A lightweight main cable saddle and installation method thereof

By adopting the three-stage structural design of the lightweight main cable saddle and combining forging and welding, the problems of heavy quality and low material performance of the main cable saddle of the suspension bridge are solved, and the lightweight and high strength of the cable saddle is achieved, which reduces the difficulty of transportation and installation and shortens the bridge construction cycle.

CN119321090BActive Publication Date: 2025-03-25贵州交通建设集团有限公司
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Patent Information

Application Number
CN202411865777.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-25
Estimated Expiration
2044-12-18

AI Technical Summary

Technical Problem

The main saddle of the suspension bridge is heavy in mass, which makes it extremely difficult to transport and install in mountainous areas. The traditional casting process leads to uneven material structure and low mechanical properties, making it difficult to match high-strength main cable wires.

Method used

The three-stage structural design of the lightweight main cable saddle is adopted, and the front, middle and rear sections are connected by high-strength bolts to form an inverted trapezoidal wedge joint surface. Combined with the structural design of forging and welding, welded and formed by combining forged steel parts and steel plates to improve the strength and durability of the cable saddle.

Benefits of technology

The cable saddle is lightweight, reduces transportation costs and difficulty, improves the mechanical properties of the cable saddle, enables it to match high-strength main cable wires, and shortens the bridge construction cycle.

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Abstract

The present application relates to a lightweight main cable saddle and its installation method, and specifically discloses a lightweight main cable saddle. The lightweight main cable saddle adopts a three-section design of forged welding structure, and is connected by high-strength bolts after being hoisted in sections at the construction site; the joint surface of the front section and the middle section and the joint surface of the middle section and the rear section form an inverted trapezoidal wedge, so that when the main cable saddle is subjected to the blocking force of the main cable, each section is evenly stressed. In the process of hoisting the main cable saddle, the rear section, the middle section, and the front section are lifted to the main tower in sequence, but after the middle section is lowered, it is first supported at a higher height. After the front section is lifted and lowered, the joint surface of the rear section and the front section forms a suitable wedge, and then the middle section is put into place to make the rear section, the middle section, and the front section fit tightly, and then connected with high-strength bolts.
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