Construction method of asymmetric overall lifting of large grid structure

Abstract

The invention provides an asymmetric and integrated lifting construction method for a large scale grid structure. The method comprises the following steps: firstly, determining lifting point disposing positions according to mutual direction relationship between the asymmetrically supported large scale grid structure and a supporting structure; secondly, installing the large scale grid structure to form an integrated lifting body; thirdly, adjusting the center of gravity of the large scale grid structure in such a way that structural components of the large scale grid structure at the middle and upper levels of an area which is not enveloped by the lifting points are fixed in an area enveloped by the above lifting points as a counterweight in the form of bulk parts or small assembled units; and fourthly, lifting the large scale grid structure in position, then connecting and fixing, and mounting the bulk parts or small assembled units to preset positions. The construction method has the advantages that the construction period is short, the construction quality is high, and the construction process is safe and reliable, so that the overall construction cost is saved.

Description

technical field [0001] The invention relates to the field of overall lifting construction of large grid structures, in particular to a construction method suitable for asymmetric overall lifting of large grid structures. Background technique [0002] With the continuous prosperity of China's economy and the rapid development of urbanization, people's pursuit of material culture is getting higher and higher, and various large-scale construction facilities are flourishing, and they are also more artistic and expressive while developing to a higher and larger scale. Visual impact effect. In particular, the decorative or functional grid structure set on the top of the building, while meeting people's aesthetic requirements, also brings higher requirements and challenges to building construction. At present, for irregular and asymmetrically supported large grid floating frames such as asymmetric supports, the lifting points cannot be symmetrically set when using the traditional ...

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Problems solved by technology

[0003] First, the amount of high-altitude operations is large, safety protection is difficult, and safety hazards are high;

[0004] Second, the environmental conditions of high-altitude and aerial welding are harsh, and the construction quality is difficult to guarantee;

[0005] Third, the amount of high-altitude operations is large, the environmental conditions of high-altitude welding and other operations are harsh, it is inconvenient to carry out, and the on-site installation and construction period is long

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