What happens if you forgot to stress an unbonded post-tensioning tendon at the construction joint and have already poured the subsequent pour? . . . → Read More: Missed Stressing Operation
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On rare occasions, the ironworker/installer will need to detension an already-stressed post tensioning tendon. The reason may be due to a repair procedure or re-stressing due to out-of-range elongation readings. Recommendations: During the detensioning process, the post-tensioning tendon will have to be “over-stressed.” The PTI Field Manual recommends that the hydraulic jack and pump gauge . . . → Read More: Detensioning Unbonded Post-Tension Tendons Hiring a quality Unbonded Post-Tension Supplier can be the difference between a smooth construction project and a problematic situation. The Post-Tension (PT) supplier will play a key role in your reinforced concrete project. Therefore, general contractors and concrete contractors need to choose wisely. Traditionally, the Post-Tension Supplier is awarded their contract after other subcontractors in larger . . . → Read More: 4 Questions to ask your Unbonded Post-Tension Supplier This short clip shows how to apply paint-marks prior to stressing of post-tension tendons. It’s recommended to use a straight-edge, metal to help with elongation measurements. Refer to the Post-Tensioning Institute’s “Field Procedures Manual for Unbonded Single-Strand Tendons” Chapter 7 for additional information. _________________________________________________ Copyright © 2011 by AMSYSCO, Inc. All rights reserved. . . . → Read More: Video : Applying paint mark for Tendon Elongation |
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