Construction method of a gantry transfer platform of a nuclear power plant

By employing ground assembly and prefabrication methods and segmented hoisting, the complex construction of nuclear power plant gantry transfer platforms was solved, enabling efficient and safe installation of large nuclear power plant equipment transfer platforms.

CN116397941BActive Publication Date: 2026-05-29CHINA NUCLEAR IND 24 CONSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NUCLEAR IND 24 CONSTR
Filing Date
2023-05-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing construction methods for gantry transfer platforms in nuclear power plants are complex and cannot meet the needs of transferring large equipment.

Method used

The method of ground assembly and prefabrication, and segmented overall hoisting is adopted. It is assembled in three parts. First, the weight, center of gravity and eccentricity data of the structure to be hoisted are obtained. Temporary bolts are used for connection to ensure the installation quality of high-strength bolts. A-type pipe supports are used for support.

Benefits of technology

It improved construction quality and safety, reduced construction difficulty and risks, met the requirements for the transfer of large equipment in nuclear power plants, saved on scaffolding usage, and improved work efficiency and installation quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116397941B_ABST
Patent Text Reader

Abstract

The application discloses a construction method of a gantry transfer platform of a nuclear power station, and relates to the technical field of steel structure engineering construction of the nuclear power station. First, the transfer platform is assembled on site according to the sequence of assembling pier arrangement, axis line laying, component positioning, installing temporary bolts, overall size inspection and adjustment, high-strength bolt hidden transfer and acceptance; then, the overall acceptance of the assembled transfer platform is carried out; then, the transfer platform is installed according to the sequence of transfer platform module installation, installation of connecting components between the side beam and the heavy rail beam and the lower platform beam, installation of the elevation work platform guardrail and steel plate laying; finally, A-shaped tubular supporting members are installed at the lower part of the transfer platform. The stability and safety during installation are improved, the construction difficulty is reduced, the installation quality is improved, and when each installation node of the platform is installed, a certain number of temporary bolts are first penetrated into the platform, so that the eccentricity of the transfer platform during installation can be better controlled.
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