Analysis of the Advantages and Disadvantages of the Glass Curtain Wall Is Worth Seeing! -Ruminum Profiles Supplier

1. About glass curtain walls in the modern building of glass curtain walls use mirror glass and ordinary glass, as well as a combination of hollow glass full of dry air or inert gases. The hollow glass is divided into two layers and three layers. The two layers of hollow glass consist of two layers of glass and a sealed framework, forming a messele.

Three -layer glass consists of three layers of glass to form two mezzanine spaces. Hollow glass has the advantages of sound insulation, heat insulation, frost, moisture -proof, increased lighting and high wind pressure.

However, there are still problems such as light pollution and high energy consumption.

2. Advantages and disadvantages analysis

(1) advantageous glass curtain wall is a new type of contemporary wall. The biggest feature that gives buildings is organic unification of various factors, such as architectural aesthetics, architectural functions, building energy conservation and building structure. The curtain wall can make the moon, moonlight and light changes give people a dynamic beauty. Reflecting hollow glass is 6mm thick and the wall weighs about 50kg /. It has the advantages of lightweight, beautiful, not pollution and energy saving. Add trace metal elements to the floating glass composition, and then ignit it to make color transparent plate -like glass. The glass can absorb infrared rays, reduce solar radiation entering the room and reduce the indoor temperature. It can not only reflect light like a mirror, but also transmit light like glass. The inside of the glass outside the curtain wall is coated with color metal coating. From the appearance point of view, the entire exterior wall is like a mirror. Under the reflection of light, the room was not exposed to strong light, and the vision was soft.

(2) Disadvantages of glass curtain walls also have some limitations, such as light pollution and high energy consumption. The curtain wall of the building uses coating glass or coating glass. When the direct sunlight and skylight are irradiated with the glass surface, the glare of the reflection is caused by the glass mirror reflection (that is, the forward reflection). However, with the development of glass curtain wall technology and the continuous emergence of new material technology, materials used for building glass curtain walls can now better solve the problem of light pollution and energy consumption.

3. Basic classification

(1) Bare frame glass curtain wall of the nude glass curtain wall is the glass curtain wall exposed on the outer surface of the metal curtain wall. It is framed from an aluminum alloy material with a special cross section, and the glass panel is completely embedded in the groove of the profile. It is characterized by the dual function of aluminum alloy profile itself. The exposed glass curtain wall is the most traditional form, the most widely used and reliable. Compared with the hidden glass curtain wall, it is easier to meet the requirements of construction technology.

(2) The hidden glass curtain wall hidden frame glass curtain wall is hidden behind the glass, and the metal frame is not visible outside. Hidden frame glass curtain walls can be divided into two types: complete hidden frame glass curtain wall and semi -hidden frame glass curtain wall. The semi -hidden frame glass curtain wall can be bright and vertical, or it can be vertically bright and horizontal. The structural characteristics of the hidden frame glass curtain wall are: glass and aluminum frames are bonded with silicone structures on the outside of the aluminum frame. The load of the curtain wall is mainly borne by sealing.

(3) Point glass curtain wall dot glass curtain wall is a glass curtain wall consisting of glass panels, dotted devices and support structures. The glass curtain wall has the stability of the steel structure, the lightness of the glass, and the accuracy of the mechanical. Point glass curtain walls are reliably fixed in the glass drilling holes by using stainless steel claws.

Generally, the glass curtain wall is fixed on the frame with structured glue. After punching the surface glass, fix it with metal. The connection parts are connected to the entire glass curtain wall with the support structure, and most of the general glass curtain walls are a flat frame structure with vertical rod power system. Compared with the ordinary glass curtain wall, the dot glass curtain wall is not in the frame, but the support system is supporting the system. middle. The glass panel on the point glass curtain wall is connected to the support structure only through several points, and there is almost no obstacle, and the field of vision is maximized. The transparency of the glass is suitable for the limit.

Therefore, when using glass, white glass should be used. Ultra -white glass and low -radiation glass, especially the use of hollow glass, have more obvious energy saving effects. But this glass curtain wall did not open the fan.

4. Technical requirements

(1) Sealing material tolerance Silicone gum is used for sealing between glass and glass, and structural silicone gum is used for bonding between glass and metal structures. In the building point glass technology, the sealing glue only plays a sealing role without calculating the strength. Before use, the compatibility test between glue and contact materials must be performed. The performance test is qualified and used within the validity period. It must strictly abide by the operation procedure to ensure the quality of construction.

(2) Glass glass curtain wall should use curtain wall glass with a reflectance of not more than 0.30. For the glass curtain wall with lighting, the reduction coefficient of the sunlight should not be less than 0.20. The frame support glass curtain wall should be safe glass (thin film glass, tempered glass, laminated glass, etc.); panel glass on the point -type glass curtain wall should be tempered glass.

(3) Anticorrosion should be performed on the surface of the metal steel. When using hot -dip galvanized, the membrane thickness should be greater than 45 m; when using static spraying, the membrane thickness should be greater than 40 m. Insulation measures should be taken between different metal materials to prevent electrochemical corrosion between alien metals.

5. Methods that are prone to glass curtain walls

(1) Glass curtain wall of poor fire resistance is non -flammable material, but it will melt or soften when the fire occurs. The glass will rupture in the fire in a short time. Therefore, the fire prevention requirements of the building must be fully considered in architectural design.

(2) The failure of structural glue Due to the disadvantage of the curtain wall exposed to the natural environment for a long time, the structural glue is easy to aging and failure, resulting in the fall of the glass curtain wall. Then in the design, you should try to use a naked frame or a semi -hidden frame glass curtain wall, because even if the structural glue fails, the possibility of the glass drop will be greatly reduced due to the support and constraints of the frame.

(3) Thermal stress causes the glass to swell when the glass rupture and heating. If the heating is uneven, the inside of the glass will produce tensile stress. When there are small cracks on the edge of the glass, these small defects are easily affected by thermal stress, which eventually leads to glass rupture.

Therefore, when installing the glass, it should be finely treated with the edges of the glass to reduce the emergence of cracks.

(4) There are many reasons for the seepage of water -seeping glass curtain wall, but the main reason is that its structure and sealing materials have a greater relationship.

Therefore, the skilled construction party should be selected and the materials that meet national standards should be selected. To reduce water seepage.