F estimated temperature. Wire 4 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 390.0, 335.6, and 402.8, and the right side has three annotations near the fracture with Vickers hardness readings of 312.1, 321.0, and 322.7. Wire 5 is annotated with 1,100 °F estimated temperature. Wire 5 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 403.3, 392.8, and 377.7, and the right side has three annotations near the fracture with Vickers hardness readings of 400.4, 419.5, and 396.8. Wire 6 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 419.5 and 410.6.

Source: FHWA.
Figure 74. Photo. Hardness results of wires of strand A1.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 900 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 465.3 and 485.2. Wire 2 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 491.9 and 497.3. Wire 3 is annotated with 825 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 469.9 and 493.0. Wire 7 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 501.9 and 487.4. Wire 4 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 483.6 and 499.1. Wire 5 is annotated with 1,150 °F estimated temperature. Wire 5 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 422.8, 371.7, and 413.3, and the right side has three annotations near the fracture with Vickers hardness readings of 394.5, 369.2, and 408.5. Wire 6 is annotated with 1,025 °F estimated temperature. Wire 6 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 407.4, 420.9, and 425.1, and the right side has three annotations near the fracture with Vickers hardness readings of 440.4, 446.1, and 437.3.

Source: FHWA.
Figure 75. Photo. Hardness results of wires of strand A32.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 1,125 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 392.0 and 383.3. Wire 2 is annotated with 1,125 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 389.7 and 389.5. Wire 3 is annotated with 1,175 °F estimated temperature. Wire 3 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 382.1, 378.6, and 377.2, and the right side has three annotations near the fracture with Vickers hardness readings of 371.2, 359.2, and 368.4. Wire 7 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 416.1 and 413.1. Wire 4 is annotated with 1,200 °F estimated temperature. Wire 4 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 358.8, 343.7, and 349.5, and the right side has three annotations near the fracture with Vickers hardness readings of 365.6, 343.8, and 342.6. Wire 5 is annotated with 1,100 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 397.8 and 400.3. Wire 6 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 420.5 and 406.3.

Source: FHWA.
Figure 76. Photo. Hardness results of wires of strand A30.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 1,050 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 437.8 and 430.0. Wire 2 is annotated with 975 °F estimated temperature, and another annotation points to a location in the middle of the wire with a Vickers hardness reading of 459.6. Wire 3 is annotated with 1,000 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 453.8 and 448.8. Wire 7 is annotated with 950 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 466.5 and 468.0. Wire 4 is annotated with a 975 °F estimated temperature, and two other annotations point to two locations on the right side of the wire with Vickers hardness readings of 461.8 and 456.6. Wire 5 is annotated with 1,475 °F estimated temperature. Wire 5 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 337.1, 306.1, and 365.1, and the right side has three annotations near the fracture with Vickers hardness readings of 303.9, 307.4, and 294.0. Wire 6 is annotated with 1,500 °F estimated temperature. Wire 6 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 330.3, 317.2, and 348.1, and the right side has three annotations near the fracture with Vickers hardness readings of 380.7, 394.4, and 384.2.

Source: FHWA.
Figure 77. Photo. Hardness results of wires of strand A34.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 1,000 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 458.8 and 438.8. Wire 2 is annotated with 950 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 462.0 and 468.9. Wire 3 is annotated with 850 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 471.7 and 488.0. Wire 7 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 481.9 and 517.0. Wire 4 is annotated with 925 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 468.8 and 475.1. Wire 5 is annotated with 950 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 472.1 and 465.6. Wire 6 is annotated with 900 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 483.1 and 468.4.

Source: FHWA.
Figure 78. Photo. Hardness results of wires of strand A36.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 950 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 465.4 and 465.3. Wire 2 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 497.6 and 504.6. Wire 3 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 499.2 and 501.5. Wire 7 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 510.1 and 496.6. Wire 4 is annotated with 900 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 470.7 and 480.0. Wire 5 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 503.1 and 490.6. Wire 6 is annotated with 1,025 °F estimated temperature. Wire 6 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 378.8, 383.1, and 398.3, and the right side has three annotations near the fracture with Vickers hardness readings of 412.6, 395.2, and 403.5.

Source: FHWA.
Figure 79. Photo. Hardness results of wires of strand B6.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 1,100 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 411.0 and 404.4. Wire 2 is annotated with 1,125 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 393.7 and 382.8. Wire 3 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 418.1 and 420.3. Wire 7 is annotated with 1,075 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 416.6 and 412.9. Wire 4 is annotated with 1,150 °F estimated temperature. Wire 4 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 351.5, 380.8, and 366.9, and the right side has three annotations near the fracture with Vickers hardness readings of 382.1, 370.1, and 380.2. The left side of the wire 4 fracture also has the slag ball with three annotations with Vickers hardness readings of 183.2, 183.4, and 178.3. Wire 5 is annotated with 1,175 °F estimated temperature. Wire 5 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 361.8, 350.6, and 355.6, and the right side has three annotations near the fracture with Vickers hardness readings of 360.3, 383.3, and 344.2. Wire 6 is annotated with 1,300 °F estimated temperature. Wire 6 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 324.1, 280.7, and 277.0, and the right side has three annotations near the fracture with Vickers hardness readings of 283.3, 317.6, and 279.4.

Source: FHWA.
Figure 80. Photo. Hardness results of wires of strand B12.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 494.2 and 501.2. Wire 2 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 492.0 and 495.5. Wire 3 is annotated with 700 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 481.7 and 495.5. Wire 7 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 519.6 and 504.9. Wire 4 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 502.4 and 499.1. Wire 5 is annotated with 1,175 °F estimated temperature. Wire 5 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 355.3, 362.8, and 362.4, and the right side has three annotations near the fracture with Vickers hardness readings of 386.7, 357.3, and 397.4. Wire 6 is annotated with 1,175 °F estimated temperature. Wire 6 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 421.3, 357.7, and 426.8, and the right side has three annotations near the fracture with Vickers hardness readings of 353.5, 363.0, and 370.5.

Source: FHWA.
Figure 81. Photo. Hardness results of wires of strand B18.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with “not polished” and has no hardness readings. Wire 2 is annotated with 1,075 °F estimated temperature. Wire 2 is fractured into two pieces; the left side has three annotations near the fracture with Vickers hardness readings of 438.4, 426.1, and 424.4, and the right side has three annotations near the fracture with Vickers hardness readings of 455.8, 414.9, and 416.7. Wire 3 is annotated with 1,000 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 444.8 and 451.2. Wire 7 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 493.7 and 496.6. Wire 4 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 495.7 and 490.8. Wire 5 is annotated with 700 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 494.9 and 479.5. Wire 6 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 491.3 and 490.9.

Source: FHWA.
Figure 82. Photo. Hardness results of wires of strand B23.

This photo shows a round transparent epoxy casting that contains seven mounted and polished wires, all oriented horizontally. The wires are labeled from top to bottom as “Wire 1,” “Wire 2,” “Wire 3,” “Wire 7,” “Wire 4,” “Wire 5,” and “Wire 6.” Wire 1 is annotated with 875 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 487.2 and 468.7. Wire 2 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 491.0 and 490.8. Wire 3 is annotated with 850 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 482.1 and 479.1. Wire 7 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 489.0 and 500.9. Wire 4 is annotated with 850 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 488.0 and 472.5. Wire 5 is annotated with less than 600 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 485.4 and 494.7. Wire 6 is annotated with 800 °F estimated temperature, and two other annotations point to two locations in the middle of the wire with Vickers hardness readings of 488.8 and 477.4.

Source: FHWA.
Figure 83. Photo. Hardness results of wires of strand B28.

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