Bottom plate direct-laying separation load-bearing high-performance metal roof and construction method thereof

Abstract

The invention discloses a bottom plate direct-laying separation load-bearing high-performance metal roof and a construction method thereof. The metal roof comprises a main steel structure, wherein a bottom plate system, a functional filling layer and a flexible waterproof layer are laid on the main steel structure from bottom to top, a purline system penetrates through the bottom plate system, the functional filling layer and the flexible waterproof layer and is directly and fixedly connected with the main steel structure, and a rigid waterproof layer is fixed to the purline system. The construction method of the roof comprises the following steps that 1, main steel structure components are prefabricated in a factory; 2, the main steel structure is assembled on a construction site; 3, the bottom plate system and the functional filling layer are laid on the main steel structure; 4, the flexible waterproof layer is laid on the functional filling layer; 5, the purline system is connected to and installed on the main steel structure; and 6, the rigid waterproof layer is laid on the purline system, and the joint between the purline system and the flexible waterproof layer is sealed through a waterproof cover piece. The roof has multiple force transmission paths, the steel consumption is small, the flexible waterproof layer is complete, and the roof construction method has the advantages of being high in efficiency and safety.

Description

Technical field [0001] The present invention relates to a metal roof engineering technology, particularly to a high-performance backplane linear plated metal roof construction method for separating and load-bearing. Background technique [0002] With the construction of large public buildings across the rapid social and economic development, various transportation hubs, convention centers, stadiums, etc. in full swing, as an industrial metal roofing enclosure system with lightweight, high strength, rich styling and unique texture, simple construction and other advantages, to meet the shelter, a perfect fit for the expression of a variety of architectural art, are widely used in the development and construction of large-span public buildings. In recent years, with the increasing production of sheet metal, sheet metal coating, maturing cold roll forming techniques, various ancillary insulation, noise insulation, the rapid development of waterproof material, a metal plate green roof...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of this kind of anti-slab metal roof are: (1), the span of the anti-slab is small, and the purlins are densely arranged; (2), the self-weight of the roof system and the external load are all transmitted to the main steel structure through the purlin system, and the force transmission path is single. The purlin system bears a lot of force and uses a large amount of steel; (3) All aluminum alloy supports need to be fixed on the purlin system with self-tapping nails to break through the flexible waterproof layer. The flexible waterproof layer has many damaged points and is easy to bury Hidden danger of leakage, causing secondary waterproof failure; (4), after the completion of the main steel structure construction, two purlins need to be installed to lay the floor, the horizontal hole of the structure is closed late, the construction efficiency in the early stage of laying is low, and the safety risk is large; (5), It is difficult to reverse the bottom plate, and the efficiency is seriously reduced; (6), there is a large gap between the roof bottom plate and the main steel structure. When the roof system passes through the fire separation part, it is difficult to block fire protection and the cost is high

[0007] The disadvantages of this kind of metal roof with the bottom slab are: (1) The self-weight and external load of the roof system all act on the bottom slab, and then transmit it to the main steel structure through the main purlins. The force transmission path is single, and the stress on the bottom slab and the main purlins is large. , a large amount of steel is used; (2), the fixing of all aluminum alloy supports needs to break through the flexible waterproof layer, and the number of damaged points of the flexible waterproof layer is large, which can easily bury hidden dangers of leakage and cause secondary waterproofing failure; (3) ), after the construction of the main steel structure is completed, it is still necessary to install a main purlin before laying the floor. More difficult and more expensive

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