Steel strand inhaul cable tension construction method by taking slip-resistant stud as locking device
A technology of locking device and construction method, which is applied in the direction of cable-stayed bridges, erection/assembly bridges, bridge forms, etc., can solve the problems of difficult replacement of saddle internal pipelines, cracking and damage of mortar bodies, narrow gaps of double casings, etc., and achieve anti- The locking force of the sliding key is reliable and the effect of improving safety
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[0061] Such as Figure 9 and Figure 10 As shown, a kind of tensioning construction method of the steel strand cable using the anti-skid key as the locking device in the present embodiment is provided with a drag cable using the anti-skid key as the locking device on the tower column, and each steel An anti-skid key is arranged on the twisted wire, and the anti-skid key is arranged on both sides of the tower in a staggered manner, including the following steps:
[0062] Step 1: A unilateral hypertension force is applied to the cables that are not provided with anti-skid keys on the side near the tower column.
[0063] Step 2: The cables on one side of the tower column are respectively over-tensioned by half of the number of steel strands during the construction stage.
[0064] Step 3. When tensioning each bundle of cables, it should start from the steel strand located in the middle, and then go outward one by one.
[0065] Step 4. Record the target tension force of each cab...
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