Large, middle span width roof hollow thermal insulation, heat insulation structure and construction method thereof

Abstract

The invention provides a large-span and mid-span hollow roof heat-insulating structure and a construction method thereof, the structure includes an upper structural layer and a lower structural layer; the upper structural layer is an upper chord ribbed plate layer which consists of a first prefabricated slab that is taken as an upper chord rib and a second prefabricated slab that is taken as an upper chord slab; the lower structural layer is a lower chord ribbed layer which consists of a lower chord rib and a lower chord slab. The upper chord ribbed plate layer and the lower chord ribbed plate layer are connected into a cancelled structure by a shear key. The structure provided by the invention not only keeps the construction energy saving effect of the heat preservation in the overhead house surface but also improves the rigidity and carrying capacity of the roof structure; the structure also has double waterproof and anti-seepage lines in the view of waterproof and anti-seepage effect.

Description

technical field [0001] The invention relates to a building structure technology, in particular to a large and medium-span roof hollow heat preservation and heat insulation structure. Background technique [0002] The usual building energy-saving measures mainly include wall envelope, roof and building doors and windows. Among them, the roof is an integral part of the enclosure structure, and its construction method plays a vital role in the energy saving of the entire building. [0003] Traditional roof energy-saving measures mainly focus on the "structural energy-saving" of the roof, but the traditional construction practices have not fully utilized the potential of "structural energy-saving". For example, in hot-summer and cold-winter regions, the general roofing construction method is not very efficient in terms of heat preservation or heat insulation, and the effect is not very good. Compared with other floors, the rooms on the top floor usually have higher temperature...

AI Technical Summary

Problems solved by technology

Prefabricated small slabs and brick piers are non-structural components. Their function is to form an overhead layer to achieve the purpose of thermal insulation. However, their existence limits the use of the roof and cannot be used for the upper roof. The existence of structural components increases the bearing load of the structural layer; as the years of use increase, prefabricated small slabs are often broken and destroyed; as the main enclosure structure, the roof not only should

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