In Prestressing Work, If More Than One Wire Or Strand Is Included In The Same Duct, Why Should All Wires/strands Be Stressed At The Same Time?
Question:In prestressing work, if more than one wire or strand is included in the same duct, why should all wires/strands be stressed at the same time?
Answer:If wires/strands are stressed individually inside the same duct, then those stressedstrand/wires will bear against those unstressed ones and trap them. Therefore, the friction of the trapped wires is high and is undesirable.
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