Jobridge

Abstract

The Jobridge is a portable bridge that is used to cross over grade beams or other obstacles on a construction site. It is constructed of 6061 aluminum to allow it to be lifted and moved with light machinery or equipment. It is coated with a non-slip coating that is safety yellow. The Jobridge is rated for a maximum weight load of 12,000 lbs. To cross the Jobridge the equipment must be 12,000 lbs or less and the tracks must be 8 ft wide or less. Obstacles that are traversed must be less than 30 inches wide and less than 13 inches tall in the center. The Jobridge is more suited for crossing buried, or partially buried, obstacles or narrow trenches like grade beams. The intent is to prevent damage to the grade beam side wall (obstacle) or steel reinforcements that may protrude from the grade beam.

1 . The invention shall be called the Jobridge. 
     
     
         2 . The main purpose of the Jobridge is to facilitate crossing grade beams within a foundation work site.
 a. The Jobridge may be used by people or light equipment such as skid steers or miniature excavators up to 12,000 lbs.   b. The Jobridge has a weight rating of 12,000 lbs with a 2.5 safety factor.   
     
     
         3 . The Jobridge may also be used for crossing other small trenches, but the Jobridge must have at least  3 A of its foundation, on each side, in contact with solid ground. 
     
     
         4 . The Jobridge may be used to facilitate crossing over pipes or electrical lines.
 a. The electrical lines and pipes passing under the Jobridge must not contact the structure of the Jobridge.   
     
     
         5 . The Jobridge has a hollow section through the center to allow obstructions to pass under it without contacting them.
 a. This hollow section shall be 2.5 feet wide, 13 inches tall, and pass through the entire width of the Jobridge.   
     
     
         6 . The Jobridge shall be constructed of 6061 T6 aluminum extrusions and treadplate with a non-slip coating.
 a. The non-slip coating shall be safety yellow.   
     
     
         7 . The Jobridge shall have permanently affixed lifting points so that it may be raised and lowered with machinery. 
     
     
         8 . The Jobridge may be carried into the work area by construction equipment, set in its designated place, crossed, lifted again, and moved to another place that needs to be crossed.
 a. It may also be left in a designated place for semi-permanent use.   b. Semi-permanent refers to the duration of the work being done in the construction area.