Exposed frame glass curtain wall adopting PVC (polyvinyl chloride) heat insulation bar structure

Abstract

The invention relates to an exposed frame glass curtain wall adopting a PVC (polyvinyl chloride) heat insulation bar structure. The glass curtain wall comprises a vertical column and hollow glass (3), wherein the vertical column comprises an aluminium profile (1), an aluminium profile inner cover plate (4),an aluminium profile outer cover plate (5) and a screw (6); the aluminium profile inner cover plate (4) covers the aluminium profile (1); the aluminium profile outer cover plate (5) covers the aluminium profile inner cover plate (4); and the hollow glass (3) is embedded between the aluminium profile (1) and the aluminium profile inner cover plate (4) by sealing rubber strips (7). The glass curtain wall is characterized in that a PVC heat insulation bar (2) is embedded between the aluminium profile (1) and the aluminium profile inner cover plate (4) and is connected with the aluminium profile (1) in a dovetail manner; and the screw (6) is used for directly penetrating through and fixing the aluminium profile inner cover plate (4), the PVC heat insulation bar (2) and the aluminium profile (1). The glass curtain wall has strong heat insulation capability and lower cost.

Description

(1) Technical field [0001] The invention relates to a building envelope structure, in particular to a frame-displaying glass curtain wall of the building envelope structure. It belongs to the technical field of building structures. (2) Background technology [0002] Glass curtain walls, doors and windows are important components of building envelopes, and are also the most active and sensitive parts of buildings for heat exchange and heat conduction. The heat loss is about 5 to 6 times that of traditional walls. The energy consumption of glass curtain walls, doors and windows accounts for about 40% of the energy consumption of the entire building. It can be seen that the energy-saving design of glass curtain walls, doors and windows is particularly important. How to find a balance between improving the thermal insulation performance of the enclosure structure, especially the framed glass curtain wall, and reducing the project cost is a problem that every curtain wall design...

AI Technical Summary

Problems solved by technology

However, PA66GF25 (glass fiber reinforced nylon) insulation strips or PUR (polyurethane) material insulation strips have a higher material cost

[0003] Relevant data show that as early as the last century, PVC was used in the manufacture of "heat-breaking" aluminum profiles in Europe. Later, it was found that the physical properties of PVC materials, especially the thermal expansion coefficient, were larger than aluminum alloys (the thermal expansion coefficient was 5 to 18×10-5 ℃, the thermal stress will be higher by 60% to 500%) and the thermal deformation temperature is low, the cold bridge combination part will be distorted or relatively moved under stress, or even fall off, which cannot meet the quality requirements of thermal insulation windows. Through research, Discovered a new material similar to aluminum profiles in terms of thermal expansion coefficient and strength

Images