Repair of SR 2 cost $42,000 and was completed in just four days helical Piers, without needing to shut down the one lane. A more traditional repairs would cost around $170,000, and would have required a week of closures for lanes as well as traffic controls. In the final analysis the bridge would have foundation repair Utah replacement at a expense of around $700,000. The repair made with carbon fiber has the potential to keep the bridge from needing to be repaired by bending helper bends, and has also extended the lifespan of the bridge up to the period of 20 years.
A second bridge that will be fixed using carbon composites made in a factory is on Lee Road over I-20 near Atlanta The bridge, which measures 258 feet helical Piers, was constructed in the year 1962. A quarry as well as a number of smaller industries within the region caused massive truck traffic, which resulted in moderate cracks in the bridge’s deck. The majority cracks were at the full depth and could develop into a major issue. Only the part of the deck with the most damage was repaired for avoid any further damage.
Would require four days of shutting down the lanes
The surface was planned to allow for the installation of carbon sheet 0.05 inch thick, 2 inches wide and in various sizes. Cracks were not sealed by epoxy to allow inspectors helical Piers to determine the amount of time repairs required. But, two parts of epoxy were applied to the plates which were then rolled with hand to position them beneath the deck. Analysis of the results later showed that there were not any significant changes to cracks openings.
The repair of just one quarter of the ending span was completed at the. End of the year 1998 and estimated to cost approximately $4,000. The traditional repair would have required the replacement of the deck. Which would have involved hydroblasting helical Piers of up to 2.5 inches prior to repouring deck. The cost would have been $290,000, and would require four days of shutting down the lanes. Carbon fiber repairs, if it is installed to all the deck. Would not require closure of lanes, and will cost $170,000. That’s a saving $120,000.
APPLICATION
The results from the study opened the way for the repair. Of the bridge situated on SR 120 that runs alongside Interstate 85 near Atlanta. In 1998, a truck which was too high caused damages to the bridge. Which an exposed steel reinforcement on the concrete girder’s exterior.
Repairs were made within minutes of the accident. And was completed in just two days, at a expense in the region of 33,000 dollars. The carbon fiber repair allowed the daily traffic of 30,000 vehicles all access to bridge. In the past the typical repair replacement of bridge beams that were damaged by storms. Could cost more than $130,000 and could have led to one-month (or longer) shut down of the road.
BENEFITS
The bridges repaired with carbon fiber composites and the results of the various laboratory. Tests carried out under this research project demonstrate that this technology can be adapted. To be used effectively and efficiently for the repair and rehabilitating bridges. Because of this research Utah residential helical piers, Georgia DOT was able to use carbon. Fiber composites for the urgent repair to the bridge.
The advantages of this technology include:
- quick repairs,
- minor inconvenience for drivers
- very not requiring any specific equipment or heavy equipment
- is a boost in the lifespan of bridges and
- an increase in the repair of bridges.
It is believed to be that Georgia DOT Maintenance Office estimates that carbon. Fiber can be used to construct 20 bridges every year across Georgia helical Piers. This technique could save about $5 million annually , based. On an estimate of the replacement cost of the repair cost for carbon fiber. As well as an assumption of a bridge’s lifespan for 20 years.
