Project Description:
21-Mile stretch of I-4, including 13 widened bridges, 74 replaced bridges, and 53 new bridges. There will be a total of 15 Interchanges reconstructed. The design build team will be responsible for designing, building, financing, operating, and maintaining the structures for 40 years.
SGL Constructors (a joint venture of Skanska, Granite and Lane Construction) installed Disktron Bearings on the I-4 Ultimate Project. The Disktron Bearings utilized are comprised of fixed and unidirectional expansion bearings ranging from 345 to 2,359 kips in capacity. The design engineer HDR specified Disktron Bearings due to their versatility and long term performance record on bridges all over the globe. SGL selected R. J. Watson as their bearing supplier based on their competitive price and their reputation for on time performance. An R. J. Watson field engineer was recently on site to supervise the installation of the Disktron Bearings which were approved by the site engineer Volkert.
Bridge #231 (I-4 Westbound to SR408 Westbound)
- 23 disc bearings
- Vertical Load – 365 kips to 1,899 kips
- Horizontal Load – 10% of the vertical load
- Longitudinal Displacement – 3.68” to 6.75”
- Transverse Displacement – 0.125”
- Rotation – 0.02 radians (service load)
Bridge #237 (SR408 Eastbound to I-4 Westbound)
- 10 disc bearings
- Vertical Load – 393 kips to 1,403 kips
- Horizontal Load – 10% to 22% of the vertical load
- Longitudinal Displacement – 0.13” to 4.5”
- Transverse Displacement – 0.13” to 3.5”
- Rotation – 0.02 radians (service load)
Bridge #240 (SR408 Westbound to I-4 Westbound)
- 50 disc bearings
- Vertical Load – 345 kips to 2,359 kips
- Horizontal Load – 10% to 36% of the vertical load
- Longitudinal Displacement – 0.125” to 5.6875”
- Transverse Displacement – 0.125” to 5.6875”
- Rotation – 0.02 radians (service load)