A Synchronous Sliding Construction Technology of Double-span Network Frame with Center Column

Abstract

The invention discloses a synchronous slippage construction technique for a double-span net rack with a middle column, and belongs to the technical field of steel structure installation. The synchronous slippage construction technique is a modern construction technology, specifically, steel structure units with stable structural systems are spliced into an integrated or stable unit on a site with splicing conditions; power is provided by a hydraulic jack through a slippage track and a supporting system of the slippage track; and through the pushing effect of crawl devices, the structure is moved to the designed position through the hydraulic synchronous working principle under control of a computer operating system. The synchronous slippage construction technique is different from a traditional traction mode by a winch steel wire rope, the situation that a steel structure shakes or vibrates during starting and braking of pushing slippage due to extension of a flexible steel strand is avoided, and the thrust force and the thrust speed in the slippage process of the hydraulic crawl devices are completely measurable and controllable. A computer system detects the thrust force and thrust speed of the hydraulic crawl devices through a sensor, the crawl devices are controlled to be coordinating and synchronous, the system makes adjustments in time and gives an alarm signal when accident overloading or synchronous tolerance occurs, and accordingly the slippage process is safer and more reliable.

Description

technical field [0001] The invention relates to the technical field of steel structure installation, in particular to a construction process of synchronous sliding of a double-span network frame with center columns. Background technique [0002] The grid frame is generally a space structure formed by connecting multiple rods through nodes according to a certain grid form. It has the advantages of small space force, light weight, high rigidity, and good seismic performance. It can be used as raw materials for gymnasiums, factories and mines. Greenhouses, steel structure roofs of exhibition buildings, etc. As the country increases investment in and support for energy-saving, environmental protection and dust-proof facilities, my country has set off an upsurge in the construction of energy-saving and environmental protection raw material greenhouses, and the application of large-span grid building steel structures has also developed rapidly, thus putting forward the steel struc...

AI Technical Summary

Problems solved by technology

The tire frame slipping method, the overall lifting method and the full-scale scaffolding construction method require that the inner site of the span be flat and free of obstacles; while the high-altitude bulk method crane station and the assembly site of small components are limited, and the safety risk factor is large, and the large-span It is difficult to control the overall downward deflection during the installation process of the network frame, and it is also difficult to guarantee the installation period

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