Cable-stayed bridge cable saddle with split clamping and anchoring anti-sliding devices

Abstract

The invention relates to a cable-stayed bridge cable saddle with split clamping and anchoring anti-sliding devices. The cable saddle comprises wire distribution pipes, the split clamping and anchoring anti-sliding devices are arranged at the two ends of the wire distribution pipes, each split clamping and anchoring anti-sliding device comprises an anti-sliding block main body and pressing plates, through holes matched with the wire distribution pipes in distribution are formed in the anti-sliding block main bodies, each anti-sliding block main body is formed by assembling a plurality of anti-sliding block sub-bodies in sequence, semicircular holes are correspondingly formed in the acting surfaces of every two adjacent anti-sliding block sub-bodies respectively, and each through hole is formed by the semicircular holes in the corresponding set; clamping covers are arranged on the inner walls of the front ends of the through holes, threads capable of being embedded in stranded steel wires are formed on the matching surfaces of the clamping covers and the stranded steel wires, the pressing plates are tightly attached to the outer sides of the anti-sliding block main bodies and abut against the exposed end faces of the clamping covers, and holes matched with the through holes in the anti-sliding block main bodies in arrangement are formed in the pressing plates. The cable saddle of the structure can provide compete anti-sliding force in the whole process from construction to bridge formation and in later-period operation.

Description

technical field [0001] The invention relates to a cable-stayed bridge saddle, in particular to a cable-stayed bridge saddle with an anti-skid device. Background technique [0002] In the cable-stayed bridge with low towers, the steel strand cable-stayed cables pass through the pre-buried cable saddles in the bridge towers, and are anchored to the box girders on both sides of the bridge towers. During the construction and operation of the cable stay, the loads on both sides of the cable tower are unequal, which leads to the unbalanced force of the cable on both sides of the cable saddle. Therefore, measures should be taken to prevent the steel strands in the cable stay from Under the action of balanced cable force, it slides in the cable saddle to ensure the safety of the bridge. Secondly, in order to ensure that the stay cables can be replaced without interrupting the traffic, it is necessary to enable each steel strand in the stay cables to be replaced individually. [00...

AI Technical Summary

Problems solved by technology

The above technology has the following disadvantages: during construction, the hollow cylindrical bodies must be arranged alternately on both sides of the cable saddle, and the anti-sliding force on one side of the cable saddle can only bear half of the overall anti-sliding force

The saddle of this structure can provide anti-sliding force for all n steel strands in the cable, but there are still the following deficiencies: when the m (1≤m≤n) steel strands in the cable need to be replaced during the bridge operation When threading, the locking structure must be completely disengaged from the hollow cylindrical body at this time

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