Construction method of skyline plate assembled roof coating waterproof layer at plate joint

Abstract

The invention provides a construction method of a skyline plate assembled roof coating waterproof layer at a plate joint. The construction method comprises the steps of laying a polyethylene polypropylene fiber coiled material, spraying a concrete interface agent, spraying a guniting coating, pasting a dipping cloth, fixedly connecting a plurality of galvanized flat irons and the like; all the steps are mutually linked and completed at a time; the construction mode of a conventional waterproof layer at the skyline plate assembled roof plate joint is overturned essentially; the overall load of a skyline plate roof is reduced; the waterproof effect of the waterproof layer can reach the level I; the wind uplift resistance and the dislocation resistance of a skyline plate are effectively enhanced; and the aging resistance is greatly improved. The construction method has the obvious and outstanding substantive features and is an advanced construction technology which is not adopted at the skyline plate assembled roof plate joint so far.

Description

technical field [0001] The invention belongs to the technical field of waterproof construction of building roofs, and in particular relates to a construction method of a skyboard assembled roof coating waterproof layer at the board seam. Background technique [0002] For spliced ​​buildings, the sky slab 1 is usually welded on the portal steel frame as the roof. The roof needs to be constructed as a waterproof layer, and the conventional construction steps at the joints of the slabs are combined with figure 1 as follows: [0003] 1. Slab seam filling: When the width of adjacent slab seams is relatively large or narrow at the top and wide at the bottom, structural steel bars for sealing should be welded in the joints, and then foam plastic rods should be laid on top of the structural steel bars, and finally fine stone concrete should be used to fill the gaps. The gaps between the boards are filled and sealed tightly. [0004] 2. Laying two-way steel mesh: Use two-way steel ...

AI Technical Summary

Problems solved by technology

[0009] 1. When the wind is strong, a wind vortex will be formed on the roof parapet, deformation joints, etc., and the wind vortex will cause a small amount of shaking on the skyboard of the entire roof. These shakings will cause degumming and cracking between the waterproof membrane layer and the roof, and When the waterproof membrane is laid, it is necessary to weld at the joints, especially the welding of the internal and external corners is complicated, and shaking will also cause these welds to be pulled apart. The above two situations will cause the roof to lose its waterproof effect

[0010] 2. Under the influence of strong winds or surrounding vibrations, the roof slabs will be misaligned or separated, and the waterproof membrane will be separated from the slab due to shear force or internally broken due to tension, so that the building roof cannot meet the original design Waterproof requirements, this phenomenon is especially common in coastal areas with strong typhoons or within the impact range of railway train vibrations

[0011] 3. The waterproof membrane is pasted with the concrete leveling layer with an adhesive. The aging period of the adhesive is often shorter than that of the waterproof membrane. When the waterproof membrane is within the normal service life, the adhesive has aged and failed. As a result, the entire waterproof layer is laid empty on the roof, and a leaking water channel is formed between the waterproof layer and the roof. The sky slab is soaked in water for a long time and eventually causes the slab to rot or even fall off. The waterproof function cannot be realized, and the safety of the building cannot be guaranteed. Assure

[0012] How to eliminate and solve the above-mentioned problems is one of the common research topics in this field, but so far, no research results to solve the above-mentioned problems have been seen.

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