PU decoration structure of exterior wall and its construction method

Abstract

The invention provides an exterior wall polyurethane (PU) decorative structure and a construction method thereof, and belongs to the technical field of exterior wall decoration. The problem that the technology of manufacturing an arc-shaped decorative molding with complex curves is extremely difficult due to the fact that the decorative shape of an exterior wall of a high-rise building is large inself weight is solved. According to the technical scheme, the exterior wall PU decorative structure comprises a profile steel keel, and the profile steel keel comprises a main keel, a secondary keel,supporting keels, a base layer plate and a plurality of PU decorative molding panels, wherein the main keel is fixed on the external facade of the main structure of a building by expansion bolts; thesecondary keel of the desired shape is fixed on the main keel; the supporting keel is supported between the main keel and the secondary keel; and the base layer plate is fixed on the exterior facingof the secondary keel, the PU decorative molding panels are glued on the outer surface of the base layer plate, and the PU decorative molding panels and the secondary keel are fixedly assembled through self-tapping screws. The PU decorative molding panels are spliced into an integral arc-shaped shape, so that the purpose of simple construction technology of manufacturing an arc-shaped decorative molding with light self weight is achieved.

Description

technical field [0001] The invention relates to the technical field of building exterior wall decoration, in particular to an exterior wall PU decoration structure and a construction method thereof. Background technique [0002] With the progress of society, people have put forward higher requirements for architectural aesthetics, and the visual effects of construction projects have become more and more "hot spots" that builders and the society pay attention to. Especially in the design and construction of decorative modeling of high-rise building exterior wall decoration engineering, the aesthetics and functions of high-rise buildings are unified, and the continuous innovation of new materials has become the breakthrough point of design. [0003] At present, there are two methods of building exterior wall decoration modeling. 1. The method of cast-in-place concrete: make reinforced concrete shapes directly on the outer wall of the building, but the load of reinforced concr...

AI Technical Summary

Problems solved by technology

1. The method of cast-in-place concrete: make reinforced concrete shapes directly on the outer wall of the building, but the load of reinforced concrete shapes is relatively heavy, which increases the load on the building foundation, beams and columns. When the building floor is high, the building foundation 1. The load bearing requirements of beams and columns are extremely strict, and the construction process of making arc shapes is extremely complicated and difficult, the construction period is prolonged, and the reinforced concrete shapes need to be plastered after demolition, so it is not suitable for decorative shapes of high-rise building exterior walls ;2. The method of dry hanging stone or ceramic panels: install columns and keel skeletons on the outer wall of the building, install pendants on the keel skeleton, and finally hang stone or ceramic panels on the pendants. 6 / 10 to 8 / 10 of the high-rise building, this method can reduce the load requirements of the building foundation and beams and columns in the decoration of high-rise buildings, and reduce the size of the building foundation and main structure. However, the weight of the stone and ceramic panels remains the same. It is heavy, and when the building floor is high, the requirements for the load bearing of the building foundation and beams and columns are still high, and the process of making arc shapes with complex curves is extremely difficult and complicated

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