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Stressing Method

1. Putting Hydraulic Jack at the end of strand

2. Stressing the strand at 37.9% of Fpu = 7.10 tons and measuring its elongation

3. Stressing the strand at 75.8% of Fpu = 14.20 tons and comparing actual elongation with the theoretical elongation

   In case of actual elongation is in allowable range, the jaws can be installed and stop the process. If it not, the process shall be continued by increasing the stressing force.

4. Stressing the strand at 77.5% of Fpu = 14.53 tons and comparing actual elongation with the theoretical elongation

   In case of actual elongation is in allowable range, the jaws can be installed and stop the process. If it not, the process shall be continued by increasing the stressing force.

5. Stressing the strand at 80.0% of Fpu = 15.0 tons and comparing actual elongation with the theoretical elongation

  If actual elongtion is in allowable range, the jaws can be installed and stop the process. If it not, the stressing force has to be released and start stressing process at step 1 again.

  In case of starting stressing work again and its elongation still not in the allowable range, the jaws can be installed and stop the process. This data shall be recorded and summitted to Design Engineer.

6. After stressing the strand at 80.0% or its elongation is in allowable range, then install the jaws, release the stressing force untill zero, and measuring elongation to check Anchorage Slip