Analysis of partial revised keys Technical specification for cable structures(JGJ 257-2012)
The principles and main contents of the partial revision of Technical specification for cable structures(JGJ 257-2012)were introduced.This partial revision work reflects the new achievements and new experience in cable structure products,design and construction in the past 10 years at home and abroad as much as possible.The main contents of combing,changing and perfecting include the classification of cable material,the allowable value of roof deflection and the corresponding load of calculation point,the principle and index of tension control,the design value of flexible cable bearing capacity,the requirement of joint bearing capacity,the monitoring of cable structure and the provisions on rigid cable.Finally,the future work was prospected.
cable structureallowable value of roof deflectiondesign value of cable strengthcable structure monitoring
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