Jigging the jig

Posted by Rupert Connor on Saturday, June 13, 2015 Under: Bridge
A few days of bright sunshine earlier this week meant we could make a jig to hold the holding down bolts in position and add the last half ton or so concrete into the abutments. The polystyrene cones around the bolts (to be removed once the concrete has set) allow for final adjustments to the positions of the bolts to make sure they fit into the base plates that the main beams will be fitted to. The voids left by the cones will be filled with construction grout to hold the bolts firmly in their final alignment. Much measuring, re-measuring and making sure everything would stay in place was done before mixing the concrete.

In : Bridge 

Tags: bridge construction building