Installation method of curved steel latticed shell structure with gradually varied gable starting span

Abstract

The invention discloses an installation method of a curved steel latticed shell structure with a gradually varied gable starting span. The installation method comprises the following steps of a, construction preparation; b, splicing block by block and segment by segment; and c, installing a purline system and a roof panel structure. Connection between a steel wire rope and a ball joint is achievedthrough a steel wire rope pulling device, the pulling stability of the steel wire rope is guaranteed, the steel wire rope is prevented from sliding, the perpendicularity of a vertical gable structureis guaranteed, and damage to a rod piece of the latticed shell structure in the steel wire rope pulling process is avoided; and meanwhile, temporary fixing devices are used for supporting the ball joints on the inner sides of the gable latticed shell units, the construction safety performance is improved, and the temporary fixing devices can eliminate the influence of site flatness errors on themounting precision, mounting construction between the ball joints and the temporary fixing devices is better facilitated, construction operation is convenient, field construction is flexible and convenient, precision errors are easy to adjust, construction efficiency is high, installation quality is guaranteed, potential safety hazards of aloft work are reduced, and construction cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of a curved steel reticulated shell dry coal shed structure, and in particular relates to a method for installing a curved steel reticulated shell structure with a gradual change in the starting span of a gable wall. Background technique [0002] With the continuous development of my country's industry, the construction market of industrial buildings such as large-span workshops and dry coal sheds continues to expand. The reticulated shell structure has high rigidity, small structural deformation, high stability, and material saving; it can be formed in the shape of the building. A variety of curved surfaces; easy and fast installation, mature and convenient calculation mode, etc., are widely used in this type of construction projects, among which the single-layer three-center circular curved reticulated shell with bolt ball joints as the main connection method is more common. This type of project often needs...

AI Technical Summary

Problems solved by technology

This type of project often needs to be constructed on the actual coal mine material stacking site without affecting its normal operation. Therefore, it is difficult to realize the hoisting in the airport under the actual material stacking and concrete coal retaining wall arrangement at the site; When the span of the shell gradually changes, the sliding method cannot be used for construction, so it is more appropriate to use the high-altitude bulk solution for hoisting

[0003] When the connection section between the structure and the end face of the gable wall presents a gradual change in span, the following problems are likely to occur during the actual construction process: 1. The verticality of the vertical gable wall structure must be ensured during the construction process and the subsequent process of the bulk reticulated shell unit; 2. In the upper and lower string ball nodes of the grid unit, only the outer balls are connected with the concrete structure by embedded supports, and the remaining inner balls need to be provided with temporary support frames for stable support during the construction process. It is difficult to control the positioning accuracy of the inner balls and the efficiency is low; ③High-altitude bulk The installation sequence of the process has a more complicated effect on the structural load and deflection

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