HP14x73 SPLICE CONNECTION

OUR JOB NO. 5088

TESTING RESULTS

     On Friday January 29,1999 a pull test was performed on the HP14x73 splice connection at Lowery Brothers Rigging Center in Marrero, Louisiana. The bolts had been previously torqued in a criss cross sequence beginning with the bolts in the middle of the connection working outward toward the bolts at the ends of the connection. The torque on each bolt was 1,600 pounds. This was achieved by using a torque wrench and multiplier that was calibrated by Professional Services, Inc. The loads applied to the splice connection were in increments of 50,000 pounds starting at 150,000 pounds and continued through to 400,000 pounds and finally to a load of 460,000 pounds. Each of the loads was sustained for five minutes and the connection checked for movement after each interval of loading.

The results of the test showed that the connection was able to withstand 460,000 pounds of force with minimal residual movement and 400,000 pounds of force with no residual movement. As you can see from the attached calculation sheet, the allowable loads for an HP14x73 pile with effective lengths of 30 ft. - 50 ft. varies from 270 kips to 108 kips. Since the connection was able to withstand 460,000 of force, it's minimum Factor of Safety is 1.7 and is thus deemed acceptable.