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In pre-stressing 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?

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Question ajoutée par Muhammad Shakeel , CAD Design Manager , M/S zeeruk Intl.
Date de publication: 2015/03/29
Muhammad Shakeel
par Muhammad Shakeel , CAD Design Manager , M/S zeeruk Intl.

If wires supports are stressed individually inside the similar duct, then those stressed strand will allow against those unstressed ones and trap them.

Alex Al Yazouri
par Alex Al Yazouri , General Manager , Al Mushref Cooperative Society

If wires/strands are stressed individually inside the same duct, then those stressed strand/wires will bear against those unstressed ones and trap them.

Therefore, the friction of the trapped wires is high and is undesirable.

Agree with both answers given by Mr.Alex and Mr. Shakeel

Ali Mohamed Ahmed
par Ali Mohamed Ahmed , site engineering , شركة مقاولات

Follow up...thank you Mr. Muhammad Shakeel

Elke Woofter
par Elke Woofter , Project Assistant , American Technical Associates

I am agreeing with answers given above and have nothing to add...

Wolf Klaas Kinsbergen
par Wolf Klaas Kinsbergen , Managing Director, Designer , ingenieursbureau KB International NV

otherwise the stress in the wires can diver, and that rules out one of the wires! very dangerous

Mahmoud Zaher Tarakji
par Mahmoud Zaher Tarakji , مدير , أوال جاليري

(Thanks . I agree with ( ALEX, KLAAS  & SHAKEEL 

RAJ DAHIYA
par RAJ DAHIYA , Senior MEP Projects Manager , Trinity Engineering Services L.L.C.

Endorsing answers given by other experts

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