A construction method for sub-unit hoisting of large-span double-layer steel reticulated shell roof

Abstract

The invention discloses a sub-unit hoisting construction method of a large-span double-layer steel reticulated shell roof. The specific construction link is to hoist the central unit first, then hoist 4 "main arches" to form a cross, and then hoist the remaining 4 "main arches" form a rice-shaped; finally, hoisting the "outer ring block", "middle ring block", "inner ring block" and high-altitude supplementary rods in order to complete the double-layer steel reticulated shell roof; Carry out flaw detection of the weld seam and recheck the elevation and positioning of the reticulated shell to correct the deviation. After confirming that there is no problem with the welding seam, elevation, and positioning, unload the reticulated shell and monitor the elevation and positioning of the reticulated shell in time to ensure that the roof of the steel reticulated shell is hoisted once. Qualification rate, the present invention is hoisted symmetrically by unit, without erecting a full support frame, first hoisting 4 unit blocks, and then transferring the support frame, hoisting the remaining 4 unit blocks, greatly reducing the number of supporting tire frames during the construction process. Effectively reduce the one-time investment of the tire frame and reduce the cost.

Description

technical field [0001] The invention belongs to building construction application technology, in particular to a sub-unit hoisting construction method of a large-span double-layer steel reticulated shell roof. Background technique [0002] At present, "National Fitness" has become an indispensable part of our people's daily life. The construction of a large number of sports venues has emerged as the times require. On the premise of meeting the requirements of building functions, more and more sports arenas with beautiful shapes and various forms Such buildings have sprung up like mushrooms after rain, especially the application of steel structure, which provides more thinking dimensions for the architectural design of sports venues. However, steel structure construction is often the focus and difficulty of engineering construction. If a reliable and effective construction plan is not formulated before construction, economic losses and safety accidents will eventually be caus...

AI Technical Summary

Problems solved by technology

However, steel structure construction is often the focus and difficulty of engineering construction. If a reliable and effective construction plan is not formulated before construction, economic losses and safety accidents will eventually be caused, and the results are often irreversible.

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