High-vanadium round wire tendon rope clamp as well as manufacturing process and design method thereof

Abstract

The invention discloses a high-vanadium round wire tendon rope clamp which comprises clamp bodies, connecting ear plates, an anticorrosion zinc layer, an anti-sliding metal layer and a high-strength bolt. According to the rope clamp, two rope clamp bodies which are symmetry in shape are integrally connected through the high-strength bolt so as to tightly clamp a high-vanadium round wire tendon rope body; the anti-sliding metal layer is filled at the contact part of the rope clamp bodies and the rope body; and the rope clamp bodies are subjected to hot galvanizing anticorrosion treatment. The invention also provides a manufacturing process of the rope bodies and a design method of shape and size. The rope bodies are machined by using high-strength steels, so that the problems of high manufacturing cost, quality defects and the like caused by the fact that cast steel joints are adopted are avoided. The rope clamp joint is simple in structure, convenient to manufacture and construct and economic and reasonable; the performance of the joint is verified through tests, so that the rope clamp joint is applicable to connection joints in a stretch-draw type rope rod beam pre-stress spatial structure. By adoption of the rope clamp, the force bearing performance of the high-vanadium rope body is effectively improved, the anticorrosion plated layer on the surface of the steel wire is protected, the anti-sliding ability of the rope clamp and the rope bodies is improved, so that the rope clamp is beneficial for the high-vanadium round wire tendon to be popularized and applied in China.

Description

technical field [0001] The invention relates to a cable connection node in a prestressed space structure of a tensioned cable bar beam in a building structure. More specifically, it relates to a cable clamp for improving the mechanical performance of the high-vanadium round steel wire rope and improving the anti-sliding friction force, as well as its processing technology and design method. Background technique [0002] In the prestressed space structure of long-span cable-strut beams, large unbalanced internal forces will be generated between the cable systems, and these unbalanced internal forces must be resisted by cable clamps, and the insufficient anti-slip ability of the cable clamps is likely to cause the cable clamps to slide and be engraved. If the protective material on the outer layer of the cable is damaged, the configuration of the cable system will be changed after the cable clamp slips, thereby changing the stress state and internal force between the cable sys...

AI Technical Summary

Problems solved by technology

The method of built-in zinc plate makes there are two contact surfaces (zinc plate and cableway, zinc plate and cable body) on the structure of the cable clamp, which increases the risk of slippage. For outdoor applications, the anti-corrosion performance of the structure is also poor; Sandblasting in the groove cannot solve the problem of the contact between the circular steel wire and the cable groove; to increase the contact area of ​​the cable body, the length of the cable clamp needs to be lengthened, so the number of high-strength bolts required for pre-tightening will also increase, which will affect the construction efficiency and increase the difficulty of construction , and affect the appearance of the cable clamp node

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