prestressing construction strand jack limit tool anchorage
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Stressing Jack | TMG
The tendon specimen is mounted in the test rig or testing machine, observing the same geometrical configuration of the individual tensile elements in the specimen to that specified in the ETA applicant’s guide.The tendon is stressed at one end with representative equipment (Stressing Jack) comparable to the one used on construction site, and specified in the ETA applicant’s guide, in steps corresponding to 20%, 40%, 60% and 80% of the characteristic tensile strength of the tensile ...
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Post Tensioning Tendon - onlinecivilforum.com
The anchorage consists of an iron casting and a conical, two-piece wedge which grips the strand. In bonded systems, two or more strands are inserted into a metal or plastic duct that is embedded in the concrete. T e strands are stressed with a large, multi-strand jack and anchored in a common anchorage device.
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Prestressed Concrete (Post Tensioning Concrete): CNM Brand
Post Tensioning Concrete, Post-tensioned Anchorage, Post Tensioning Materials, Post Tensioning Equipment, Post-tensioning Jack, Post-tensioning Pump, Post-Tensioning Duct, Prestressed Anchorage, China Supplier, Chins Post Tensioning Anchorage Supplier, PC Strand, PC Steel Wire, Prestressed Cable, Monostrand Anchorage System, Stressed Jack and Pump, Sheathing Duct, Flat Anchorage, Post ...
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METHODS OF SYSTEMS OF PRESTRESSING AND ANCHORAGE | CIVIL
b) Plate anchorages. Tube anchorage consists of a bearing plate, anchor wedges and anchor grips. Anchor plate may be square or circular and have 8 or 12 tapered holes to accommodate the individual prestressing wires. These wires are locked into the tapered holes by means of anchor wedges.
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Glossary of prestressed concrete terms - Wikipedia
A prestressing system utilising tendons with single strands, or tendons able to be tensioned using a mono-strand jack.: 12 mono-strand jack A tensioning jack that applies force to a single tendon strand at a time. multi-strand A prestressing system utilising tendons with multiple strands, and are tensioned using a multi-strand jack.: 13 multi-strand jack A tensioning jack that applies force to a more than one tendon strand at a time. N O offset
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Appendix A Prestressing Systems and Anchorage Design
This system should only be used for strand not exceeding 250 kN (56,000 lb), guaranteed ultimate tensile strength which is the limit of jack capacity. For higher strength strands, this anchorage should be used, but with the total number of strands reduced to maximum of 13.
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