Large-span combined super-heavy eccentric slope angle steel structure overall synchronous jacking equipment

Abstract

The invention discloses a large-span combined overweight eccentric slope angle steel structure overall synchronous jacking device, which includes a plurality of jacking units, and each jacking unit includes cross joists and jacking units coaxially arranged sequentially from top to bottom. The jacking frame is lifted by a jack; the jacking frame includes a jacking bracket, an initial section, a multi-level standard section and a base arranged coaxially from top to bottom; The bottom of the joist is equipped with a hemispherical hinge support that coincides with the jacking ball holder, and the top string ball holder of the grid frame is fixed above the cantilever end of the cross joist; the bottom surface of the initial section of the jacking frame of all jacking units The height from the ground is the same, and the top surface is leveled along the slope of the grid; the jacking frame is tied with the combined steel structure through the inverted cable wind rope, and the combined steel structure is tied with the jacking foundation through the in-place cable wind rope. The invention can safely and reliably realize the overall synchronous jacking of the combined steel structure, and can greatly reduce high-altitude operations.

Description

technical field [0001] The invention relates to a steel structure jacking device, in particular to a large-span combined overweight eccentric slope angle steel structure overall synchronous jacking device. Background technique [0002] With the continuous development of construction technology, the grid structure has been rapidly developed and widely used in the past 30 to 40 years due to its characteristics of high rigidity, good integrity, good seismic performance, light weight, steel saving and good adaptability. At present, the traditional grid installation methods include high-altitude assembly method, lifting method, overall hoisting method and jacking method, which are several common construction methods. The high-altitude assembly method needs to consume a large amount of frame materials to build an operation platform, and the material rental and labor costs are relatively high. Although the overall hoisting and positioning method has the characteristics of simple c...

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Problems solved by technology

The high-altitude assembly method needs to consume a lot of frame materials to build the operation platform, and the material rental and labor costs are high

Although the overall hoisting and positioning method has the characteristics of simple construction, convenience, short construction period, and easy guarantee of project quality, the cost of the crane shift is too high, and the crane travel road needs to be dealt with. The construction cost is very high, and the key is that it is still limited by the site. , it is difficult to meet the construction requirements; although the overall hydraulic lifting is not limited by the site, the requirements for the original structure as a reliable hoisting fulcrum are relatively high, and the structural steel column cannot meet the bearing capacity requirements

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